Projection mode adjusting system, projection mode adjusting method and non-transitory computer readable storage medium

Abstract

The invention provides a projection mode adjusting system, a projection mode adjusting method and a non-transient computer readable storage medium. The projection mode of a projector can be automatically switched. The system comprises a projector and an electronic device, the projector has a plurality of projection modes, and the electronic device is in communication connection with the projector. In response to an automatic mode instruction generated by the electronic device according to the operation, an image capturing module on the electronic device is enabled to capture an image of an environment where the projector is located. The image capturing module determines a plurality of image capturing parameters during image capturing according to the environment. The electronic device generates a setting instruction according to the image capturing parameter and transmits the setting instruction to the projector. The projector selects one of a plurality of projection modes according to the setting instruction, and determines projection parameters of the projector according to the selected projection mode.

Description

Technical Field

[0001] This disclosure relates to a projection mode adjustment system and a projection mode adjustment method, which can automatically switch projection modes. Background Technology

[0002] In existing technologies, projectors offer various display modes, such as movie mode, game mode, and report mode, to suit different application scenarios. However, switching between these modes often requires using an on-screen display (OSD) menu. An OSD menu is a selection interface displayed on the screen to control various projector settings. However, the operation of OSD menus is usually cumbersome, and the user experience is poor for users unfamiliar with its operation. When switching display modes, users may need to perform multiple button presses or navigate through complex menu structures, which not only increases the difficulty of use but may also affect the smoothness of the projection process. Therefore, a more intuitive and easy-to-use user interface is needed to simplify the mode switching process and improve the user experience.

[0003] The "Background Art" paragraph is only used to help understand the content of this invention. Therefore, the content disclosed in the "Background Art" paragraph may include some prior art that is not known to those skilled in the art. The content disclosed in the "Background Art" paragraph does not mean that the content or the problem to be solved by one or more embodiments of this invention was known or recognized by those skilled in the art before this application was filed. Summary of the Invention

[0004] This invention proposes a projection mode adjustment system, a projection mode adjustment method, and a non-transitory computer-readable storage medium that can automatically switch the projection mode of a projector.

[0005] Other objects and advantages of the present invention can be further understood from the technical features disclosed herein.

[0006] To achieve one, some, or all of the above objectives, or other objectives, embodiments of the present invention provide a projection mode adjustment system, comprising a projector and an electronic device. The projector has multiple projection modes, wherein the projector projects a projected image according to one of these projection modes. The electronic device is communicatively connected to the projector and includes a processor and an image capture module, the processor being coupled to the image capture module. In response to the electronic device generating an automatic mode command based on operation, the processor enables the image capture module to capture an image of the environment in which the projector is located. The image capture module determines multiple image capture parameters based on the environment when capturing the image. The processor generates a setting command based on the image capture parameters and transmits the setting command to the projector. The projector selects one of the multiple projection modes as the selected mode according to the setting command and determines the projector's projection parameters based on the selected mode.

[0007] Embodiments of the present invention also propose a projection mode adjustment method, comprising: in response to generating an automatic mode command based on an operation, enabling an image capturing module to capture an image of the environment in which the projector is located; and generating a setting command based on a plurality of image capturing parameters, and transmitting the setting command to the projector, so that the projector selects one of a plurality of projection modes as the selected mode according to the setting command, and determines at least one projection parameter of the projector based on the selected mode. The image capturing parameters are determined by the image capturing module based on the environment when capturing the image.

[0008] Embodiments of the present invention also propose a non-transitory computer-readable storage medium that stores an application program executable by a processor. When executed by the processor, this application program is used to complete the above-described projection mode adjustment method.

[0009] To make the above features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. Attached Figure Description

[0010] Figure 1 This is a schematic diagram illustrating an application scenario of a projection mode adjustment system according to an embodiment.

[0011] Figure 2 This is a schematic diagram of an electronic device and a projector system according to one embodiment.

[0012] Figure 3 This is a flowchart illustrating the operation of a projection mode adjustment system according to one embodiment.

[0013] Figure 4 This is a flowchart illustrating a projection mode adjustment method according to an embodiment. Detailed Implementation

[0014] Some embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Component symbols used in the following description, when appearing in different drawings, are considered to be the same or similar components. These embodiments are only a part of the present invention and do not disclose all possible implementations of the invention. More precisely, these embodiments are merely examples of systems and methods within the scope of the present invention's patent application.

[0015] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are merely for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present invention.

[0016] Figure 1 This is a schematic diagram illustrating an application scenario of a projection mode adjustment system according to one embodiment. Please refer to... Figure 1 The projection mode adjustment system includes an electronic device 120 and a projector 130. The electronic device 120 is operated by the user 110 and is communicatively connected to the projector 130. The electronic device 120 can be a smartphone, laptop, tablet, personal digital assistant, etc. The projector 130 has multiple projection modes and projects a projected image onto a projection surface according to one of these modes. For example, the projection modes include at least a report mode 140, a movie mode 150, and a bright mode. The user 110 can operate the electronic device 120 to activate the automatic mode. In the automatic mode, the image capture module on the electronic device 120 senses relevant information about the environment in which the projector 130 is located, and then controls the projector 130 to switch projection modes based on the relevant information to achieve automatic switching of projection modes. For example, when the electronic device 120 is in automatic mode, and the user 110 is giving a presentation, the projector 130 is in report mode 140. However, if a video needs to be played during the presentation, the user 110 will temporarily turn off the ambient light. At this time, the electronic device 120 will detect the change in ambient brightness and automatically control the projector 130 to switch the projection mode to enter the movie mode 150 suitable for the current environment. When the video playback ends and the presentation continues, the user 110 will turn on the ambient light. At this time, the electronic device 120 will detect the change in ambient brightness and automatically control the projector 130 to switch the projection mode to return to the report mode 140 suitable for the current environment. In this way, the user 110 does not need to switch the projection mode of the projector 130 through the interface provided by the projector 130 (such as the OSD menu). The electronic device 120 continuously senses the changes in ambient brightness and automatically switches the projector 130 to a projection mode suitable for the current ambient brightness.

[0017] Figure 2 This is a system schematic diagram illustrating an electronic device and a projector according to one embodiment. Please refer to... Figure 2 The electronic device 120 includes a processor 211, an image capturing module 212, a communication module 213, an input module 214, and a memory 215. The processor 211 is coupled to the image capturing module 212, the communication module 213, the input module 214, and the memory 215.

[0018] Processor 211 may be a central processing unit, microprocessor, microcontroller, application-specific integrated circuit (ASIC), programmable logic device (PLD), etc. Image capturing module 212 may include lenses, apertures, shutters, light sensors, etc. The light sensor may be a charge-coupled device (CCD) sensor, a complementary metal-oxide-semiconductor (CMOS) sensor, or other suitable photosensitive element. Communication module 213 may include circuitry supporting communication functions such as near-field communication, infrared communication, Bluetooth, or Wi-Fi. Input module 214 may include a touch screen, keyboard, or mouse, etc. Memory 215 may include RAM, flash memory, read-only memory, etc. Memory 215 stores application programs, which are executed by processor 211.

[0019] On the other hand, the projector 130 includes a projection module 221, a display processor 222, and a communication module 223. The display processor 222 is coupled to the projection module 221 and the communication module 223. The projection module 221 is used to project a projected image onto a projection surface. The projection module 221 may include a digital micromirror device (DMD), a liquid crystal display (LCD), a liquid crystal on silicon (LCoS) panel, a digital light processing (DLP) unit, a light source, a zoom lens, a zoom motor, or other display-related components. The display processor 222 may be, for example, a microprocessor, a display chip, a microcontroller, an application-specific integrated circuit, a programmable logic device, etc. The communication module 223 may include circuitry supporting communication functions such as near-field communication, infrared communication, Bluetooth, or Wi-Fi, for communication connection to the communication module 213 of the electronic device 120.

[0020] Figure 3 This is a flowchart illustrating the operation of a projection mode adjustment system according to one embodiment. Please refer to... Figures 1 to 3 First, user 110 operates 310 on electronic device 120, causing electronic device 120 to execute step 301: generating an automatic mode instruction based on user 110's operation. In some embodiments, processor 211 executes an application program stored in memory 215. This application program provides an interface that may contain one or more graphical objects, such as buttons, menus, sliders, etc. User 110 can operate 310 on this interface, for example, pressing a button corresponding to the automatic mode function. The application program then causes processor 211 to generate an automatic mode instruction based on this operation 310.

[0021] In response to an automatic mode command generated by electronic device 120 according to operation 310, in step 302, processor 211 enables image capturing module 212 to capture images of the environment in which projector 130 is located. In one embodiment, image capturing module 212 continuously captures images of the environment, and user 110 does not need to press a shutter button. In some embodiments, user 110 can point image capturing module 212 toward a light source in the environment, or toward a ceiling, etc., so that image capturing module 212 can sense the light intensity in the environment.

[0022] In step 303, the image capturing module 212 determines multiple image capturing parameters based on the environment of the projector 130. These parameters include, for example, exposure time, aperture size, and ISO sensitivity. Exposure time refers to the duration from when the shutter of the image capturing module 212 opens to when it closes, during which time light passes through the lens of the image capturing module 212 and is projected onto the photosensitive element. The length of the exposure time directly affects the amount of light, thus affecting the brightness, color saturation, and motion capture effect of the image. The aperture size determines the amount of light entering the lens of the image capturing module 212. A larger aperture (smaller value) allows more light in, resulting in a more pronounced background blur (shallow depth of field); a smaller aperture (larger value) allows less light in, resulting in a deeper depth of field. Furthermore, higher ISO sensitivity leads to increased noise in the image, potentially affecting color purity. The image capturing module 212 has its own mechanism to determine imaging parameters such as exposure time, aperture size, and ISO. For example, when the ambient light is dim, the exposure time can be increased, the aperture size can be increased (by decreasing the value), and the ISO can be increased. These imaging parameters can reflect the ambient brightness. In this embodiment, the ambient brightness is not determined by the pixels in the image because the pixels in the image also reflect the colors of objects in the environment. If the object is black, the grayscale value of the pixel will also be low, so the pixel cannot accurately reflect the ambient brightness. Conversely, the above-mentioned imaging parameters are independent of the colors of objects in the environment and can effectively reflect the environmental conditions. In addition, the specifications of the image capturing module 212 on different electronic devices 120 are also different, and the image capturing module may also use different image correction or color adjustment algorithms to process pixels. If the light intensity is analyzed using the pixels in the image, it may not be able to represent the actual ambient brightness. In this embodiment, the ambient brightness is calculated using imaging parameters, which can avoid the errors caused by using different electronic devices and obtain an ambient brightness that is more consistent with the actual situation.

[0023] In step 304, the processor 211 generates a setting instruction based on the image acquisition parameters. This setting instruction is used to select the projection mode of the projector 130. As mentioned above, the image acquisition parameters reflect the ambient brightness, so the processor 211 can determine a suitable projection mode based on these image acquisition parameters. In some embodiments, the processor 211 calculates the ambient light intensity based on the image acquisition parameters and generates the setting instruction based on this light intensity. For example, when the ambient light intensity is low, a movie mode can be selected; when the ambient light intensity is high, a bright mode or a report mode can be selected.

[0024] In some embodiments, the processor 211 calculates the exposure value EV based on the imaging parameters and in conjunction with the following mathematical formula 1, and then uses the exposure value EV to calculate the ambient light intensity Lux using the following mathematical formula 2.

[0025] Mathematical formula 1:

[0026]

[0027] Mathematical formula 2:

[0028] Lux = α × 2 EV

[0029] Where EV is the exposure value, A is the aperture size, t is the exposure time, ISO is the ISO sensitivity, and Lux ​​is the ambient light intensity. α is a real number, for example, 2.5.

[0030] In this embodiment, the projector 130 has three projection modes: a first mode, a second mode, and a third mode, which are used for different scenarios. The first mode can be called a movie mode, the second mode can be called a report mode, and the third mode can be called a bright mode. However, the present invention does not limit the names of these modes. For example, in some embodiments, the movie mode can also be called a theater mode. In some embodiments, when the light intensity Lux is less than a first intensity threshold, the processor 211 generates a setting instruction corresponding to the first mode. When the light intensity Lux is greater than or equal to the first intensity threshold and less than a second intensity threshold, the processor 211 generates a setting instruction corresponding to the second mode. When the light intensity Lux is greater than or equal to the second intensity threshold, the processor 211 generates a setting instruction corresponding to the third mode. The second intensity threshold is greater than the first intensity threshold. In other embodiments, the projector 130 may also have more or fewer projection modes. The present invention does not limit the number or names of the projection modes.

[0031] Next, the processor 211 transmits the setting instruction 320 to the projector 130. In step 305, the projector 130 selects one of the multiple projection modes as the selected mode according to the setting instruction 320. In step 306, the display processor 222 determines the projection parameters of the projector 130 according to the selected mode. These projection parameters include, for example, the brightness, contrast, and color temperature of the projected image. For example, when the processor 211 generates the setting instruction 320 corresponding to the first mode to the projector 130, the projector 130 will select the first mode according to the setting instruction 320, and the display processor 222 will project the image according to the projection parameters set in the projector 130 corresponding to the first mode. The brightness of the projected image is different in different projection modes. For example, the brightness in the first mode is less than the brightness in the second mode, and the brightness in the second mode is less than the brightness in the third mode. In some embodiments, the contrast of the projected image is also different in different projection modes, and the display processor 222 can determine the contrast of each projection mode according to preset parameters.

[0032] In some embodiments, fine-tuning can also be performed in various projection modes. For example, user 110 can select to brighten or darken, increase or decrease contrast, or adjust color temperature on the interface provided by electronic device 120. Processor 211 can generate fine-tuning instructions based on user 110's operations and transmit these instructions to projector 130. Display processor 222 of projector 130 will adjust the projection parameters of the projected image according to the received fine-tuning instructions, such as adjusting brightness, contrast, or color temperature.

[0033] In some embodiments, in addition to determining the projection mode based on the light intensity Lux, the processor 211 can also generate fine-tuning instructions based on the light intensity. For example, the processor 211 can further divide the light intensity into more detailed ranges, setting more sub-ranges within the three ranges: less than a first intensity threshold, between the first and second intensity thresholds, and greater than or equal to the second intensity threshold. Corresponding fine-tuning instructions can be generated within different sub-ranges. For example, in the first mode, if the light intensity is greater than a third intensity threshold, a fine-tuning instruction to increase the projection brightness is generated. Conversely, a fine-tuning instruction to decrease the projection brightness is generated, where the third intensity threshold is less than the first intensity threshold.

[0034] exist Figure 3In this embodiment, after the electronic device 120 generates an automatic mode command in step 301, the processor 211 enters automatic mode and determines whether to exit automatic mode at preset intervals. In some embodiments, the user 110 can perform an operation 310 on the electronic device 120 to disable automatic mode. This operation 310 may include pressing a button to disable automatic mode on the electronic device 120, or selecting a button for one of the multiple projection modes of the projector 130. In response to the above operation 310, the electronic device 120 executes step 307: the processor 211 exits automatic mode according to the user's operation. If the user does not perform operation 310 to exit automatic mode, the processor 211 will remain in automatic mode.

[0035] In some embodiments, the user 110 may also select a projection mode in the OSD menu provided by the projector 130, and then the projector 130 will send a termination command to the electronic device 120 to cause the electronic device 120 to exit the automatic mode.

[0036] If the system determines that it is in automatic mode, the processor 211 will repeat steps 302 to 304, that is, continuously obtain the image acquisition parameters of the image acquisition module 212 to generate the setting command 320, and transmit the setting command 320 to the projector 130. If the system determines that it is exiting automatic mode, the processor 211 will disable the image acquisition module 212 to stop capturing images of the environment.

[0037] Figure 4 This is a flowchart illustrating a projection mode adjustment method according to an embodiment. Please refer to... Figure 4 In step 401, in response to an automatic mode command generated based on the operation, the system enters automatic mode. In step 402, the image capturing module is enabled to capture images of the environment in which the projector is located. In step 403, a setting command is generated based on the image capturing parameters and transmitted to the projector, causing the projector to select one of multiple projection modes as the selected mode, and to determine the projector's projection parameters based on the selected mode. The image capturing parameters are determined by the image capturing module based on the environment when capturing images. On the other hand, step 404 is performed at preset intervals to determine whether to exit automatic mode. If the result of step 404 is negative (maintaining automatic mode), the system returns to step 402 and performs step 404 again after a preset time. If the result of step 404 is positive, step 405 is performed to disable the image capturing module, thereby stopping the capture of environmental images. Figure 4 Each step has been explained in detail above and will not be repeated here. It is worth noting that... Figure 4 Each step can be implemented as multiple program codes or circuits, but the present invention is not limited thereto. Furthermore, Figure 4 The method can be used in conjunction with the above embodiments or alone; in other words, Figure 4 Other steps can also be added between the various steps.

[0038] This invention also proposes a non-transitory computer-readable storage medium, such as random access memory, read-only memory, flash memory, floppy disk, hard disk, optical disc, USB flash drive, magnetic tape, etc. This non-transitory computer-readable storage medium stores an application program that can be executed by a processor. When executed by the processor, this application program is used to complete the aforementioned projection mode adjustment method.

[0039] In summary, the projection mode adjustment system and method of the present invention have at least one of the following advantages. First, in automatic mode, the user does not need to manually change the projection mode of the projector; instead, the electronic device automatically senses the ambient brightness. When the ambient brightness changes, the projection mode of the projector can be automatically switched. Furthermore, by using image acquisition parameters to calculate the ambient light intensity instead of using image pixels, the influence of different algorithms on different electronic devices and the colors of objects in the environment can be avoided.

[0040] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent changes and modifications made in accordance with the claims and specification of the present invention are still within the scope of this patent. Furthermore, no embodiment or claim of the present invention needs to achieve all the objectives, advantages, or features disclosed in the present invention. In addition, the abstract and title of the invention are only used to assist in patent document retrieval and are not intended to limit the scope of the invention. Moreover, the terms "first," "second," etc., mentioned in this specification or claims are only used to name elements or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

Claims

1. A projection mode adjustment system, characterized by, The projection mode adjustment system includes a projector and an electronic device, wherein: The projector has a plurality of projection modes, wherein the projector is configured to project a projection image according to one of the plurality of projection modes; The electronic device is communicatively connected to the projector, and the electronic device includes a processor and an image capturing module, wherein the processor is coupled to the image capturing module, In response to the electronic device generating an automatic mode instruction according to an operation, the processor enables the image capturing module to capture an image of an environment in which the projector is located, the image capturing module determines a plurality of image capturing parameters according to the environment when capturing the image, the processor generates a setting instruction according to the plurality of image capturing parameters, and the processor transmits the setting instruction to the projector, wherein the projector selects one of the plurality of projection modes as a selected mode according to the setting instruction, and determines at least one projection parameter of the projector according to the selected mode.

2. The projection mode adjustment system of claim 1, wherein The plurality of image capturing parameters includes an exposure time, an aperture size, and a sensitivity, The processor calculates a light intensity corresponding to the environment according to the plurality of image capturing parameters, and generates the setting instruction according to the light intensity.

3. The projection mode adjustment system of claim 2, wherein The light intensity of the environment is calculated according to Mathematical Formula 1 and Mathematical Formula 2: Mathematical Formula 1: Mathematical Formula 2: Lux = a x 2 EV wherein EV is an exposure value, A is the aperture size, t is the exposure time, ISO is the sensitivity, Lux is the light intensity of the environment, and a is a real number.

4. The projection mode adjustment system of claim 3, wherein The plurality of projection modes includes a first mode, a second mode, and a third mode, wherein When the light intensity is less than a first intensity threshold value, the processor generates the setting instruction corresponding to the first mode, When the light intensity is greater than or equal to the first intensity threshold value and less than a second intensity threshold value, the processor generates the setting instruction corresponding to the second mode, When the light intensity is greater than or equal to the second intensity threshold value, the processor generates the setting instruction corresponding to the third mode, wherein the second intensity threshold value is greater than the first intensity threshold value.

5. The projection mode adjustment system of claim 4, wherein The at least one projection parameter includes a brightness of the projection image, the brightness in the first mode is less than the brightness in the second mode, and the brightness in the second mode is less than the brightness in the third mode.

6. The projection mode adjustment system of claim 4, wherein The processor is further configured to generate a fine adjustment instruction according to the light intensity, and transmit the fine adjustment instruction to the projector, wherein the projector is configured to adjust the at least one projection parameter according to the fine adjustment instruction, and the at least one projection parameter includes at least one of a brightness and a contrast of the projection image.

7. The projection mode adjustment system of claim 1, wherein When the electronic device generates the automatic mode instruction, the processor enters an automatic mode, and determines whether to exit the automatic mode every preset time, If it is determined to maintain in the automatic mode, the processor continuously generates the setting instruction according to the image capturing parameters of the image capturing module, and transmits the setting instruction to the projector, If it is determined to exit the automatic mode, the processor disables the image capturing module to stop capturing the image of the environment.

8. The projection mode adjustment system of claim 1, wherein, The electronic device includes an application, wherein when the processor executes the application, the application causes the processor to generate the automatic mode instruction according to the operation.

9. A projection mode adjusting method characterized by comprising: The projection mode adjustment method includes: in response to generating the automatic mode instruction according to the operation, enabling an image capturing module to cause the image capturing module to capture an image of an environment in which the projector is located; and generating a setting instruction according to a plurality of image capturing parameters and transmitting the setting instruction to the projector to cause the projector to select one of a plurality of projection modes as a selected mode according to the setting instruction and determine at least one projection parameter of the projector according to the selected mode, wherein the plurality of image capturing parameters are determined by the image capturing module according to the environment when capturing the image.

10. The projection mode adjustment method according to claim 9, wherein The plurality of image capturing parameters include exposure time, aperture size, and sensitivity, and the step of generating the setting instruction according to the plurality of image capturing parameters includes: calculating light intensity corresponding to the environment according to the plurality of image capturing parameters, and generating the setting instruction according to the light intensity.

11. The projection mode adjustment method of claim 10, wherein, The light intensity of the environment is calculated according to Mathematical Formula 1 and Mathematical Formula 2: Mathematical Formula 1: Mathematical Formula 2: Lux = a x 2 EV wherein EV is the exposure value, A is the aperture size, t is the exposure time, ISO is the sensitivity, Lux is the light intensity of the environment, and a is a real number.

12. The projection mode adjustment method of claim 11, wherein, The plurality of projection modes include a first mode, a second mode, and a third mode, and the step of generating the setting instruction according to the light intensity includes: when the light intensity is less than a first intensity threshold, generating the setting instruction corresponding to the first mode; when the light intensity is greater than or equal to the first intensity threshold and less than a second intensity threshold, generating the setting instruction corresponding to the second mode; and when the light intensity is greater than or equal to the second intensity threshold, generating the setting instruction corresponding to the third mode, wherein the second intensity threshold is greater than the first intensity threshold.

13. The projection mode adjustment method of claim 12, wherein, The projector is used to project a projection image according to one of the plurality of projection modes, and the at least one projection parameter includes the brightness of the projection image, the brightness in the first mode is less than the brightness in the second mode, and the brightness in the second mode is less than the brightness in the third mode.

14. The projection mode adjustment method of claim 12, wherein, The projector is used to project a projection image according to one of the plurality of projection modes, and the projection mode adjustment method further includes: generating a fine-tuning instruction according to the light intensity and transmitting the fine-tuning instruction to the projector to cause the projector to adjust the at least one projection parameter according to the fine-tuning instruction, wherein the at least one projection parameter includes at least one of the brightness and the contrast of the projection image.

15. The projection mode adjustment method of claim 9, wherein, The projection mode adjustment method further includes: after generating the automatic mode instruction, entering the automatic mode and determining whether to exit the automatic mode every preset time. If it is determined to maintain the automatic mode, the plurality of image capturing parameters of the image capturing module are continuously acquired to generate the setting instruction, and the setting instruction is transmitted to the projector; and If it is determined to exit the automatic mode, the image capturing module is disabled to stop capturing the image of the environment.

16. A non-transitory computer-readable storage medium, comprising: A storage stores an application program executable by a processor, the application program, when executed by the processor, is used to complete the projection mode adjustment method according to any one of claims 9-15.

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