Light panel assembly

Abstract

A method is disclosed for efficient installation of light panel assemblies comprising a plurality of light panel tiles. The method enables light panel tiles to be mounted at an arbitrary position and orientation with respect to the assembly without causing distortion to an image intended for display on said assembly. The method involves receiving image data of the assembly, creating a contour map of said assembly, generating a puzzle image, displaying the puzzle image on the assembly, receiving image data of the displayed puzzle, applying a puzzle solving algorithm to said puzzle image data, and generating a mapping function between a logical address of a tile to a physical address of a tile. Whereby an image displayed on the tiles corresponds to an intended image.

Description

[0001] 2024PF80391

[0002] Light panel assembly

[0003] FIELD OF THE INVENTION

[0004] The present invention generally relates to the field of light panel assemblies. More specifically, the present invention is related to a method for efficient installation of light panel assemblies.

[0005] BACKGROUND OF THE INVENTION

[0006] In the field of light panel assemblies, several light panels, each often comprising a plurality of light sources, are mounted in a group in order to collectively display an image. Each light panel often comprises several light sources which display a portion of an image which, together with the other panels in the assembly form a larger, “collective” image. By grouping light panels together in a light panel assembly, a type of screen can be built, this screen can take on practically any shape depending on the placements of the individual tiles, which opens a plethora of possibilities. Light panel assemblies can “wrap” images around edges of a building or room by installing panels on both walls associated with said edge. Light panels can be installed in such a way that the displayed image has “gaps”, where the is no panel to display a part of the image. This can for example be used to create a screen on a wall, where the screen leaves a hole / gap for a window or door. While light panel assemblies open countless possibilities for both practical and creative ways of displaying images, there are challenges associated with their installation. Each light panel must be correctly positioned and oriented with respect every other light panel forming part of the assembly for each portion of the image to be displayed at the correct location and orientation with respect to the image portions, in order for the collective image to be displayed correctly. This can be cumbersome for a person tasked with installing the light panel assembly.

[0007] US2018 / 279446A1 discloses a method of mapping image segments to corresponding lighting device shapes.

[0008] SUMMARY OF THE INVENTION

[0009] It is thus of interest to provide a method that is capable of overcoming drawbacks of prior art methods and devices.2024PF80391

[0010] 2

[0011] This and other objects are achieved in a first aspect by providing a method of determining a mapping function for enabling an input light pattern to be displayed on a light panel assembly having the features of the appended independent claim. Preferred embodiments are defined in the appended dependent claims.

[0012] Hence, according to one aspect of the present invention there is provided a method of determining a mapping function for enabling an input light pattern to be displayed on a light panel assembly comprising a plurality of light panel tiles spatially arranged in relation to each other. Each tile comprises a physical address and is configured to be controlled via the physical address to emit light. The mapping function is configured to link a position and a logical address associated with each tile to the physical address of each respective tile. The method comprises obtaining a first digital image of the light panel assembly. Using the first digital image of the light panel assembly, a contour map of the tiles is determined, the contour map comprising tile contours corresponding to a respective tile. Based on the contour map, a determination is made of a specification of at least coordinates that define a respective position and extent of each tile contour and a respective logical address is assigned that represents each respective tile contour.

[0013] A puzzle pattern is generated based on a puzzle image using the contour map, the puzzle pattern comprising a plurality of puzzle pattern pieces. Each puzzle pattern piece corresponds to a respective tile contour and each puzzle pattern piece comprises a part of the puzzle pattern that is unique. A respective lighting characteristic is then generated that corresponds to each respective puzzle pattern piece. Each tile is then controlled such that each tile displays a lighting characteristic corresponding to a puzzle pattern piece.

[0014] A second digital image is then recorded of the light panel assembly and thereby obtaining an image of the puzzle pattern displayed on the light panel assembly.

[0015] A puzzle solving algorithm is then executed, using the image of the puzzle pattern together with the puzzle image. The puzzle solving algorithm is configured to determine the mapping function whereby the position and logical address of each respective tile contour of each tile is linked with the physical address of each tile such that the input light pattern can be displayed on the light panel assembly.

[0016] Such a method provides several advantages to the field of installing light panel assemblies, a procedure that is often referred to as “commissioning” of light panels. For example, an advantage is that tiles can be installed without having to take their location within the assembly or their orientation into account.2024PF80391

[0017] 3

[0018] These advantages will be better understood when comparing the invention to an example of a conventional installation procedure.

[0019] Conventional installation procedures usually start with designing the layout of the tiles forming part of the light panel assembly (e.g. using pen and paper or a computer program). After that, a digital representation of the layout is created, the digital representation comprises information about the relative locations of the tiles as well as information about the relative location of the light sources (pixels) of the tiles. This representation serves as a basis for creating a light pattern representation of a digital image which can be displayed on the light panel assembly. This light pattern requires all light panels to be positioned at the right location within the predetermined light panel assembly design and to be oriented correctly with respect to said assembly. A person tasked with installing the assembly, referred to as “the installer” hereinafter, then mounts the panels according to a blueprint detailing where each tile is to be mounted with respect to the assembly. Since each tile needs to be mounted with a correct orientation at a specific place within the assembly, tiles need to be provided with markers to account for this. To verify that the assembly is mounted correctly, the installer can initiate the displaying of a test image. If the image is distorted due to tiles being mounted in the wrong place or with the wrong orientation, this may be identified at this stage. The installer then needs to dismount the incorrect pieces, adjust them and repeat the test. In an alternative conventional method, the light panel assembly is, partially or fully, pre-assembled in a factory. This facilitates the installation; however, it greatly increases shipping costs and is often not feasible due to logistical obstacles, especially if the assembly in question is large.

[0020] In contrast to such a prior art procedure, according to the present invention the mapping function may compensate for a misplaced tile by linking the position and logical address of each respective tile contour of each tile with the physical address of each tile such that the input light pattern can be displayed on the light panel assembly. This saves time and eliminates the need of adjusting misplaced tiles. Eliminating the need to adjust misplaced tiles reduces the handling of tiles whereby the risk of damaging or dirtying the tiles in connection with handling the tiles may be reduced. At the start of the method of the present invention, there is no predetermined design or blueprint that the installer needs to abide by, meaning that the layout of the light panel assembly may be designed at the same time as it is being mounted. Being able to design the light panel assembly at the same time as it is being installed enables quick and easy adjustments due to unforeseen obstacles in the mounting environment (for example noticing that a tile can’t be placed at a certain location because a2024PF80391

[0021] 4

[0022] doorknob might collide with the tile as a door opens). In the conventional method described above, such an unforeseen issue would involve redesigning the assembly, recreating the digital representation and restarting the installation of the tiles, whereas the design may be adapted as soon as the obstacle is noticed in the present invention. The present invention may reduce the number of trained people needed for the installation of the light panel assembly by automating the creation of a digital representation (contour map) of the light panel assembly, whereby installation costs may be reduced. Another advantage of the present invention is that the installer does not need to figure out the correct location of the tiles by themselves with the help of a test image and / or blueprint, instead, “tiles initially displaying a displaced or rotated puzzle piece” in the step involving controlling each tile such that each tile displays a lighting characteristic corresponding to a puzzle pattern piece, is automatically identified and adjusted by the algorithm, making the installation of the assembly faster and less cumbersome for the installer. Furthermore, once installed, the light panel assembly can be commissioned by a non-expert, which may reduce training costs, as well as facilitating changes relating to the commissioned light panel assembly.

[0023] In some embodiments, the method may further comprise selecting a puzzle image based on a spatial factor derived from the contour map.

[0024] Selecting a puzzle image based on a spatial factor derived from the contour map may, for example, ensure that the generated puzzle pieces are sufficiently large (well resolved) to be unique / distinguishable. By “spatial factor”, it is here meant substantially any factor relating to the geometry of the contour map.

[0025] In various embodiments, the spatial factor derived from the contour map is any one or more of eccentricity of the contour map, rotational variance of the contour map, deviation of the contour map from a standard shape, said standard shape comprising at least one of polygon, a circle and a line.

[0026] An advantage of selecting a puzzle image based on the eccentricity of the contour map may be that cropping of the puzzle image may be minimized, resulting in a larger portion of the puzzle image being used, and resulting in relatively larger (more well resolved) puzzle pieces which may be more easily recognizable by the puzzle solving algorithm. Similar advantages apply to the other two contour map characteristics.

[0027] In some embodiments of the present invention, the method may further comprises selecting a puzzle image based on an environmental parameter around the panel assembly. The environmental parameter may be any one or more of ambient light level,2024PF80391

[0028] 5

[0029] contrast between the colors in a displayed image, background or wall color, glare on panels caused by external light sources.

[0030] An advantage of selecting a puzzle image based on a background or wall color is that puzzle image with colors that are in stark contrast to the wall color can be selected thus facilitating the identification of puzzle pieces by the algorithm. Similar advantages apply to the other three environmental parameters.

[0031] In aspects, said first digital image may alternatively be phrased throughout the application as a first digital recording. In aspects, said second digital image may alternatively be phrased throughout the application as a second digital recording. In aspects, said first digital image may be a first video (image). In aspects, said second digital image may be a second video (image). Hence, the contour map may be obtained from a video. In embodiments, said first digital image may be a first panoramic image, and said second digital image may be a second panoramic image. Hence, the digital images may be panoramic images.

[0032] In some embodiments of the present invention, each tile may comprise single light source. In these embodiments, the step of controlling each tile such that each tile displays the lighting characteristic corresponding to each respective puzzle pattern piece involves providing each tile with a unique hue, saturation and brightness value.

[0033] This aspect ensures that the puzzle pattern pieces are unique in the case where each tile comprises only one pixel. If the puzzle pattern pieces were selected based on a puzzle image comprising fewer colors that the amount of tiles, at least two tiles would display the same color, making them not uniquely identifiable by the puzzle solving algorithm. It is therefore advantageous to assign each tile a unique hue, saturation and brightness value since the number of unique, distinguishable combinations of hue, saturation and brightness values by far exceeds the number of tiles in an assembly, ensuring that each tile can be provided with a unique hue, saturation and brightness value.

[0034] In aspects, the method may be performed by a controller, such as a lighting controller. Said (lighting) controller may be communicatively coupled to a camera device, wherein the (lighting) controller may obtain (receive or retrieve) said first digital image and said second digital image from said camera device. Further, in aspects, said method may be performed by a smart device comprising the controller and the camera device, such as e.g. a smartphone or tablet. Operatively coupled may mean wirelessly connected or wiredly connected, and able to communicate with one another.2024PF80391

[0035] 6

[0036] In various embodiments of the present invention, each tile comprises a M*N two-dimensional matrix of light emitting pixels. In these embodiments, the step of generating a puzzle pattern comprises generating puzzle pattern pieces which have a respective part of the puzzle pattern that is rotationally unique.

[0037] An advantage of ensuring that each puzzle piece is rotationally unique may be that a situation where a tile displays a first puzzle piece and another tile displays a rotated version of a second puzzle piece, where the first and second puzzle pieces appear identical to each other during the step involving controlling each tile such that each tile displays a lighting characteristic corresponding to a puzzle pattern piece is avoided. Such a uniqueness conflict could lead to incorrect matchings, whereby pieces of a displayed image are displayed on incorrect tiles with incorrect rotational orientation. Hence the need for rotational uniqueness of the puzzle pieces.

[0038] In various embodiments of the present invention, the method further comprises receiving the physical address of each tile together with tile data associated with each tile The tile data comprises at least one of tile dimensions, number of pixels, pixel resolution, pixel configuration, and tile shape.

[0039] An advantage of receiving this information may be that the puzzle pattern pieces may be grouped based on for example tile dimensions. The puzzle may then be subdivided in a smaller problem for the different group, which may improve the efficiency of said algorithm by reducing the amount of calculations and comparisons needed to solve the puzzle.

[0040] In some embodiments of the present invention, the step of generating a respective lighting characteristic corresponding to each respective puzzle pattern piece comprises using the tile data for matching a lighting characteristic corresponding to a puzzle pattern piece to a tile.

[0041] In aspects, said puzzle may be an arbitrary or random puzzle. In alternative aspects, said puzzle may be a predefined puzzle, such as a proprietary puzzle.

[0042] In addition to advantages analogous to those of the aspect relating to reception of tile data, using the tile data for matching a lighting characteristic to a puzzle pattern piece to a tile may facilitate the identification of light characteristics since the additional information helps rule out unreasonable matchings, for example regarding tile dimensions or number of pixels.

[0043] In some embodiments of the present invention, the method further comprises the steps of displaying, using the mapping function, a confirmation image on the light panel2024PF80391

[0044] 7

[0045] assembly, and obtaining a confirmation signal that indicates that the displayed confirmation image is correctly displayed.

[0046] An advantage these two additional steps is that a failsafe is implemented that may catch mistakes in the mapping function. The method may be restarted if the confirmation image was wrong, wherein the selection of the puzzle image may be adapted for improved puzzle piece identification according to any corresponding aspect mentioned above.

[0047] In some embodiments, the confirmation signal is issued by a human observer. An advantage of a human confirming the correct display of the confirmation image is that errors in the mapping function may be caught, especially if the confirmation image is selected based on being easily recognizable by a human observer. A human may catch mistakes that a computer algorithm misses.

[0048] In some embodiments, the confirmation signal is issued by a confirmation algorithm.

[0049] An advantage of having a confirmation algorithm confirming the correct display of the confirmation image may be that it, in some scenarios, is quicker and / or more accurate compared to having a human observer confirm correct display of the image. ’

[0050] In a further aspect there is provided a non-transitory computer-readable storage medium having stored thereon instructions for implementing the method as summarized above, when executed on a device having processing capabilities.

[0051] In yet a further aspect there is provided a system comprising circuitry configured to determining a mapping function for enabling an input light pattern to be displayed on a light panel assembly comprising a plurality of light panel tiles spatially arranged in relation to each other, each tile comprising a physical address and configured to be controlled via the physical address to emit light, said mapping function being configured to link a position and a logical address associated with each tile to the physical address of each respective tile, the system comprising a controller configured to:

[0052] obtain a first digital image of the light panel assembly,

[0053] determine, using the first digital image of the light panel assembly, a contour map of the tiles, said contour map comprising tile contours corresponding to a respective tile, determine, based on said contour map, a specification of at least coordinates that define a respective position and extent of each tile contour and assign a respective logical address that represents each respective tile contour,2024PF80391

[0054] 8

[0055] generate, based on a puzzle image, a puzzle pattern, using the contour map, said puzzle pattern comprising a plurality of puzzle pattern pieces where each puzzle pattern piece corresponds to a respective tile contour, and where each puzzle pattern piece comprises a part of the puzzle pattern that is unique,

[0056] generate a respective lighting characteristic corresponding to each respective puzzle pattern piece,

[0057] control each tile such that each tile displays a lighting characteristic corresponding to a puzzle pattern piece,

[0058] record a second digital image of the light panel assembly and thereby obtain an image of the puzzle pattern displayed on the light panel assembly,

[0059] execute a puzzle solving algorithm, using the image of the puzzle pattern together with the puzzle image, said puzzle solving algorithm being configured to determine the mapping function whereby the position and logical address of each respective tile contour of each tile is linked with the physical address of each tile such that the input light pattern can be displayed on the light panel assembly.

[0060] These further aspects provide effects and advantages that correspond to the effects and advantages described in connection with the method according to the first aspect. Said system may further comprise a camera device, wherein the controller obtains the first digital image and / or the second digital image from the camera device. Furthermore, in embodiments, system comprises the light panel assembly, wherein the controller is communicatively coupled to the light panel assembly and configured to control the light panel assembly.

[0061] In further aspects, a light panel assembly may comprise a plurality of the same light panel tiles, wherein each tile comprises the same contour. For example, each tile may be square with the same length and width dimensions. Such light panel assemblies may not require an contour map to be established first, and can operate with a less computationally costly algorithm. Hence, the invention provides, a method of determining a mapping function for enabling an input light pattern to be displayed on a light panel assembly comprising a plurality of light panel tiles spatially arranged in relation to each other, each tile comprising a physical address and configured to be controlled via the physical address to emit light, said mapping function being configured to link a position and a logical address associated with each tile to the physical address of each respective tile, wherein each tile comprises a same contour, the method comprising: obtaining a first digital image of the light panel assembly, determining, using the first digital image of the light panel assembly, a specification of at2024PF80391

[0062] 9

[0063] least coordinates that define a respective position and extent of each tile and assigning a respective logical address that represents each respective tile, generating, based on a puzzle image, a puzzle pattern, using the contour map, said puzzle pattern comprising a plurality of puzzle pattern pieces where each puzzle pattern piece corresponds to a respective tile, and where each puzzle pattern piece comprises a part of the puzzle pattern that is unique, generating a respective lighting characteristic corresponding to each respective puzzle pattern piece, controlling each tile such that each tile displays a lighting characteristic corresponding to a puzzle pattern piece, recording a second digital image of the light panel assembly and thereby obtaining an image of the puzzle pattern displayed on the light panel assembly, executing a puzzle solving algorithm, using the image of the puzzle pattern together with the puzzle image, said puzzle solving algorithm being configured to determine the mapping function whereby the position and logical address of each respective tile contour of each tile is linked with the physical address of each tile such that the input light pattern can be displayed on the light panel assembly. Thereby, advantages and / or embodiments applying to the method according to the invention may mutatis mutandis apply to said method according to the further aspect invention.

[0064] In yet further aspects of the invention, the invention may not only be implemented for a light panel assembly comprising a plurality of light panel tiles, but also for a light assembly comprising a plurality of light points. Said light point may for example be a lighting device, such as a Christmas light, or a linear light, or a light bulb, or a table lamp, or a spotlight, or a track lighting luminaire. Hence, throughout the application, the method according to the invention may be phrased with light panel assembly as Tight assembly’ and light panel tiles as Tight points’. Said Tight points’ may alternatively be phrased as Tight sources’. A puzzle based commissioning process, as described in the present application, may also work for such light points.

[0065] Hence, according to another aspect of the present invention there is provided a method of determining a mapping function for enabling an input light pattern to be displayed on a light assembly comprising a plurality of light points spatially arranged in relation to each other. Each tile comprises a physical address and is configured to be controlled via the physical address to emit light. The mapping function is configured to link a position and a logical address associated with each light point to the physical address of each respective light point. The method comprises obtaining a first digital image of the light assembly. Using the first digital image of the light assembly, a contour map of the light points is determined, the contour map comprising light point contours corresponding to a respective light point.2024PF80391

[0066] 10

[0067] Based on the contour map, a determination is made of a specification of at least coordinates that define a respective position and extent of each light point contour and a respective logical address is assigned that represents each respective light point contour.

[0068] A puzzle pattern is generated based on a puzzle image using the contour map, the puzzle pattern comprising a plurality of puzzle pattern pieces. Each puzzle pattern piece corresponds to a respective light point contour and each puzzle pattern piece comprises a part of the puzzle pattern that is unique. A respective lighting characteristic is then generated that corresponds to each respective puzzle pattern piece. Each tile is then controlled such that each light point displays a lighting characteristic corresponding to a puzzle pattern piece.

[0069] A second digital image is then recorded of the light assembly and thereby obtaining an image of the puzzle pattern displayed on the light assembly.

[0070] A puzzle solving algorithm is then executed, using the image of the puzzle pattern together with the puzzle image. The puzzle solving algorithm is configured to determine the mapping function whereby the position and logical address of each respective light point contour of each light point is linked with the physical address of each light point such that the input light pattern can be displayed on the light assembly.

[0071] The embodiments and advantages for the light panel assembly according to the invention applies mutatis mutandis to the light assembly according to the invention.

[0072] BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The present invention will be better understood with the help of the accompanying figures, where:

[0074] Fig. la schematically illustrates a space wherein a light panel assembly is arranged,

[0075] Fig. lb schematically illustrates two light panels and a controller, Fig. 1c schematically illustrates circuitry in a light panel,

[0076] Fig. 2a schematically illustrates a contour map of a light panel assembly, Fig. 2b schematically illustrates an example of a puzzle image, Fig. 2c schematically illustrates a puzzle pattern, superimposed on a contour map of a light panel assembly,

[0077] Fig. 2d schematically illustrates two light characteristics, where respective images are superimposed on light sources,

[0078] Fig. 2e schematically illustrates the light sources of the tiles in figure 2d, each displaying light patterns representing their respective image,2024PF80391

[0079] 11

[0080] Fig. 3 schematically illustrates the steps of the method disclosed herein including optional steps indicated by dashed boxes.

[0081] DETAILED DESCRIPTION

[0082] The invention will now be described with reference to figures la-c, 2a-e and figure 3. Figure 3 schematically illustrates method steps of the invention and figures la-c and 2a-e illustrate components associated with method steps of the invention. The method may be performed with a light assembly or a light panel assembly according to the invention.

[0083] The figures illustrate features associated with a method of determining a mapping function. By “mapping function”, it is here meant substantially any sequence(s) of operations acting on a digital representation or partial representation of an image and linking said digital representation to a physical image display means, or representation of a physical display means. The mapping function enables an input light pattern, for example a figurative image or other patterns having a desired spatial configuration, to be displayed on a light panel assembly 10 arranged, e.g., on a wall 1. By “light panel assembly”, it is here meant any group of two or more light panels 20, 21, configured to be positioned in association with each other and configured to be controlled by a controller 50, or system 50, having direct or indirect access to each tile. Alternatively, the light panel assembly comprising light panels may be a light assembly comprising a plurality of light points. Such light points may be light panels. The light panel assembly 10 comprises a plurality of light panel tiles 20, 21. By “light panel tiles”, it is here meant substantially any device comprising at least one light source 30 (e.g. pixel) configured to be controlled by the controller 50, or system 50. The tiles 20, 21 are spatially arranged in relation to each other, as illustrated in figure la. Each tile 20, 21 comprises a physical address 403. By “physical address”, it is here meant substantially any piece of information tied to a specific light panel tile 20,21 (e.g. MAC address).

[0084] As illustrated in figure 1c, referring also to figure la and figure lb, each tile 20, 21 may comprise circuitry 40, which include processing and input / output circuitry 401 and memory circuitry 402 The physical address 403 is preferably a non-volatile part of the memory circuitry 402.

[0085] Each tile 20, 21 is configured to be controlled via the physical address 403 to emit light. The mapping function is configured to link a position and a logical address associated with each tile 20, 21 to the physical address 403 of each respective tile 20, 21. The method comprises the steps as illustrated in figure 3. It should be noted that the reference2024PF80391

[0086] 12

[0087] numbers in figure 3 are merely used to refer to the respective steps and impose no restriction as to the order in which they are carried out.

[0088] A first digital image of the light panel assembly 10 is obtained in step 301. Using the first digital image of the light panel assembly 10, a contour map 200 of the tiles 20, 21, is determined in step 303. By “contour map”, it is here meant substantially any representation comprising information regarding the relative positions of the contours of each tile. The contour map 200 comprises tile contours 201, 202 corresponding to a respective tile 20, 21.

[0089] A specification of at least coordinates that define a respective position and extent of each tile contour 201, 202, is determined based on said contour map 200 in step 305a. By “specification of... extent of each tile contour”, it is here meant substantially any information defining the span of a segment of a contour of a tile or an area enclosed by the contour of the tile (for example, the coordinates defining positions of contours of a tile could contain information about which other coordinates it should be “connected to” in order to draw a segment of a contour of a tile). A respective logical address that represents each respective tile contour 201, 202 is assigned in step 305b. By “logical address”, it is here meant substantially any piece of information representing the contour representation of a respective tile within the contour map. This may for example be an numerical, alphabetical or alphanumerical value assigned, for example, according to the positions of the respective contours 201, 202, e.g. starting at the “top-left” contour and finishing at the “bottom right” contour (top, bottom, right, left merely refer to a contour representation of tiles in relation to each other and impose no restriction on the light panel assembly).

[0090] Based on a puzzle image 221, a puzzle pattern 222 is generated using the contour map 200 in step 307. The puzzle pattern 222 comprises a plurality of puzzle pattern pieces 223, 224. Each puzzle pattern piece 223, 224 corresponds to a respective tile contour 201, 202, and each puzzle pattern piece 223, 224 comprises a part of the puzzle pattern 223 that is unique. By “unique”, it is here meant significantly distinct from other puzzle pieces including rotationally distinct.

[0091] A respective lighting characteristic 240, 241 corresponding to each respective puzzle pattern piece 223, 224 is generated in step 309. By “lighting characteristic”, it is here meant substantially any representation of the light output of at least one light source. As exemplified in figure 2d and figure 2e, lighting characteristic areas 245, 247 having different colors or hues are represented by respective light sources 246, 248.2024PF80391

[0092] 13

[0093] Each tile 20, 21 is controlled such that each tile 20, 21 displays a lighting characteristic 240, 241 corresponding to a puzzle pattern piece 223, 224 in step 311.

[0094] A second digital image of the light panel assembly 10 is recorded in step 313 and an image of the puzzle pattern 222 displayed on the light panel assembly 10 is thereby obtained.

[0095] A puzzle solving algorithm is executed in step 315. The puzzle solving algorithm uses the image of the puzzle pattern 222 together with the puzzle image 221. The puzzle solving algorithm is configured to determine the mapping function. The mapping function links the position and logical address of each respective tile contour 201, 202 of each tile 20, 21 with the physical address 403 of each tile 20, 21 such that the input light pattern can be displayed on the light panel assembly lO.By “puzzle solving algorithm”, it is here meant substantially any computer implemented method which identifies the location and orientation of each a puzzle piece and maps each puzzle piece to a respective location and orientation, corresponding to the correct location of the puzzle piece with respect to the puzzle image.

[0096] As schematically illustrated in figure lb and figure 1c, in various embodiments the method described herein may be executed by way of software instructions 55 stored and executed in a controller 50, or system 50, that is configured to communicate via, e.g., a wireless interface 51 with the circuitry 40 arranged in the tiles of the light panel assembly 10. Such a controller 50, or system 50, may comprise processing and memory circuitry and be in the form of a mobile “smart” device executing the software instructions 55 in the form of an application, as well as any other suitable computing device, and that is capable of communication via, e.g., the wireless interface 51 (which could for example be Bluetooth or WIFI- based) or via a wired interface.

[0097] Figure 3 also illustrates an embodiment of the method that comprises a step 306 in which a custom puzzle image is selected. In step 306, a puzzle image based on a spatial factor derived from the contour map 200 is selected.

[0098] Figure 2a illustrates a contour map 200 of a light panel assembly and figure 2b illustrates a puzzle image. In some embodiments, the special factor in step 306 derived from the contour map 200 is any one or more of eccentricity of the contour map, rotational variance of the contour map, deviation of the contour map from a standard shape, said standard shape comprising at least one of a polygon, a circle or a line

[0099] In some embodiments, the selection of a custom puzzle image in step 306 is based on an environmental parameter around the panel assembly 10. The environmental2024PF80391

[0100] 14

[0101] parameter can be any one or more of ambient light level, contrast between the colors in a displayed image, background or wall color, glare on panels 20, 21 caused by external light sources.

[0102] Some embodiments feature light panel assemblies 10 where each tile 20, 21 comprises single light source. Such embodiments are not explicitly shown in any figure, but it should be understood that tiles like tiles 20 and 21, which comprise 12 and 24 light sources respectively could also only comprise a single light source. In this case, where each tile only comprises a single light source, the step of controlling 311 (cf. figure 3) each tile 20, 21 such that each tile 20, 21 displays the lighting characteristic 240, 241 corresponding to each respective puzzle pattern piece 223, 224 involves providing each tile with a unique hue, saturation and brightness, HSB, value.

[0103] Figure 2a-e shows an embodiment where each tile 20, 21 comprises a M*N two-dimensional matrix of light emitting pixels. In this embodiment, the step of generating 307 a puzzle pattern 222 comprises generating puzzle pattern pieces 223, 224 having a respective part of the puzzle pattern 223 that is rotationally unique.

[0104] In some embodiments, as schematically illustrated in figure fig 3, the method may further comprise a step of receiving 308 the physical address 403 of each tile and tile data associated with each tile 20, 21. The tile data may comprise at least one of tile dimensions, number of pixels, pixel resolution, pixel configuration, and tile shape.

[0105] In these embodiments, the step 309 where a respective lighting characteristic 240, 241 corresponding to each respective puzzle pattern piece 223, 224 is generated 309 comprises using the tile data for matching a lighting characteristic 240, 241 corresponding to a puzzle pattern piece 223, 224 to a tile 20, 21.

[0106] In some embodiments, as exemplified in figure 3, the method may further comprise step 317 and step 319. In step 317 a confirmation image is displayed on the light panel assembly 10 using the mapping function. In step 319, a confirmation signal that indicates that the displayed confirmation image is correctly displayed is obtained. These steps are indicated by dashed boxes in figure 3.

[0107] In these embodiments, the obtained confirmation signal is issued by a human observer.

[0108] Alternatively, the obtained confirmation signal is issued by a confirmation algorithm.

Claims

2024PF8039115CLAIMS:

1. A method of determining a mapping function for enabling an input light pattern to be displayed on a light assembly (10) comprising a plurality of light points (20, 21) spatially arranged in relation to each other, each tile (20, 21) comprising a physical address (403) and configured to be controlled via the physical address (403) to emit light, said mapping function being configured to link a position and a logical address associated with each light point (20, 21) to the physical address (403) of each respective light point (20, 21), the method comprising:obtaining (301) a first digital image of the light assembly (10), determining (303), using the first digital image of the light assembly (10), a contour map (200) of the light points (20, 21), said contour map (200) comprising light point contours (201, 202) corresponding to a respective light point (20, 21),determining (305a), based on said contour map (200), a specification of at least coordinates that define a respective position and extent of each light point contour (201, 202) and assigning (305b) a respective logical address that represents each respective light point contour (201, 202),generating (307), based on a puzzle image (221), a puzzle pattern (222), using the contour map (200), said puzzle pattern (222) comprising a plurality of puzzle pattern pieces (223, 224) where each puzzle pattern piece (223, 224) corresponds to a respective light point contour (201, 202), and where each puzzle pattern piece (223, 224) comprises a part of the puzzle pattern (223) that is unique,generating (309) a respective lighting characteristic (240, 241) corresponding to each respective puzzle pattern piece (223, 224),controlling (311) each light point (20, 21) such that each light point (20, 21) displays a lighting characteristic (240, 241) corresponding to a puzzle pattern piece (223, 224),recording (313) a second digital image of the light assembly (10) and thereby obtaining an image of the puzzle pattern (222) displayed on the light assembly (10),executing (315) a puzzle solving algorithm, using the image of the puzzle pattern (222) together with the puzzle image (221), said puzzle solving algorithm being2024PF8039116configured to determine the mapping function whereby the position and logical address of each respective light point contour (201, 202) of each light point (20, 21) is linked with the physical address (403) of each light point (20, 21) such that the input light pattern can be displayed on the light assembly (10).

2. The method according to claim 1, further comprising selecting (306) a puzzle image based on a spatial factor derived from the contour map (200).

3. The method according to claim 2, wherein the spatial factor derived from the contour map (200) is any one or more of:- eccentricity of the contour map- rotational variance of the contour map- deviation of the contour map from a standard shape, said standard shape comprising at least one of polygon, a circle or a line.

4. The method according to any one of the previous claims, wherein the first digital image is a video, and / or wherein the second digital image is a video.

5. The method according to any one of the previous claims, further comprising selecting (306) a puzzle image based on an environmental parameter around the light assembly (10), said environmental parameter being any one or more of:- ambient light level,- contrast between the colors in a displayed image,- background or wall color,- glare on the light points caused by external light sources.

6. The method according to any one of the previous claims, wherein each light point (20, 21) comprises a single light source, wherein the step of controlling (311) each light point (20, 21) such that each light point (20, 21) displays the lighting characteristic (240, 241) corresponding to each respective puzzle pattern piece (223, 224) involves providing each light point with a unique hue, saturation and brightness value.

7. The method according to any one of claims 1 to 5, wherein each light point (20, 21) comprises a M*N two-dimensional matrix of light emitting pixels, wherein the step2024PF8039117of generating (307) a puzzle patern (222) comprises generating puzzle patern pieces (223, 224) having a respective part of the puzzle patern (223) that is rotationally unique.

8. The method according to any one of claims 1 to 5, wherein the light assembly comprising a plurality of light points is a light panel assembly comprising a plurality of light panel tiles, wherein said light point contour is a tile contour.

9. The method according to claim 8, further comprising receiving the physical address (403) of each and tile data associated with each tile (20, 21), said tile data comprising at least one of:tile dimensions,number of pixels,pixel resolution,pixel configuration, andtile shape.

10. The method according to claim 9, wherein generating (309) a respective lighting characteristic (240, 241) corresponding to each respective puzzle patern piece (223, 224) comprises using the tile data for matching a lighting characteristic (240, 241) corresponding to a puzzle patern piece (223, 224) to a tile (20, 21).

11. The method according to any one of the previous claims, further comprising the steps of:displaying (317), using the mapping function, a confirmation image on the light assembly (10), andobtaining (319) a confirmation signal that indicates that the displayed confirmation image is correctly displayed.

12. A non-transitory computer-readable storage medium having stored thereon instructions (55) for implementing the method according to any one of claims 1 to 11, when executed on a device having processing capabilities.

13. A system (50) comprising circuitry configured to determining a mapping function for enabling an input light patern to be displayed on a light assembly (10)2024PF8039118comprising a plurality of light points (20, 21) spatially arranged in relation to each other, each light point (20, 21) comprising a physical address (403) and configured to be controlled via the physical address (403) to emit light, said mapping function being configured to link a position and a logical address associated with each light point (20, 21) to the physical address (403) of each respective light point (20, 21), the system (50) comprising a controller configured to:obtain a first digital image of the light assembly (10),determine, using the first digital image of the light assembly (10), a contour map (200) of the light points (20, 21), said contour map (200) comprising light point contours (201, 202) corresponding to a respective light point (20, 21),determine, based on said contour map (200), a specification of at least coordinates that define a respective position and extent of each light point contour (201, 202) and assign a respective logical address that represents each respective light point contour (201, 202),generate, based on a puzzle image (221), a puzzle pattern (222), using the contour map (200), said puzzle pattern (222) comprising a plurality of puzzle pattern pieces (223, 224) where each puzzle pattern piece (223, 224) corresponds to a respective light point contour (201, 202), and where each puzzle pattern piece (223, 224) comprises a part of the puzzle pattern (223) that is unique,generate a respective lighting characteristic (240, 241) corresponding to each respective puzzle pattern piece (223, 224),control each light point (20, 21) such that each light point (20, 21) displays a lighting characteristic (240, 241) corresponding to a puzzle pattern piece (223, 224),record a second digital image of the light assembly (10) and thereby obtain an image of the puzzle pattern (222) displayed on the light assembly (10),execute a puzzle solving algorithm, using the image of the puzzle pattern (222) together with the puzzle image (221), said puzzle solving algorithm being configured to determine the mapping function whereby the position and logical address of each respective light point contour (201, 202) of each light point (20, 21) is linked with the physical address (403) of each light point (20, 21) such that the input light pattern can be displayed on the light assembly (10).2024PF803911914. The system according to claim 13, wherein the system comprises the light assembly (10), wherein the controller is communicatively coupled to the light assembly and configured to control the light assembly.

15. The system according to any one of claims 13 to 14, wherein the light assembly comprising a plurality of light points is a light panel assembly comprising a plurality of light panel tiles, wherein said light point contour is a tile contour.

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