Illumination control method, program, illumination control system, and illumination system

Abstract

This illumination control method that is executed by one or more processors includes: an acquisition step of acquiring one or more data; and a generation step of generating a dynamic light emission pattern to be irradiated from one or more light sources on the basis of the acquired one or more data.

Description

Lighting control method, program, lighting control system, and lighting system

[0001] The present invention relates to a lighting control method, a program, a lighting control system, and a lighting system.

[0002] Patent Document 1 discloses an input processing device. This input processing device includes an input member and a control processing unit. The input member has an input pad and a detection unit that detects when a finger touches the input pad. The control processing unit inputs characters or symbols based on an input signal obtained from the detection unit.

[0003] JP 2010-257197 A

[0004] The input processing device disclosed in Patent Document 1 can display a dynamic pattern drawn by a user on an input pad on a display, but has the problem that it cannot reproduce a dynamic illumination pattern by illumination.

[0005] In view of the above-mentioned problems, the present invention provides a lighting control method and the like that makes it easy to reproduce a dynamic lighting pattern drawn by a user using lighting.

[0006] A lighting control method according to one aspect of the present invention is a lighting control method executed by one or more processors, and includes an acquisition step of acquiring one or more pieces of data, and a generation step of generating a dynamic light emission pattern to be irradiated from one or more light sources based on the acquired one or more pieces of data.

[0007] A lighting control method according to one aspect of the present invention is a lighting control method executed by one or more processors, and includes an acquisition step and a control step. In the acquisition step, trajectory data indicating a trajectory is acquired. In the control step, a light source including a plurality of individually controllable light-emitting elements arranged in an array is controlled based on the acquired trajectory data, thereby causing the light source to emit a light emission pattern indicating the trajectory.

[0008] A program according to one aspect of the present invention causes one or more processors to execute the lighting control method.

[0009] According to one aspect of the present invention, there is provided a lighting control system including an acquisition unit and a control unit. The acquisition unit acquires trajectory data indicating a trajectory. The control unit controls a light source including an array of individually controllable light-emitting elements based on the trajectory data acquired by the acquisition unit, thereby causing the light source to emit a light-emitting pattern indicating the trajectory.

[0010] A lighting system according to one aspect of the present invention includes the lighting control system, the light source, and a housing that houses the lighting control system and the light source.

[0011] A lighting control method according to one aspect of the present invention is a lighting control method executed by one or more processors, and includes an acquisition step and a generation step. In the acquisition step, one or more images are acquired. In the generation step, a dynamic light emission pattern to be irradiated from one or more light sources is generated based on the one or more acquired images.

[0012] A program according to one aspect of the present invention causes one or more processors to execute the lighting control method.

[0013] According to one aspect of the present invention, there is provided a lighting control system including an acquisition unit and a generation unit, wherein the acquisition unit acquires one or more images, and the generation unit generates a dynamic light pattern to be emitted from one or more light sources based on the acquired one or more images.

[0014] A lighting system according to one aspect of the present invention includes the lighting control system, the one or more light sources, and a housing that houses the lighting control system and the one or more light sources, wherein the one or more light sources are a single light source having a plurality of individually controllable light-emitting elements arranged in an array.

[0015] The lighting control method and the like of the present invention have the advantage that dynamic lighting patterns drawn by a user can be easily reproduced by lighting.

[0016] FIG. 1 is a schematic perspective view of a lighting system according to an embodiment. FIG. 2 is a schematic cross-sectional view of a first housing of the lighting system according to an embodiment. FIG. 3 is a block diagram showing an overall configuration including the lighting system according to an embodiment. FIG. 4 is an explanatory diagram of control by a control unit of the lighting control system according to an embodiment. FIG. 5 is a diagram showing an example of use of a control terminal according to an embodiment. FIG. 6 is a flowchart showing an example of a basic operation of the lighting control system according to an embodiment. FIG. 7 is a diagram showing a first example of operation of the lighting control system according to an embodiment. FIG. 8 is a diagram showing a second example of operation of the lighting control system according to an embodiment. FIG. 9 is a diagram showing a third example of operation of the lighting control system according to an embodiment. FIG. 10 is a block diagram showing an overall configuration including the lighting system according to an embodiment. FIG. 11 is an explanatory diagram of input of one or more images to a control terminal according to an embodiment. FIG. 12 is an explanatory diagram of generation of a dynamic light-emitting pattern by a generation unit of the lighting control system according to an embodiment. FIG. 13 is an explanatory diagram of control by a control unit of the lighting control system according to an embodiment. FIG. 14 is a diagram showing an example of use of a control terminal according to an embodiment. FIG. 15 is a diagram showing an example of a dynamic light-emitting pattern imaged on a wall surface. FIG. 16 is a flowchart showing an example of operation of the lighting control system according to an embodiment.

[0017] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below represents a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements and connection forms, steps, step sequences, etc. shown in the following embodiments are merely examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, components not recited in the independent claims will be described as optional components.

[0018] Furthermore, each figure is a schematic diagram and is not necessarily an exact illustration. Therefore, for example, the scales and the like do not necessarily match in each figure. Furthermore, in each figure, substantially the same configurations are assigned the same reference numerals, and duplicate explanations are omitted or simplified.

[0019] Furthermore, in this specification, terms indicating the relationship between elements, terms indicating the shape of elements, and numerical ranges are not expressions that only express a strict meaning, but are expressions that also include a substantially equivalent range, for example, a difference of about a few percent.

[0020] (Embodiment 1) [Lighting System] First, the configuration of a lighting system according to an embodiment will be described with reference to Figs. 1 to 3. Fig. 1 is a schematic perspective view of a lighting system 100 according to an embodiment. Fig. 2 is a schematic cross-sectional view of a first housing 111 (described later) of the lighting system 100 according to an embodiment. Fig. 3 is a block diagram showing the overall configuration including the lighting system 100 according to an embodiment.

[0021] 1 to 3, lighting system 100 is a single lighting device 10 that houses a light source 12, a drive unit 13, a heat sink 14, a lens barrel 15, and a lighting control system 2 in a housing 11. In the embodiment, housing 11 has a cylindrical first housing 111 that houses light source 12 and drive unit 13, and a rectangular parallelepiped second housing 112 that houses lighting control system 2. Note that housing 11 may also be formed from a single housing.

[0022] The lighting device 10 is, for example, a spotlight, and is attached to a wiring fixture (for example, a wiring duct or a ceiling hook) provided on a ceiling or a wall. Note that the lighting device 10 is not limited to a spotlight, and may be, for example, a downlight or a ceiling light.

[0023] The light source 12 is a light source that emits, for example, white light. The light source 12 has a plurality of light-emitting elements 121 (see FIG. 3 ) arranged in a two-dimensional matrix. The plurality of light-emitting elements 121 are regularly arranged in a matrix of M rows and N columns. Here, at least one of M and N is a natural number of 2 or more. M may be equal to N, or M may not be equal to N. The arrangement intervals of the light-emitting elements 121 in the row direction and the column direction may be the same or different. In the embodiment, the outer shape of the area in which the plurality of light-emitting elements 121 are arranged is rectangular, but it may be another shape, such as circular.

[0024] Each light-emitting element 121 includes, for example, a blue light-emitting element and a yellow phosphor. In each light-emitting element 121, the yellow phosphor is disposed on the light-emitting side (front) of the blue light-emitting element. The blue light-emitting element is, for example, an LED (Light Emitting Diode). More specifically, the blue light-emitting element is, for example, a minute LED measuring, for example, 100 μm×100 μm or less. The yellow phosphor is a phosphor that emits yellow light when excited by blue light. Each light-emitting element 121 emits white light as a mixture of blue light and yellow light. The yellow phosphor is, for example, a YAG (yttrium aluminum garnet) phosphor, but is not limited to this.

[0025] The yellow phosphor may be provided so as to cover the plurality of blue light-emitting elements. For example, a yellow phosphor may be disposed so as to entirely cover the plurality of blue light-emitting elements arranged in a two-dimensional matrix.

[0026] The driver 13 drives the light source 12. Specifically, the driver 13 drives each of the plurality of light-emitting elements 121 independently (i.e., individually) according to control information received from a controller 222 of the lighting control system 2 (described later). This allows the on / off, light-emitting intensity, light-emitting time, and other aspects of each of the plurality of light-emitting elements 121 to be individually controlled. For example, by individually controlling the on / off of the plurality of light-emitting elements 121, it is possible to emit illumination light with varying brightness in each region. Then, by irradiating the illumination light onto, for example, a wall surface, an illumination pattern C1 (see FIG. 5 ) corresponding to the brightness can be formed on the wall surface.

[0027] As described above, in the embodiment, the driving unit 13 drives each of the plurality of light-emitting elements 121 independently of one another, so there is no need to provide a liquid crystal device or a DMD (Digital Mirror Device) inside the housing 11 as in a general projector, and this makes it easier to reduce the size of the lighting device 10.

[0028] The driver 13 is realized by, for example, an application specific integrated circuit (ASIC). The driver 13 supplies a current modulated by pulse width modulation (PWM) to each of the plurality of light emitting elements 121. The driver 13 adjusts the pulse width of the current supplied to each light emitting element 121 to change the light emission intensity of each light emitting element 121, thereby achieving a dimming function. Note that the dimming method is not limited to PWM modulation, and may be other modulation methods such as amplitude modulation or phase modulation.

[0029] In the embodiment, the driving unit 13 is mounted on a single substrate (not shown) together with the light source 12. The substrate is, for example, a rigid substrate, but may also be a flexible substrate. The substrate is provided with, for example, pattern wiring for supplying current from the driving unit 13 to each of the plurality of light-emitting elements 121. Note that the substrate on which the driving unit 13 is mounted and the substrate on which the light source 12 is mounted may be separate.

[0030] The heat sink 14 is made of, for example, metal and is provided integrally with the metal housing 11 (here, the first housing 111). A board on which the light source 12 and the drive unit 13 are mounted is fixed to one surface of the heat sink 14 directly or indirectly via an insulating member or the like. This thermally connects the heat sink 14 and the board, and heat generated by the light source 12 and the drive unit 13 is dissipated via the heat sink 14. A fixing member such as an adhesive or a screw is used to fix the heat sink 14 to the board.

[0031] Lens barrel 15 is an optical member including one or more lenses 151. In this embodiment, lens barrel 15 applies a predetermined optical effect to the light emitted from light source 12 and emits the light forward so that an illumination pattern C1 based on the illumination light is imaged on a wall surface located in front of the lens barrel.

[0032] In the embodiment, the lens barrel 15 includes a barrel body and one or more lenses 151 (two lenses 151 in this example) fixed to the barrel body. The number, shape, outer diameter, and other factors of the lenses 151 included in the lens barrel 15 are determined as appropriate, for example, depending on the functionality required of the lens barrel 15. In the embodiment, the lens barrel 15 is movable in the front-rear direction relative to the light source 12 (its position can be adjusted in the front-rear direction). This allows the position of the lens barrel 15 to be adjusted in accordance with the distance between the lighting device 10 and a wall surface onto which the illumination light is irradiated, so that an illumination pattern C1 based on the illumination light is imaged on the wall surface. In other words, in the embodiment, the lighting device 10 is capable of adjusting the focus of the illumination pattern C1 based on the illumination light.

[0033] [Lighting Control System] Next, a lighting control system 2 according to an embodiment will be described with reference to Fig. 3. As shown in Fig. 3, the lighting control system 2 includes a communication unit 21, a processing unit 22, a storage unit 23, and a power supply unit 24. Note that the lighting control system 2 only needs to include the processing unit 22 (an acquisition unit 221 and a control unit 222, which will be described later), and may not include the communication unit 21, the storage unit 23, or the power supply unit 24.

[0034] The communication unit 21 communicates with the control terminal 3, which will be described later. In this embodiment, the communication unit 21 communicates wirelessly with the control terminal 3. Specifically, the communication unit 21 communicates with the control terminal 3 via a wireless LAN (Local Area Network) using Wi-Fi (registered trademark). The communication unit 21 is realized, for example, by an antenna and a wireless processing circuit that processes signals received by the antenna.

[0035] The processing unit 22 is realized, for example, by an LSI (Large Scale Integration), which is an integrated circuit (IC). The integrated circuit is not limited to an LSI, but may be a dedicated circuit or a general-purpose processor. In the embodiment, the processing unit 22 is a microcontroller. The microcontroller includes, for example, a non-volatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, input / output ports, and a processor that executes the program. The processing unit 22 may also be a programmable FPGA (Field Programmable Gate Array) or a reconfigurable processor in which the connections and settings of circuit cells in the LSI can be reconfigured. The functions performed by the processing unit 22 may be realized by software or hardware.

[0036] In the embodiment, the processing unit 22 has a function as an acquisition unit 221 and a function as a control unit 222. That is, the lighting control system 2 according to the embodiment includes the acquisition unit 221 and the control unit 222.

[0037] The acquisition unit 221 acquires trajectory data indicating a trajectory B1 (see FIGS. 4 and 5 ). Here, the trajectory B1 is, for example, a figure drawn by a user A1 (see FIG. 5 ) by moving a part of the user's body (e.g., a finger). In other words, the trajectory data is data indicating a figure drawn by hand by the user A1. In the embodiment, the acquisition unit 221 acquires the trajectory data by detecting the trajectory B1 drawn by the user A1 using the control terminal 3 having a detection unit 32 that detects the movement of the user A1's finger. More specifically, when the control terminal 3 detects the trajectory B1, trajectory data indicating the trajectory B1 is transmitted from the control terminal 3 to the communication unit 21 of the lighting control system 2. The acquisition unit 221 then acquires the trajectory data received by the communication unit 21. The trajectory B1 is an example of a dynamic lighting pattern.

[0038] Based on the trajectory data acquired by the acquisition unit 221, the control unit 222 controls the light source 12, which includes an array of individually controllable light-emitting elements 121, to emit a light-emitting pattern C1 representing the trajectory B1 from the light source 12. The control by the control unit 222 will be specifically described below with reference to FIG. 4 . FIG. 4 is an explanatory diagram of the control by the control unit 222 of the lighting control system 2 according to the embodiment. In FIG. 4 , the grid represents the light-emitting elements 121 arranged in a two-dimensional array. The grid shown in FIG. 4 roughly matches the size of the image including the trajectory B1 indicated by the trajectory data. In other words, the control unit 222 normalizes the image so that the size of the two-dimensional array in which the light-emitting elements 121 are arranged roughly matches the size of the image including the trajectory B1 indicated by the trajectory data. This results in a one-to-one correspondence between the pixels included in the image and the light-emitting elements 121 in the two-dimensional array. For example, the pixel in the upper left corner of the image corresponds to the light-emitting element 121 in the upper left corner of the two-dimensional array.

[0039] The control unit 222 determines the light emission pattern C1 based on the trajectory data. Specifically, the control unit 222 identifies two or more light-emitting elements 121 that respectively correspond to two or more pixels that form the trajectory B1 in the image. The control unit 222 also determines the luminance of each of the two or more light-emitting elements 121 based on the pixel values ​​of the two or more pixels. The control unit 222 then generates control information based on the identified two or more light-emitting elements 121 and the luminance of each of the two or more light-emitting elements 121.

[0040] The control information includes information regarding the on / off and emission intensity of each of the plurality of light-emitting elements 121. For example, the emission intensity can be expressed as an 8-bit numerical value ranging from 0% (off) to 100% (on at the highest emission intensity). The control unit 222 generates, as the control information, array data including data representing the emission intensity of each light-emitting element 121 in 8 bits for each row of the plurality of light-emitting elements 121. Here, the control unit 222 generates, as the control information, array data in which the emission intensity of two or more of the light-emitting elements 121 is greater than 0% and the emission intensity of the remaining light-emitting elements 121 is 0%.

[0041] The control unit 222 then outputs the generated control information to the drive unit 13. The drive unit 13 individually drives the multiple light-emitting elements 121 in accordance with the received control information. Here, the drive unit 13 turns on only the two or more light-emitting elements 121 and turns off the remaining light-emitting elements 121. As a result, an illumination pattern C1 indicating the trajectory B1 is emitted from the light source 12, and the illumination light emitted from the light source 12 is irradiated onto, for example, a wall surface, thereby forming an image of the illumination pattern C1 on the wall surface.

[0042] The storage unit 23 is a storage device that stores computer programs and the like executed by the processing unit 22. The storage unit 23 is realized by, for example, a semiconductor memory.

[0043] The power supply unit 24 supplies operating power to the lighting control system 2 and the drive unit 13. The power supply unit 24 has, for example, an AC-DC converter circuit, converts AC power supplied from the commercial power supply 4 into DC power, and supplies the converted DC power to each component of the lighting control system 2 and the drive unit 13.

[0044] [Control Terminal] Next, the control terminal 3 according to the embodiment will be described. The control terminal 3 is, for example, a mobile terminal such as a smartphone or a tablet terminal. In the embodiment, the control terminal 3 is a tablet terminal. Note that the control terminal 3 may also be, for example, a device fixed to a wall or the like, or a device such as a desktop or laptop personal computer.

[0045] As shown in FIG. 3, the control terminal 3 includes a display unit 31, a detection unit 32, a processing unit 33, and a transmission unit .

[0046] The display unit 31 displays the trajectory B1 drawn by the user A1. The display unit 31 is realized by, for example, a liquid crystal display panel or an organic EL (Electroluminescence) display panel. In the embodiment, the display unit 31 is realized by a touch panel display having a touch sensor as the detection unit 32.

[0047] The detection unit 32 detects the movement of the user A1. In the embodiment, the detection unit 32 is a touch sensor as described above, and detects the movement of the user A1's finger touching the display unit 31. The detection unit 32 may detect the movement of the user A1 by detecting, for example, an input by the user A1 using a pointing device such as a pen or a mouse. The detection unit 32 may also detect the movement of the user A1 in space using, for example, a gyro sensor. In this case, the control terminal 3 does not need to have a display unit 31 for drawing the trajectory B1.

[0048] The processing unit 33 is realized, for example, by an LSI, which is an integrated circuit. Note that the integrated circuit is not limited to an LSI, and may be a dedicated circuit or a general-purpose processor. In the embodiment, the processing unit 33 is a microcontroller. The microcontroller includes, for example, a non-volatile memory in which a program is stored, a volatile memory that is a temporary storage area for executing the program, input / output ports, and a processor that executes the program. Furthermore, the processing unit 33 may be a programmable FPGA or a reconfigurable processor that allows the connections and settings of circuit cells in the LSI to be reconfigured. The functions performed by the processing unit 33 may be realized by software or hardware.

[0049] In the embodiment, the processing unit 33 executes a process (transmission step) of converting point cloud data indicating the trajectory B1 drawn by the user A1 detected by the detection unit 32 into an image, and transmitting the converted image as trajectory data from the transmission unit 34 to the communication unit 21 of the lighting control system 2. The processing unit 33 also executes a process (drawing step) of drawing the trajectory B1 drawn by the user A1 detected by the detection unit 32 on the display unit 31.

[0050] The transmitter 34 communicates with the lighting system 100 (lighting device 10). In this embodiment, the transmitter 34 communicates with the lighting device 10 wirelessly. Specifically, the transmitter 34 communicates with the lighting device 10 using Bluetooth (registered trademark) Low Energy (BLE). The transmitter 34 is realized, for example, by an antenna and a wireless processing circuit that processes signals received by the antenna.

[0051] Fig. 5 is a diagram showing an example of use of the control terminal 3 according to the embodiment. In Fig. 5, the area surrounded by a dashed line represents the range that can be illuminated by the light source 12. As shown in Fig. 5, when a user A1 draws a trajectory B1 of any shape on the display unit 31 using the control terminal 3, an illumination pattern C1 representing the trajectory B1 is illuminated in real time from the light source 12 in accordance with the input of the trajectory B1 by the user A1. As a result, an image of the illumination pattern C1 based on the illumination light is formed on the wall surface, as if the user A1 were directly drawing the trajectory B1 on the wall surface.

[0052] In the example shown in Figure 5, an illumination pattern C1 showing the entire trajectory B1 drawn by user A1 is formed on the wall surface, but in reality, even while user A1 is in the middle of drawing trajectory B1, an illumination pattern C1 showing the trajectory B1 up to the part being drawn is formed on the wall surface.

[0053] In the embodiment, the processing unit 33 executes the following first and second processes to reduce the delay time from when the control terminal 3 accepts input of the trajectory B1 by the user A1 until when the light source 12 emits illumination light. That is, in the embodiment, the processing unit 33 executes a process to cause the light source 12 to emit the light emission pattern C1 indicating the trajectory B1 drawn by the user A1 onto a wall surface or the like with as little delay as possible.

[0054] In the first process, the processing unit 33 executes a transmission step in which it compresses an image showing the trajectory B1 and transmits the compressed image as trajectory data to the lighting system 100 (lighting device 10). The processing unit 33 then time-shares the process of detecting the trajectory B1 drawn by the user A1 (the detection step) and the transmission step, depending on the time required for each process. For example, the processing unit 33 executes the detection step at a rate of 60 times per second, while executing the transmission step at a rate of 10 times per second. This prevents the processing unit 33 from failing to accept input of the trajectory B1 by the user A1 during the waiting time between the execution of the transmission step by the processing unit 33 and the execution of the next transmission step, for example, preventing the display unit 31 from displaying the trajectory B1 and becoming locked. Therefore, by executing the first process, the processing unit 33 makes it easier for the user A1 to smoothly input the trajectory B1, reducing stress for the user A1.

[0055] Here, in the first process, the detection step and the transmission step are executed so that the intervals at which trajectory data is transmitted to the lighting system 100 (lighting device 10) are constant. For example, if the processing time required for either the detection step or the transmission step becomes excessive and the intervals are likely to be disrupted, the processing unit 33 abandons the process and executes the next process. Note that scheduling for executing the detection step and the transmission step can be implemented using an API (Application Programming Interface) such as requestAnimationFrame in a web browser included in the control terminal 3, for example.

[0056] Furthermore, in the first process, the processing unit 33 selects an optimal compression format to use when compressing the image from among Run Length Encoding (RLE), Portable Network Graphics (PNG), Graphics Interchange Format (GIF), Joint Photographic Experts Group (JPEG), Scalable Vector Graphics (SVG), etc. Here, the optimal compression format is a compression format that minimizes the sum of the time required to transmit the trajectory data and the time required to decode the trajectory data in the lighting control system 2. By selecting the optimal compression format in this way, the amount of trajectory data to be transmitted can be reduced, making it easier to reduce delay time.

[0057] In the second process, the processing unit 33 acquires trajectory data by converting data in which some points have been thinned out from the point cloud data representing the trajectory B1 into an image in the transmission step, or by converting only the trajectory B1 drawn on the display unit 31 into an image. In the former process, for example, a process of thinning out points that are less likely to have a visual impact on the user A1 is performed in terms of image resolution. By performing the above-described preprocessing before converting into an image in this way, the amount of trajectory data to be transmitted can be reduced, making it easier to reduce delay time.

[0058] In the embodiment, the processing unit 33 executes all of the above processes, but even if the processing unit 33 executes only one of the first process and the second process, the effect of reducing delay time can be expected.

[0059] [Operation] The operation of the lighting control system 2 according to the embodiment will be described below. First, an example of the basic operation of the lighting control system 2 according to the embodiment will be described with reference to Fig. 6. Fig. 6 is a flowchart showing an example of the basic operation of the lighting control system 2 according to the embodiment.

[0060] First, the acquisition unit 221 of the lighting control system 2 acquires trajectory data indicating trajectory B1 (S1). In the embodiment, as already described, when the control terminal 3 detects the trajectory B1 drawn by the user A1, the trajectory data indicating the trajectory B1 is transmitted from the control terminal 3 to the communication unit 21 of the lighting control system 2. Then, the acquisition unit 221 acquires the trajectory data received by the communication unit 21.

[0061] Next, the control unit 222 of the lighting control system 2 controls the light source 12 based on the trajectory data acquired by the acquisition unit 221, thereby causing the light source 12 to emit an illumination pattern C1 indicating the trajectory B1 (S2). In the embodiment, as already described, the control unit 222 determines the illumination pattern C1 based on the trajectory data acquired by the acquisition unit 221, generates control information, and outputs the generated control information to the drive unit 13. The drive unit 13 individually drives the multiple light-emitting elements 121 of the light source 12 in accordance with the received control information. As a result, the illumination pattern C1 indicating the trajectory B1 is emitted from the light source 12, and the illumination light emitted from the light source 12 is irradiated onto, for example, a wall surface, thereby forming an image of the illumination pattern C1 on the wall surface.

[0062] Thereafter, while the user is drawing the path B1 on the control terminal 3, the above steps S1 and S2 are repeatedly executed.

[0063] Next, we will explain operation examples other than the basic operation example of the lighting control system 2 according to the embodiment. The first to third operation examples described below can all be executed after the basic operation example has been executed, that is, when the light emission pattern C1 indicating the trajectory B1 is irradiated onto a wall surface or the like.

[0064] 7 is a diagram showing a first operation example of the lighting control system 2 according to the embodiment. In the first operation example, the control unit 222 of the lighting control system 2 (in the control step) causes the light source 12 to emit an illumination pattern C1 indicating a locus B1, at least a portion of which is dimmed or erased in accordance with predetermined conditions. In the example shown in FIG. 7, a portion of the illumination pattern C1 imaged on the wall surface is erased in accordance with predetermined conditions. Note that in FIG. 7, the pattern shown by dotted lines represents the illumination pattern C1 before erasure.

[0065] Here, the predetermined condition includes, for example, the elapsed time from the time when the light source 12 emitted the light emission pattern C1. Specifically, the control unit 222 executes a process of sequentially erasing the light emission pattern C1 emitted from the light source 12, starting with the part that was emitted from the light source 12 the oldest, according to the elapsed time. As a result, the light emission pattern C1 imaged on the wall surface is gradually erased.

[0066] The predetermined condition also includes, for example, receiving an input from the control terminal 3 specifying a portion of the trajectory B1 to be dimmed or erased. Specifically, the user A1 operates the control terminal 3 to specify a portion of the trajectory B1 drawn on the display unit 31 and input an instruction to erase the specified portion. The control unit 222 then executes a process to erase the specified portion of the light-emitting pattern C1 emitted from the light source 12. As a result, the specified portion of the light-emitting pattern C1 imaged on the wall surface is erased.

[0067] FIG. 8 is a diagram illustrating a second operation example of the lighting control system 2 according to the embodiment. In the second operation example, the control unit 222 of the lighting control system 2 enlarges (or reduces) the light-emitting pattern C1. In the example shown in FIG. 8, the light-emitting pattern C1 imaged on the wall surface is enlarged. Note that the pattern shown by dotted lines in FIG. 8 represents the light-emitting pattern C1 before enlargement. Specifically, the user A1 operates the control terminal 3 to input an enlargement by, for example, pinching out the trajectory B1 drawn on the display unit 31. The control unit 222 then executes a process to enlarge the light-emitting pattern C1 emitted from the light source 12. As a result, the light-emitting pattern C1 imaged on the wall surface is enlarged.

[0068] FIG. 9 is a diagram illustrating a third operation example of the lighting control system 2 according to the embodiment. In this third operation example, the control unit 222 of the lighting control system 2 moves the light emission pattern C1 from its original position to a predetermined position. Note that the dotted line in FIG. 9 represents the light emission pattern C1 before the movement. Specifically, the user A1 operates the control terminal 3 to input an input to move the trajectory B1 drawn on the display unit 31 to the predetermined position, for example by dragging it. The control unit 222 then executes a process to move the light emission pattern C1 emitted from the light source 12 from its original position to the predetermined position. As a result, the light emission pattern C1 formed on the wall surface moves from its original position to the predetermined position.

[0069] As in the first to third operation examples described above, the acquisition unit 221 of the lighting control system 2 according to the embodiment (in the acquisition step) acquires parameters related to the locus B1 by receiving an input specifying the parameters at the control terminal 3. Then, the control unit 222 (in the control step) causes the light source 12 to emit the light emission pattern C1 based on the acquired parameters. Here, the parameters include, for example, at least one of the line type of the locus B1, the shape of the locus B1, the brightness of the locus B1, the position of the locus B1, and the size of the locus B1.

[0070] For example, in the first operation example, an input to designate and erase a portion of the locus B1 corresponds to designating a parameter related to the brightness of the portion of the locus B1. Also, for example, in the second operation example, an input to enlarge or reduce the locus B1 corresponds to designating a parameter related to the size of the locus B1. Also, for example, in the third operation example, an input to move the locus B1 to a predetermined position corresponds to designating a parameter related to the position of the locus B1.

[0071] In addition to the first to third operation examples described above, for example, when user A1 operates the control terminal 3 and performs an input to group multiple trajectories B1 drawn on the display unit 31 into one group, the control unit 222 may execute a process of treating multiple light emission patterns C1 corresponding to the multiple trajectories B1 as one object. Furthermore, for example, when user A1 operates the control terminal 3 and performs an input to copy the trajectory B1 drawn on the display unit 31, the control unit 222 may further irradiate from the light source 12 an light emission pattern C1 that is the same as the light emission pattern C1 corresponding to the trajectory B1.

[0072] Furthermore, for example, when user A1 operates the control terminal 3 and makes an input to deform or change color over time at least a portion of the trajectory B1 drawn on the display unit 31, the control unit 222 may cause the light source 12 to emit an illumination pattern C1 indicating the trajectory B1, at least a specified portion of which deforms or changes color over time.

[0073] Note that, for example, when vibrating the light emitting pattern C1 indicating the locus B1 which is a character, a light emitting pattern indicating an object which is relatively easy to vibrate and which the user A1 can easily associate with vibrating, such as tofu or pudding, may be irradiated from the light source 12 alongside the light emitting pattern C1 indicating the locus B1. Furthermore, the light emitting pattern indicating the object may be irradiated from the light source 12 after the light emitting pattern C1 indicating the locus B1 is erased. In this case, it becomes easier for the user A1 to recognize that the locus B1 which is a character is vibrating.

[0074] [Advantages] The advantages of the lighting control system 2 (lighting control method) according to the embodiment will be described below. As described above, in the lighting control system 2 according to the embodiment, a light source 12 including an array of a plurality of individually controllable light-emitting elements 121 irradiates an illumination pattern C1 representing the acquired trajectory B1. Therefore, in the lighting control system 2 according to the embodiment, when a user A1 draws a trajectory B1 using, for example, the control terminal 3, trajectory data representing the trajectory B1 is acquired and an illumination pattern C1 representing the trajectory B1 is irradiated from the light source 12. This has the advantage of making it easy to reproduce the trajectory B1 drawn by the user A1 using lighting. Furthermore, when, for example, an artist uses the lighting control system 2 according to the embodiment, it has the advantage of making it easy to realize a variety of performances.

[0075] Furthermore, in the lighting control system 2 according to the embodiment, the light source 12, which is an array of a plurality of individually controllable light-emitting elements 121, emits the light emission pattern C1. This makes it easy to illuminate only the area on a wall surface that corresponds to the locus B1. Therefore, compared to a device such as a projector that illuminates areas on a wall surface other than the locus B1, the lighting control system 2 according to the embodiment has the advantage of easily increasing the contrast between the area of ​​the locus B1 and areas other than the locus B1. Furthermore, compared to a device such as a projector, the lighting control system 2 according to the embodiment has the advantage of easily creating more natural-looking shadows due to the illumination light. Furthermore, the lighting control system 2 according to the embodiment has the advantage of consuming approximately the same amount of power as a typical lighting device. Furthermore, the lighting control system 2 according to the embodiment has the advantage of easily changing the illumination range without moving the light source 12 itself.

[0076] (Embodiment 2) [Lighting System] First, the configuration of a lighting system according to this embodiment will be described with reference to Fig. 10. Fig. 10 is a block diagram showing the overall configuration including a lighting system 100 according to this embodiment. The same components and functions as those in Embodiment 1 are denoted by the same reference numerals, and descriptions thereof will be omitted where appropriate.

[0077] [Lighting Control System] Next, a lighting control system 2 according to an embodiment will be described with reference to Fig. 10. As shown in Fig. 10, the lighting control system 2 includes a communication unit 21, a processing unit 22, a storage unit 23, and a power supply unit 24. Note that the lighting control system 2 only needs to include the processing unit 22 (an acquisition unit 221 and a generation unit 222a, which will be described later), and may not include the communication unit 21, the storage unit 23, or the power supply unit 24.

[0078] In the embodiment, the processing unit 22 has a function as an acquisition unit 221, a function as a generation unit 222a, and a function as a control unit 223. In other words, the lighting control system 2 according to the embodiment includes the acquisition unit 221, the generation unit 222a, and the control unit 223.

[0079] The acquisition unit 221 acquires one or more images P1 (see FIGS. 11 and 12). Here, each of the one or more images P1 is an image showing a light emission pattern emitted from the light source 12, and includes one or more objects Ob1 (see FIG. 13). Each of the one or more objects Ob1 includes, for example, a point, a line, or a two-dimensional figure such as a triangle or a circle. Note that each of the one or more images P1 may be a still image or a moving image. For example, the one or more images P1 may include a moving image that repeats a certain pattern, such as sunlight filtering through the trees.

[0080] In the embodiment, the acquisition unit 221 acquires one or more images P1 by acquiring illumination parameters transmitted from the control terminal 3. Specifically, when a user A1 (see FIG. 14 ) inputs designation of one or more images P1 on the control terminal 3, the control terminal 3 transmits one or more illumination parameters corresponding to the one or more images P1 to the communication unit 21 of the lighting control system 2. The acquisition unit 221 then acquires the one or more illumination parameters received by the communication unit 21, thereby indirectly acquiring one or more images P1. Here, the one or more illumination parameters are parameters indicating the position, brightness, etc. of one or more objects Ob1 in the one or more images P1. Therefore, it can be said that the acquisition unit 221 can reproduce one or more images P1 by acquiring the one or more illumination parameters, and thus can indirectly acquire one or more images P1.

[0081] The control terminal 3 may transmit the one or more images P1 to the communication unit 21 of the lighting control system 2, instead of the irradiation parameters corresponding to the one or more images P1. In this case, the acquisition unit 221 acquires the one or more images P1 received by the communication unit 21, thereby directly acquiring the one or more images P1.

[0082] The generation unit 222a generates a dynamic light emission pattern B12 (see FIG. 15 ) to be emitted from one or more light sources 12 (one light source 12 in the embodiment) based on one or more images P1 acquired by the acquisition unit 221. Here, the dynamic light emission pattern B12 is a pattern in which one or more objects Ob1 included in each of the one or more images P1 change over time. In other words, the dynamic light emission pattern B12 is an animation in which feature quantities of one or more objects Ob1, such as the position, shape, brightness, number, size, rotation angle, roundness of corners, or degree of penumbra at the edge, change from frame to frame. The dynamic light emission pattern B12 is an example of a dynamic illumination pattern.

[0083] Examples of generation of the dynamic light emission pattern B12 by the generation unit 222a are listed below. In the embodiment, the generation unit 222a generates the dynamic light emission pattern B12 according to the first example shown below.

[0084] In the first example, the acquisition unit 221 acquires a first image P11, which is the starting point of the dynamic light emission pattern B12, and a second image P12, which is the end point of the dynamic light emission pattern B12. In other words, in the first example, the one or more images P1 include the first image P11 and the second image P12. The generation unit 222a then generates one or more interpolated images P2 (see FIG. 12 ) that change from the first image P11 to the second image P12, and generates the dynamic light emission pattern B12 based on the first image P11, the one or more interpolated images P2, and the second image P12. In other words, when generating the dynamic light emission pattern B12, the generation unit 222a generates one or more interpolated images P2 that respectively correspond to one or more missing frames among all frames of the dynamic light emission pattern B12. The generating unit 222a then generates a dynamic light emission pattern B12 that starts from the first image P11, passes through one or more interpolated images P2 over time, and reaches the second image P12.

[0085] A specific example of the first example will be described below with reference to Fig. 11 and Fig. 12. Fig. 11 is an explanatory diagram of input of one or more images P1 to the control terminal 3 according to the embodiment. Fig. 12 is an explanatory diagram of generation of a dynamic light emission pattern B12 by the generation unit 222a of the lighting control system 2 according to the embodiment.

[0086] 11 , user A1 operates the control terminal 3 to place one or more images P1 on a timeline TL1 displayed on the display unit 31, thereby inputting to specify one or more images P1. Here, user A1 places two images P1 on the timeline TL1. By arranging the two images P1 in this manner, the control terminal 3 recognizes the left image P1 of the two images P1 as a first image P11 that is the starting point of a dynamic light-emitting pattern, and the right image P1 as a second image P12 that is the end point of the dynamic light-emitting pattern.

[0087] When the control terminal 3 receives input specifying the first image P11 and the second image P12, it converts the first image P11 and the second image P12 into lighting parameters corresponding to the first image P11 and lighting parameters corresponding to the second image P12, respectively, and transmits the converted lighting parameters to the communication unit 21 of the lighting control system 2. As a result, the acquisition unit 221 of the lighting control system 2 acquires the first image P11 and the second image P12 as one or more images P1.

[0088] Then, the generation unit 222a generates one or more interpolated images P2 based on the first image P11 and the second image P12 acquired by the acquisition unit 221. In the example shown in Fig. 12, for ease of explanation, the first interpolated image P21 and the second interpolated image P22 are generated as the one or more interpolated images P2, but a larger number of interpolated images P2 may be generated depending on the frame rate of the dynamic light emission pattern B12.

[0089] 12, the generation unit 222a generates a first interpolated image P21 at time t1 (t0<t1<t3) and a second interpolated image P22 at time t2 (t1<t2<t3), with the start point of the dynamic light emission pattern B12 set to time t0 and the end point set to time t3 (>t0). Here, the generation unit 222a generates the first interpolated image P21 and the second interpolated image P22 on the assumption that the position and size of each object Ob1 included in the image P1 change linearly from the start point to the end point.

[0090] More specifically, because a rectangular first object Ob11 included in image P1 moves from bottom to top from the start point to the end point, the generation unit 222a generates the first interpolated image P21 and the second interpolated image P22 so that the first object Ob11 moves linearly from bottom to top over time. Also, because a circular second object Ob12 included in image P1 moves from top to bottom from the start point to the end point, the generation unit 222a generates the first interpolated image P21 and the second interpolated image P22 so that the second object Ob12 moves linearly from top to bottom over time.

[0091] As described above, in the first example, user A1 specifies the first image P11 that is the starting point of the dynamic light-emitting pattern B12 and the second image P12 that is the end point, and one or more missing interpolated images P2 are automatically generated, which makes it easy to reduce the amount of work required to generate the dynamic light-emitting pattern B12.

[0092] In the second example, the acquisition unit 221 further acquires one or more third images that represent one or more intermediate points between the start point and end point of the dynamic light-emitting pattern B12. In other words, in the second example, the one or more images P1 further include one or more third images. For example, the user A1 can operate the control terminal 3 to place an additional image P1 between the first image P11 and the second image P12 on the timeline TL1, thereby inputting a designation of the third image.

[0093] The generation unit 222a then generates a dynamic emission pattern B12 further based on one or more third images. That is, in the second example, similar to the first example, when generating the dynamic emission pattern B12, the generation unit 222a generates one or more interpolated images P2 corresponding to one or more missing frames among all frames of the dynamic emission pattern B12. The generation unit 222a then generates a dynamic emission pattern B12 that starts from the first image P11, passes through one or more interpolated images P2 and one or more third images, and reaches the second image P12 over time. In the second example, the one or more interpolated images P2 generated by the generation unit 222a include, for example, in the case where there is one third image, one or more interpolated images P2 included between the first image P11 and the third image, and one or more interpolated images P2 included between the third image and the second image P12.

[0094] As described above, in the second example, user A1 specifies one or more third images that are one or more intermediate points of the dynamic light emission pattern B12, and one or more interpolated images P2 that are missing in the process of passing through one or more third images are automatically generated, making it easier to generate a dynamic light emission pattern B12 that specifies more complex movements.

[0095] In the third example, the acquisition unit 221 further acquires a function that specifies changes in one or more images P1 over time. Here, the function may include, for example, a function that uses each feature (e.g., size, etc.) of one or more objects Ob1 as a variable, and may include a function that indicates a linear change, such as a linear function, as well as a function that indicates a nonlinear change, such as a quadratic function. For example, user A1 can operate the control terminal 3 to select one of multiple functions or to input a string or expression that indicates a function, thereby specifying the function. User A1 may also specify a function for each feature possessed by object Ob1. For example, user A1 may specify a linear function for the size of object Ob1 and a quadratic function for the position of object Ob1.

[0096] Then, the generation unit 222a generates a dynamic light emission pattern B12 based on the function acquired by the acquisition unit 221. That is, in the third example, the generation unit 222a generates a dynamic light emission pattern B12 that changes the feature amount according to the acquired function, rather than simply changing the feature amount linearly as in the first and second examples. For example, when it is specified that the size of the object Ob1 be changed according to a quadratic function, the generation unit 222a generates a dynamic light emission pattern B12 in which the size of the object Ob1 changes according to the quadratic function in the process from the first image P11 to the second image P12.

[0097] As described above, in the third example, when user A1 specifies a function that indicates the change in one or more images P1 over time, a dynamic light emission pattern B12 is automatically generated in which one or more images P1 change according to the function, making it easier to generate a dynamic light emission pattern B12 that specifies more complex movements.

[0098] The control unit 223 controls one or more light sources 12 to irradiate the dynamic light emission pattern B12 generated by the generation unit 222a from the one or more light sources 12. In the embodiment, the control unit 223 controls the light source 12, which is an array of a plurality of individually controllable light emitting elements 121, to irradiate the dynamic light emission pattern B12 from the light source 12.

[0099] Control by the control unit 223 will be specifically described below with reference to FIG. 13 . FIG. 13 is an explanatory diagram of control by the control unit 223 of the lighting control system 2 according to the embodiment. In FIG. 13 , a grid represents a plurality of light-emitting elements 121 arranged in a two-dimensional array. The grid shown in FIG. 13 roughly matches the size of each image P1. In other words, the control unit 223 normalizes each image P1 so that the size of the two-dimensional array in which the plurality of light-emitting elements 121 are arranged roughly matches the size of each image P1. This results in a one-to-one correspondence between the plurality of pixels included in each image P1 and the plurality of light-emitting elements 121 in the two-dimensional array. For example, the pixel in the upper left corner of each image P1 corresponds to the light-emitting element 121 in the upper left corner of the two-dimensional array.

[0100] The control unit 223 identifies, for each frame based on the dynamic light-emitting pattern B12, two or more light-emitting elements 121 corresponding to two or more pixels constituting one or more objects Ob1 in each image P1. In the example shown in FIG. 13 , the two or more light-emitting elements 121 are identified by identifying one or more light-emitting elements 121 corresponding to one or more pixels constituting a rectangular first object Ob11 in the first image P11 and one or more light-emitting elements 121 corresponding to one or more pixels constituting a circular second object Ob12. Furthermore, the control unit 223 determines the luminance of each of the two or more light-emitting elements 121 based on the pixel values ​​of the two or more pixels for each frame. Then, the control unit 223 generates control information based on the identified two or more light-emitting elements 121 and the luminance of each of the two or more light-emitting elements 121.

[0101] The control information includes information regarding the on / off and emission intensity of each of the plurality of light-emitting elements 121 for each frame. For example, the emission intensity can be expressed as an 8-bit numerical value ranging from 0% (off) to 100% (on at the highest emission intensity). The control unit 223 generates, as control information, array data including data representing the emission intensity of each light-emitting element 121 in 8 bits for each row of the plurality of light-emitting elements 121. Here, the control unit 223 generates, as control information, array data in which the emission intensity of two or more of the light-emitting elements 121 is greater than 0% and the emission intensity of the remaining light-emitting elements 121 is 0%.

[0102] Then, the control unit 223 outputs the generated control information to the drive unit 13. The drive unit 13 individually drives the plurality of light-emitting elements 121 in accordance with the received control information. Here, the drive unit 13 turns on only the two or more light-emitting elements 121 for each frame and turns off the remaining light-emitting elements 121. As a result, a dynamic light-emitting pattern B12 is emitted from the light source 12, and the illumination light emitted from the light source 12 is irradiated onto, for example, a wall surface, thereby forming an image of the dynamic light-emitting pattern B12 on the wall surface.

[0103] [Control Terminal] As shown in FIG. 10, the control terminal 3 includes a display unit 31, an input receiving unit 32, a processing unit 33, and a transmission unit 34.

[0104] The display unit 31 displays one or more images P1 designated by the user A1. The display unit 31 is realized by, for example, a liquid crystal display panel or an organic EL (Electroluminescence) display panel.

[0105] The input accepting unit 32 accepts an input from the user A1 specifying one or more images P1. For example, the input accepting unit 32 accepts an input specifying one or more images P1 by reading one or more images P1 stored in an external storage device, such as a USB (Universal Serial Bus) memory, prepared by the user A1 from the external storage device. Alternatively, for example, the input accepting unit 32 may accept an input specifying one or more images P1 by downloading one or more images P1 via the Internet, as operated by the user A1. Alternatively, for example, the input accepting unit 32 may accept an input specifying one or more images P1 by reading one or more images P1 from a plurality of images pre-stored in the memory of the control terminal 3, as operated by the user A1.

[0106] In the embodiment, the processing unit 33 converts each of the one or more images P1 received by the input receiving unit 32 into one or more lighting parameters, and transmits the converted one or more lighting parameters from the transmission unit 34 to the communication unit 21 of the lighting control system 2. Note that the processing unit 33 may also transmit the one or more images P1 received by the input receiving unit 32 from the transmission unit 34 to the communication unit 21 of the lighting control system 2 without converting them into one or more lighting parameters.

[0107] FIG. 14 is a diagram illustrating an example of use of the control terminal 3 according to the embodiment. In FIG. 14 , the area surrounded by a dashed line represents the range that can be illuminated by the light source 12. Also, in FIG. 14 , an illumination pattern corresponding to a first image P11 is imaged on the wall surface, but in reality, a dynamic illumination pattern B12 is imaged on the wall surface (see FIG. 15 ). As shown in FIG. 14 , when a user A1 inputs designation of one or more images P1 on the control terminal 3, a dynamic illumination pattern B12 is generated based on the one or more images P1, and the generated dynamic illumination pattern B12 is irradiated from the light source 12. As a result, a dynamic illumination pattern B12 based on the illumination light is imaged on the wall surface.

[0108] Fig. 15 is a diagram showing an example of a dynamic light emission pattern B12 formed on a wall surface. Fig. 15 shows the dynamic light emission pattern B12 in which a light emission pattern corresponding to a first image P11, a light emission pattern corresponding to a first interpolated image P21, a light emission pattern corresponding to a second interpolated image P22, and a light emission pattern corresponding to a second image P12 are successively formed on the wall surface.

[0109] [Operation] The operation of the lighting control system 2 according to the embodiment will be described below with reference to Fig. 16. Fig. 16 is a flowchart showing an example of the operation of the lighting control system 2 according to the embodiment.

[0110] First, the acquisition unit 221 of the lighting control system 2 acquires one or more images P1 (S11). In the embodiment, as already described above, when the user A1 performs an input to specify one or more images P1 on the control terminal 3, one or more lighting parameters corresponding to the one or more images P1 are transmitted from the control terminal 3 to the communication unit 21 of the lighting control system 2. The acquisition unit 221 then acquires the one or more lighting parameters received by the communication unit 21, thereby indirectly acquiring the one or more images P1. Here, the acquisition unit 221 acquires, as the one or more images P1, a first image P11 that is the starting point of the dynamic light emission pattern B12 and a second image P12 that is the end point of the dynamic light emission pattern B12.

[0111] Next, the generation unit 222a of the lighting control system 2 generates a dynamic light emission pattern B12 to be emitted from one or more light sources 12 (one light source 12 in this case) based on the one or more images P1 acquired by the acquisition unit 221 (S21). In the embodiment, as already described, when generating the dynamic light emission pattern B12, the generation unit 222a generates one or more interpolated images P2 corresponding to one or more missing frames among all frames of the dynamic light emission pattern B12. Then, the generation unit 222a generates the dynamic light emission pattern B12 that starts from the first image P11, passes through one or more interpolated images P2 over time, and reaches the second image P12.

[0112] Then, the control unit 223 of the lighting control system 2 controls one or more light sources 12 (here, one light source 12) to emit the dynamic light emission pattern B12 generated by the generation unit 222a from the one or more light sources 12 (S31). In the embodiment, as already described, the control unit 223 generates control information based on the dynamic light emission pattern B12 generated by the generation unit 222a and outputs the generated control information to the drive unit 13. The drive unit 13 individually drives the multiple light-emitting elements 121 of the light source 12 in accordance with the received control information. As a result, the dynamic light emission pattern B12 is emitted from the light source 12, and the illumination light emitted from the light source 12 is irradiated onto, for example, a wall surface, so that the dynamic light emission pattern B12 is formed on the wall surface.

[0113] [Advantages] The advantages of the lighting control system 2 (lighting control method) according to the embodiment will be described below. As described above, the lighting control system 2 according to the embodiment automatically generates a dynamic light emission pattern B12 based on one or more acquired images P1, so there is no need to prepare all of the images P1 required for the dynamic light emission pattern B12. Therefore, the lighting control system 2 according to the embodiment has the advantage that it is easy to reduce the number of steps required to generate the dynamic light emission pattern B12 to be irradiated from one or more light sources 12.

[0114] For example, in conventional lighting effects, when using a dynamic light emission pattern, a video that is the basis for the dynamic light emission pattern must be prepared in advance. In contrast, with the lighting control system 2 according to the embodiment, if several static light emission patterns are prepared in advance, the dynamic light emission pattern B12 is automatically generated based on these static light emission patterns, thereby reducing the amount of work required to generate the dynamic light emission pattern B12.

[0115] In addition, in conventional lighting effects, when a performance using a dynamic light emission pattern is performed, one or more lighting devices must be manually moved to trace a moving image. In contrast, the lighting control system 2 according to the embodiment automatically controls the illumination of the generated dynamic light emission pattern B12 from one or more light sources 12, which has the advantage of easily reducing the amount of work required to perform a performance using the dynamic light emission pattern B12.

[0116] [Other Modifications, etc.] Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-described embodiments.

[0117] In the above embodiment, the processing unit 33 of the control terminal 3 converts the point cloud data indicating the trajectory B1 detected by the detection unit 32 into an image and transmits the converted image to the lighting system 100. However, this is not limited to this. For example, the processing unit 33 of the control terminal 3 may execute a process (transmission step) of transmitting the point cloud data indicating the trajectory B1 detected by the detection unit 32 to the lighting system 100 without converting it into an image. In this case, the control unit 222 of the lighting control system 2 converts the received point cloud data into an image and causes the light source 12 to emit a light-emitting pattern C1 indicating the trajectory B1 based on the converted image. In this aspect, as in the embodiment, it is expected to have the effect of reducing the delay time from when the input of the trajectory B1 is received until the light source 12 emits light.

[0118] In the above embodiment, the control unit 222 of the lighting control system 2 may perform anti-aliasing processing on the trajectory data acquired by the acquisition unit 221. In this case, edges in the image indicated by the trajectory B1 become less noticeable, and the contour of the light emission pattern C1 tends to become smoother.

[0119] In the above embodiment, the processing unit 33 of the control terminal 3 may draw a grid on the display unit 31. This aspect makes it easier for the user A1 to draw the trajectory B1 on the display unit 31. Furthermore, the control unit 222 of the lighting control system 2 may cause the light source 12 to emit, in addition to the light emitting pattern C1, a grid pattern corresponding to the grid drawn on the display unit 31. This aspect makes it easier for the user A1 to draw the trajectory B1 while looking at a wall surface or the like, without looking at the display unit 31 of the control terminal 3.

[0120] In the above embodiment, the light source 12 is a light source that emits white light, but this is not limited to this. For example, the light source 12 may be a light source that emits light of a color other than white. Furthermore, the light source 12 is not limited to a light source that emits monochromatic light, but may be a light source 12 that has a color adjustment function that allows it to emit light of various colors by being controlled by the lighting control system 2.

[0121] In the above embodiment, the lighting control system 2 controls one light source 12, but may control multiple light sources 12. In this case, the light emission patterns emitted from the multiple light sources 12 can be projected onto a wall surface or the like as a single light emission pattern C1, so that the light emission pattern C1 showing a relatively large locus B1 can be projected.

[0122] In the above embodiment, the light emission intensity of each of the plurality of light emitting elements 121 included in the light source 12 is adjustable, but this is not limiting. For example, each of the plurality of light emitting elements 121 may be controlled only to be turned on and off, and the light emission intensity when turned on may always be constant.

[0123] In the above embodiment, the heat sink 14 is provided integrally with the housing 11, but this is not limiting. For example, the heat sink 14 may be separate from the housing 11 and fixed to the housing 11 by a predetermined means (for example, welding, adhesive bonding, or fastening with bolts). In this case, the housing 11 may be made of, for example, resin.

[0124] In the above embodiment, the wireless communication between the lighting device 10 and the control terminal 3 may be short-range wireless communication such as ZigBee (registered trademark) or BLE (Bluetooth (registered trademark) Low Energy). The wireless communication method (communication standard) may be communication via a wide area communication network such as the Internet. The communication between the lighting device 10 and the control terminal 3 may be wired communication. The wired communication may be, for example, communication using power line communication (PLC) or a wired LAN.

[0125] In the above embodiment, the control terminal 3 is not included in the components of the lighting system 100, but it may be included in the components of the lighting system 100.

[0126] In the above embodiment, lighting control system 2 is processing unit 22 included in lighting device 10, but this is not limited to this. For example, lighting control system 2 may be processing unit 33 included in control terminal 3. Furthermore, lighting control system 2 may be made up of processing unit 33 included in control terminal 3 and processing unit 22 included in lighting device 10.

[0127] Furthermore, in the above embodiment, the series of processes executed by lighting control system 2 is not limited to being executed by processing unit 22 of lighting device 10 and processing unit 33 of control terminal 3, but may also be executed by, for example, an external device other than lighting device 10 and control terminal 3. In this case, the external device may be equipped with, for example, an AI (Artificial Intelligence) model, and the series of processes described above may be executed by the AI ​​model. In this aspect, the computational load on processing unit 22 of lighting device 10 or processing unit 33 of control terminal 3 can be reduced, and therefore, compared to when the series of processes described above are executed by processing units 22, 33, it is expected that the delay time from when input of trajectory B1 is received until light source 12 emits light can be reduced.

[0128] In the above-described embodiment, the processing performed by a specific processing unit may be performed by another processing unit, the order of multiple processing operations may be changed, or multiple processing operations may be performed in parallel.

[0129] In the above embodiment, the lighting system 100 is realized as one lighting device 10, but this is not limiting. For example, the lighting system 100 may be realized as a plurality of devices.

[0130] Furthermore, for example, the processes described in the above embodiments may be realized by centralized processing using a single device (system), or may be realized by distributed processing using multiple devices. Furthermore, the processor that executes the program corresponding to the processes described in the above embodiments may be a single processor or multiple processors. In other words, centralized processing or distributed processing may be performed.

[0131] In the above embodiment, all or some of the components such as the control unit 222 and the generation unit 222a may be configured with dedicated hardware, or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU (Central Processing Unit) or a processor reading and executing a software program recorded on a recording medium such as a HDD (Hard Disk Drive) or semiconductor memory.

[0132] Furthermore, the components such as the control unit 222 and the generation unit 222a may be configured with one or more electronic circuits. Each of the one or more electronic circuits may be a general-purpose circuit or a dedicated circuit.

[0133] The one or more electronic circuits may include, for example, a semiconductor device, an IC, or an LSI. The IC or LSI may be integrated on a single chip or on multiple chips. Although the IC or LSI is referred to here as an IC or LSI, the name may vary depending on the degree of integration, and may be called a system LSI, a VLSI (Very Large Scale Integration), or an ULSI (Ultra Large Scale Integration). Also, an FPGA that is programmed after the LSI is manufactured can be used for the same purpose.

[0134] Furthermore, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, or a computer program. Alternatively, the present invention may be realized as a computer-readable non-transitory recording medium such as an optical disk, a HDD, or a semiconductor memory on which the computer program is stored. Alternatively, the present invention may be realized as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0135] In addition, the present invention also includes forms obtained by applying various modifications to the above embodiments that a person skilled in the art would think of, and forms realized by arbitrarily combining the components and functions of the above embodiments within the scope of the present invention.

[0136] (Summary) As described above, the above embodiment is a lighting control method executed by one or more processors, and includes an acquisition step of acquiring one or more pieces of data, and a generation step of generating a dynamic light emission pattern B12 to be irradiated from one or more light sources 12 based on the acquired one or more pieces of data.

[0137] Such a lighting control method has the advantage that it is easy to reproduce a dynamic light emission pattern drawn by the user with lighting.

[0138] Furthermore, for example, the lighting control method according to the above embodiment is a lighting control method executed by one or more processors, and includes an acquisition step (S1) and a control step (S2). In the acquisition step, trajectory data indicating a trajectory B1 is acquired. In the control step, based on the acquired trajectory data, a light source 12 including a plurality of individually controllable light-emitting elements 121 arranged in an array is controlled to emit a light emission pattern C1 indicating the trajectory B1 from the light source 12.

[0139] According to such a lighting control method, for example, when a user A1 draws a trajectory B1 using the control terminal 3, trajectory data indicating the trajectory B1 is acquired and an illumination pattern C1 indicating the trajectory B1 is irradiated from the light source 12, which has the advantage that the trajectory B1 drawn by the user A1 can be easily reproduced by lighting.

[0140] Also, for example, in the lighting control method according to the above embodiment, in the first aspect, in the acquisition step, trajectory data is acquired by detecting the trajectory drawn by user A1 using a control terminal 3 having a detection unit 32 that detects the movement of user A1.

[0141] According to this lighting control method, an illumination pattern C1 indicating the trajectory B1 is emitted in real time from the light source 12 in response to the input of the trajectory B1 by the user A1, which has the advantage of making it easy to achieve lighting that gives the impression that the user A1 is drawing the trajectory B1 directly on a wall surface or the like.

[0142] Also, for example, in the second aspect of the lighting control method according to the above embodiment, the control terminal 3 executes a drawing step of drawing a trajectory B1 on the display unit 31 of the control terminal 3.

[0143] According to this lighting control method, the trajectory B1 drawn by the user A1 is displayed on the display unit 31, which has the advantage that the user A1 can easily understand what kind of trajectory B1 he or she has drawn.

[0144] Furthermore, for example, in the second or third aspect of the lighting control method according to the above-described embodiment, the control terminal 3 further executes a transmission step of compressing an image showing the trajectory B1 and transmitting the compressed image as trajectory data to the lighting system 100 (lighting device 10) having the light source 12. The detection step and the transmission step are controlled in a time-division manner according to the time required for each process.

[0145] Such a lighting control method has the advantage of easily reducing the delay time between when the control terminal 3 accepts input of the trajectory B1 by the user A1 and when the light source 12 emits illumination light. Furthermore, such a lighting control method has the advantage of preventing an incident in which the input of the trajectory B1 by the user A1 is not accepted during the waiting time between when the transmission step is executed and when the next transmission step is executed, making it easier for the user A1 to input the trajectory B1 smoothly and reducing stress for the user A1.

[0146] Furthermore, for example, in the lighting control method according to the above-described embodiment, in a fourth aspect, the detection step and the transmission step are performed so that the intervals at which the trajectory data is transmitted to the lighting system 100 (lighting device 10) are constant.

[0147] According to such a lighting control method, if the time required for processing in either the detection step or the transmission step becomes too long and the above interval is likely to be disrupted, the processing is abandoned and the next processing is executed, which has the advantage of making it easier to further reduce the above delay time.

[0148] Also, for example, in the lighting control method according to the above-described embodiment, in the fourth or fifth aspect, in the transmission step, the trajectory data is obtained by converting data in which some points have been thinned out from the point cloud data representing the trajectory B1 into an image, or by converting only the trajectory B1 drawn on the display unit 31 into an image.

[0149] According to such a lighting control method, the amount of trajectory data to be transmitted can be reduced, which has the advantage of making it easier to reduce the delay time.

[0150] Furthermore, for example, in the second or third aspect of the lighting control method according to the above-described embodiment, the control terminal 3 further executes a transmitting step of transmitting point cloud data indicating the trajectory B1 to the lighting system 100 (lighting device 10) having the light source 12. In the control step, the received point cloud data is converted into an image, and a light emission pattern C1 indicating the trajectory B1 is irradiated from the light source 12 based on the converted image.

[0151] According to such a lighting control method, there is an advantage that the delay time can be easily reduced because the control terminal 3 does not need to convert the point cloud data into an image.

[0152] Furthermore, for example, in any one of the second to seventh aspects of the lighting control method according to the above-described embodiments, the acquisition step acquires parameters related to the trajectory B1 by receiving an input specifying the parameters at the control terminal 3. The control step causes the light source 12 to irradiate the light emission pattern C1 based on the acquired parameters.

[0153] According to such a lighting control method, the lighting pattern C1 can be changed by specifying parameters related to the trajectory B1 drawn by the user A1, which has the advantage that the lighting pattern C1 can be adjusted without the user A1 having to draw the trajectory B1 again.

[0154] Also, for example, in the lighting control method according to the above embodiment, in an eighth aspect, the parameters include at least one of the line type of the locus B1, the shape of the locus B1, the brightness of the locus B1, the position of the locus B1, and the size of the locus B1.

[0155] Such a lighting control method has the advantage of being able to adjust at least one of the line type, shape, brightness, position, and size of the light-emitting pattern C1 that indicates the trajectory B1 drawn by the user A1.

[0156] Also, for example, in the lighting control method according to the above-described embodiment, in any one of the second to ninth aspects, the control step causes the light source 12 to emit an illumination pattern C1 indicating a trajectory B1, at least a portion of which is dimmed or erased in accordance with predetermined conditions.

[0157] According to such an illumination control method, at least a part of the light emitting pattern C1 is dimmed or erased, which has the advantage that it is easy to prevent the space illuminated by the light emitting pattern C1 from becoming too bright.

[0158] Furthermore, for example, in the lighting control method according to the above-described embodiment, in a tenth aspect, the predetermined condition includes the elapsed time from the point in time when the light source 12 emits the light emission pattern C1.

[0159] According to such a lighting control method, the light emitting pattern C1 is gradually dimmed or erased over time, which has the advantage that it is easy to create a fleeting effect such as fireworks.

[0160] Also, for example, in the lighting control method according to the above-described embodiment, in the 10th or 11th aspect, the specified condition includes receiving an input at the control terminal 3 specifying the location of the trajectory B1 to be dimmed or erased.

[0161] According to this lighting control method, the part of the light-emitting pattern C1 specified by the user A1 can be dimmed or erased, which has the advantage that the user A1 can easily have the light source 12 emit the desired light-emitting pattern C1.

[0162] Also, for example, in the lighting control method according to the above-described embodiment, in any one of the second to twelfth aspects, the control step causes the light source 12 to emit an illumination pattern C1 showing a trajectory B1, at least a portion of which deforms or changes color over time.

[0163] According to such a lighting control method, at least a part of the light emitting pattern C1 is deformed or discolored over time, which has the advantage of making it easy to create a variety of effects.

[0164] Furthermore, for example, the program according to the above-described embodiment causes one or more processors to execute the lighting control method according to any one of the first to thirteenth aspects.

[0165] Such a program has the advantage of being able to achieve the same effect as any one of the first to twelfth lighting control methods.

[0166] Furthermore, for example, the lighting control system 2 according to the above embodiment includes an acquisition unit 221 and a control unit 222. The acquisition unit 221 acquires trajectory data indicating a trajectory B1. The control unit 222 controls the light source 12, which is an array of a plurality of individually controllable light-emitting elements 121, based on the trajectory data acquired by the acquisition unit 221, to cause the light source 12 to emit a light emission pattern C1 indicating the trajectory B1.

[0167] According to such a lighting control system 2, when a user A1 draws a trajectory B1 using, for example, the control terminal 3, trajectory data indicating the trajectory B1 is acquired and an illumination pattern C1 indicating the trajectory B1 is irradiated from the light source 12, which has the advantage that the trajectory B1 drawn by the user A1 can be easily reproduced by lighting.

[0168] Furthermore, the lighting system 100 according to the above embodiment includes the lighting control system 2 according to the fifteenth aspect, a light source 12, and a housing 11 that houses the lighting control system 2 and the light source 12.

[0169] According to such a lighting system 100, when a user A1 draws a trajectory B1 using, for example, the control terminal 3, trajectory data indicating the trajectory B1 is acquired and an illumination pattern C1 indicating the trajectory B1 is irradiated from the light source 12, which has the advantage that the trajectory B1 drawn by the user A1 can be easily reproduced by lighting.

[0170] In the above embodiment, the generation unit 222a may generate the dynamic illumination pattern B12 by calculating changes over time in the feature amounts of one or more objects Ob1 (in other words, the feature amounts possessed by each of one or more images P1). For example, the generation unit 222a may generate a dynamic illumination pattern B12 in which the size of one object Ob1 changes over time by calculating changes over time in the size of the object Ob1. In this aspect, it is not necessary to generate one or more images corresponding to one or more missing frames out of all the frames of the dynamic illumination pattern B12, which makes it easier to reduce the processing load.

[0171] In the above embodiment, the change over time of one or more images P1 in the dynamic lighting pattern B12 may be a continuous change or a discrete change. For example, in the dynamic lighting pattern B12, the position of an arbitrary object Ob1 may be different for each frame.

[0172] In the above embodiment, the generation unit 222a may generate the dynamic light emission pattern B12 from one image P1. For example, when the acquisition unit 221 acquires one image P1 and a function indicating changes in the image P1 over time, the generation unit 222a may generate the dynamic light emission pattern B12 so that the image P1 changes in accordance with the function.

[0173] In the above embodiment, the control unit 223 of the lighting control system 2 may perform anti-aliasing processing on the one or more images P1 acquired by the acquisition unit 221. In this case, edges in each of the one or more images P1 become less noticeable, which tends to smooth the contours of the dynamic light emission pattern B12.

[0174] In the above embodiment, the UI (User Interface) for specifying and inputting one or more images P1 in the control terminal 3 may be a UI dedicated to the lighting control system 2, or may be a general-purpose UI using a web browser or the like. The web browser is, for example, Microsoft Edge (registered trademark), Google Chrome (registered trademark), or Safari (registered trademark).

[0175] When the lighting control system 2 is configured only by the processing unit 22 of the lighting device 10 as in the embodiment, there is an advantage that the amount of communication traffic can be easily reduced because there is no need to send data representing the dynamic light emission pattern B12 from the control terminal 3 to the communication unit 21 of the lighting device 10. In addition, in this case, when a relatively long dynamic light emission pattern B12 is used, for example, there is no need to store data representing the dynamic light emission pattern B12 in the control terminal 3, which has the advantage that the amount of storage space consumed by the control terminal 3 can be easily reduced.

[0176] Furthermore, if the lighting control system 2 is configured only with the processing unit 33 of the control terminal 3, it is expected that the speed of calculations can be increased by using a graphics acceleration function provided by the hardware, for example, by using an animation API (Application Programming Interface) in a web browser when generating one or more interpolated images P2. Note that the process of generating the dynamic light emission pattern B12 is executed by a processing mechanism separate from the process of accepting input specifying one or more images P1, so the screen displayed on the display unit 31 is less likely to be locked.

[0177] Furthermore, when the lighting control system 2 is configured with both the processing unit 22 of the lighting device 10 and the processing unit 33 of the control terminal 3, the generated dynamic light emission pattern B12 can be displayed on the display unit 31 of the control terminal 3, and the dynamic light emission pattern B12 can be irradiated from one or more light sources 12. This has the advantage that the user A1 can easily check whether the dynamic light emission pattern B12 displayed on the display unit 31 of the control terminal 3 and the dynamic light emission pattern B12 imaged on the wall surface appear to match.

[0178] Furthermore, in the above embodiment, the series of processes executed by lighting control system 2 is not limited to being executed by processing unit 22 of lighting device 10 and processing unit 33 of control terminal 3, but may also be executed by, for example, an external device other than lighting device 10 and control terminal 3. In this case, the external device may be equipped with, for example, an AI (Artificial Intelligence) model, and the series of processes described above may be executed by the AI ​​model. In this aspect, the computational load on processing unit 22 of lighting device 10 or processing unit 33 of control terminal 3 can be reduced, and therefore, compared to when the series of processes described above are executed by processing units 22, 33, it is expected that the delay time from when input specifying one or more images P1 is received until one or more light sources 12 emit light can be reduced.

[0179] The AI ​​model may also recognize an object included in the one or more acquired images P1 and generate one or more interpolated images P2 according to the characteristics of the recognized object, thereby generating a dynamic light emission pattern B12. For example, if the object included in the one or more images P1 is a bird, the AI ​​model may generate one or more interpolated images P2 depicting the bird flapping its wings. For example, if the object included in the one or more images P1 is a person, the AI ​​model may generate one or more interpolated images P2 depicting the person walking.

[0180] For example, the above-described processing is performed according to the following procedure. First, the AI ​​model for image analysis recognizes an object contained in one or more acquired images P1. Second, depending on the recognition result of the AI ​​model for image analysis, the AI ​​model for generation corresponding to the object is called. For example, if the recognition result indicates a bird, the AI ​​model for generation corresponding to the bird is called. Third, the AI ​​model for generation generates one or more interpolated images P2. Note that the AI ​​model for image analysis and the AI ​​model for generation may be integrated into a single AI model.

[0181] By having the AI ​​model perform the above-mentioned processing, the workload on the creator of content that includes objects, for example, is reduced, making it easier for the creator to enjoy their work, and also has the advantage of increasing the enjoyment of creating the second image P12, which is the end point of the dynamic light-emitting pattern B12.

[0182] REFERENCE SIGNS LIST 100 Lighting system 11 Housing 12 Light source 121 Light-emitting element 2 Lighting control system 221 Acquisition unit 222, 223 Control unit 222a Generation unit 3 Control terminal 31 Display unit 32 Detection unit A1 User B1 Trajectory B12 Dynamic light-emitting pattern C1 Light-emitting pattern Ob1 Object P1 Image P11 First image P12 Second image P2 Interpolated image

Claims

1. A lighting control method executed by one or more processors, comprising: an acquisition step of acquiring one or more pieces of data; and a generation step of generating a dynamic lighting pattern to be irradiated from one or more light sources based on the acquired one or more pieces of data.

2. A lighting control method as claimed in claim 1, comprising: an acquisition step of acquiring trajectory data indicating a trajectory; and a control step of generating an illumination pattern indicating the trajectory by controlling a light source comprising an array of a plurality of individually controllable light-emitting elements based on the acquired trajectory data, and causing the light source to irradiate the generated illumination pattern.

3. A lighting control method as described in claim 2, wherein in the acquisition step, the trajectory data is acquired by detecting the trajectory drawn by the user using a control terminal having a detection unit that detects the user's movement.

4. The lighting control method according to claim 3, wherein the control terminal executes a drawing step of drawing the trajectory on a display unit of the control terminal.

5. A lighting control method as claimed in claim 3 or 4, wherein the control terminal further executes a transmission step of compressing an image showing the trajectory and transmitting the compressed image as the trajectory data to a lighting system having the light source, and wherein the detection step of detecting the trajectory drawn by the user and the transmission step are controlled in a time-division manner according to the time required for each process.

6. The lighting control method according to claim 5, wherein the detection step and the transmission step are performed so that the intervals at which the trajectory data is transmitted to the lighting system are constant.

7. The lighting control method according to claim 5, wherein in the transmitting step, the trajectory data is obtained by converting point cloud data indicating the trajectory, from which some points have been thinned out, into an image, or by converting only the trajectory drawn on the display unit into the image.

8. A lighting control method as claimed in claim 3 or 4, wherein the control terminal further executes a transmitting step of transmitting point cloud data indicating the trajectory to a lighting system having the light source, and in the control step, converting the received point cloud data into an image, and causing the light source to irradiate an illumination pattern indicating the trajectory based on the converted image.

9. A lighting control method as described in claim 3 or 4, wherein in the acquisition step, the control terminal receives an input specifying parameters related to the trajectory to acquire the parameters, and in the control step, the light source is caused to emit the light emission pattern based on the acquired parameters.

10. The lighting control method according to claim 9, wherein the parameters include at least one of a line type of the trajectory, a shape of the trajectory, a brightness of the trajectory, a position of the trajectory, and a size of the trajectory.

11. The lighting control method according to claim 3 or 4, wherein in the control step, the light source is caused to emit the light emission pattern indicating the locus, at least a portion of which is dimmed or erased in accordance with a predetermined condition.

12. The lighting control method according to claim 11, wherein the predetermined condition includes an amount of time that has elapsed since the light source emitted the light emission pattern.

13. The lighting control method according to claim 11, wherein the predetermined condition includes receiving an input at the control terminal specifying a portion of the trajectory to be dimmed or erased.

14. The lighting control method according to claim 3 or 4, wherein in the control step, the light source is caused to emit the light emitting pattern indicating the trajectory, at least a part of which changes shape or color with the passage of time.

15. A program causing one or more processors to execute the lighting control method according to claim 1 or 2.

16. A lighting control system comprising: an acquisition unit that acquires trajectory data indicating a trajectory; and a control unit that controls a light source comprising a plurality of individually controllable light-emitting elements arranged in an array based on the trajectory data acquired by the acquisition unit, thereby causing the light source to irradiate an emission pattern indicating the trajectory.

17. A lighting system comprising: the lighting control system according to claim 16; a light source; and a housing that houses the lighting control system and the light source.

18. A lighting control method as described in claim 1, which is executed by one or more processors, and includes: an acquisition step of acquiring one or more images; and a generation step of generating a dynamic light emission pattern to be irradiated from one or more light sources based on the acquired one or more images.

19. The lighting control method described in claim 18, wherein the one or more images include a first image that is a starting point of the dynamic light emission pattern and a second image that is an end point of the dynamic light emission pattern, and the generating step generates one or more interpolated images that change from the first image to the second image, and generates the dynamic light emission pattern based on the first image, the one or more interpolated images, and the second image.

20. The lighting control method described in claim 19, wherein the one or more images further include one or more third images which are one or more intermediate points between the starting point and the end point of the dynamic lighting pattern, and in the generating step, the dynamic lighting pattern is generated further based on the one or more third images.

21. A lighting control method according to any one of claims 18 to 20, wherein the acquisition step further acquires a function that specifies changes in the one or more images over time, and the generation step generates the dynamic lighting pattern based on the acquired function.

22. A lighting control method according to any one of claims 18 to 20, wherein in the generating step, the dynamic light emission pattern is generated by calculating changes over time in features possessed by each of the one or more images.

23. The lighting control method according to any one of claims 18 to 20, wherein the one or more images include a moving image repeating a certain pattern.

24. The lighting control method according to any one of claims 18 to 20, further comprising a control step of controlling the one or more light sources to irradiate the generated dynamic light emission pattern from the one or more light sources.

25. The lighting control method according to claim 24, wherein the one or more light sources are a single light source having a plurality of light-emitting elements arranged in an array, the light being individually controllable.

26. A program causing one or more processors to execute the lighting control method according to any one of claims 18 to 20.

27. A lighting control system comprising: an acquisition unit that acquires one or more images; and a generation unit that generates a dynamic light pattern to be irradiated from one or more light sources based on the acquired one or more images.

28. A lighting system comprising: the lighting control system according to claim 27; one or more light sources; and a housing that houses the lighting control system and the one or more light sources, wherein the one or more light sources are a single light source having a plurality of light-emitting elements arranged in an array, the light sources being individually controllable.

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