WO2017033384A1 - 照明システム及びプログラム - Google Patents
照明システム及びプログラム Download PDFInfo
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- WO2017033384A1 WO2017033384A1 PCT/JP2016/003198 JP2016003198W WO2017033384A1 WO 2017033384 A1 WO2017033384 A1 WO 2017033384A1 JP 2016003198 W JP2016003198 W JP 2016003198W WO 2017033384 A1 WO2017033384 A1 WO 2017033384A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3191—Testing thereof
- H04N9/3194—Testing thereof including sensor feedback
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Definitions
- the present invention relates to an illumination system and a program used for the illumination system.
- LEDs Light Emitting Diode
- LD Laser Diode
- Patent Literature 1 discloses an illumination device having an illumination function and a video projection function.
- the image is projected on a projection surface such as a screen in a state where a lighting device installed on the ceiling or the like is turned off in order to make the projected image easy to see. That is, the image is projected in an environment where the room is darkened.
- a projector when a projector is used in a store or a house, unlike in the case of using a projector in a conventional conference room or the like, it is considered that an image is projected in a bright environment. For example, it is considered that an image is projected on a projection surface in a situation where an illumination device such as a ceiling is turned on or in a situation illuminated by natural light such as sunlight.
- the present invention has been made to solve such a problem, and an object thereof is to provide an illumination system and a program capable of projecting a natural image that is easy to see even in a bright environment.
- an aspect of an illumination system includes a video projection unit that projects an image on a projection plane, an imaging unit that captures an area including the projection plane as an imaging region, and the imaging unit.
- a color correction unit that performs color correction of a video projected by the video projection unit using statistics regarding RGB of at least a part of the target region of the imaging region based on the captured image captured in step (b). is there.
- the present invention can also be realized as a program for causing a computer to function as the lighting system, or as a computer-readable recording medium storing the program.
- FIG. 1 is a diagram schematically illustrating a specific application example of the illumination system according to Embodiment 1.
- FIG. FIG. 2 is a diagram illustrating an example of a schematic configuration of the illumination system according to Embodiment 1 and an image captured by the illumination system.
- FIG. 3 is a block diagram illustrating a configuration of the illumination system according to Embodiment 1.
- FIG. 4 is a diagram illustrating an example of an image captured by the illumination system according to the first modification of the first embodiment.
- FIG. 5 is a diagram illustrating an example of an image captured by the illumination system according to the second modification of the first embodiment.
- FIG. 6 is a diagram illustrating an example of an image captured by the illumination system according to Modification 3 of Embodiment 1.
- FIG. 7 is a diagram illustrating an example of an image captured by the illumination system according to the fourth modification of the first embodiment.
- FIG. 8 is a diagram illustrating an example of a captured image by the illumination system according to the fifth modification of the first embodiment.
- FIG. 9 is a diagram schematically illustrating a specific application example of the illumination system according to Embodiment 2.
- FIG. 10 is a diagram illustrating a schematic configuration of the illumination system according to Embodiment 2 and an example of an image captured by the illumination system.
- FIG. 11 is a block diagram illustrating a configuration of the illumination system according to Embodiment 2.
- FIG. 1 is a diagram schematically illustrating a specific application example of the illumination system 1 according to the first embodiment.
- FIG. 2 is a diagram illustrating an example of a schematic configuration of the illumination system 1 and an image captured by the illumination system 1.
- FIG. 3 is a block diagram showing a configuration of the illumination system 1.
- the illumination system 1 includes a video projection unit 10, an imaging unit 20, and a processing unit 30.
- the video projection unit 10 and the imaging unit 20 are installed in a room, for example.
- the video projection unit 10 and the imaging unit 20 are installed on the ceiling of a room, for example.
- the installation location of the video projection unit 10 and the imaging unit 20 is not limited to this.
- the viewpoint of the video projection unit 10 and the viewpoint of the imaging unit 20 are different, but the video projection unit 10 and the imaging unit 20 are the same. It may be installed at a position. In this case, the video projection unit 10 and the imaging unit 20 may be configured by a single device and have the same viewpoint.
- the video projection unit 10 is a video projection device that projects an image on the projection surface 2.
- the video projection unit 10 is a situation in which a lighting device (not shown) installed on the ceiling or the like is lit or a natural light such as sunlight is inserted into the room from a window or the like and the room is illuminated with natural light. Project images in a bright environment such as That is, the video from the video projection unit 10 is projected onto the projection plane 2 in a bright environment.
- the projection plane 2 onto which an image from the image projection unit 10 is projected may be either a plane or a three-dimensional plane, and includes any structure or animal or plant. As shown in FIGS. 1 and 2, the projection plane 2 in the present embodiment is a desk surface of a desk installed in a room. For example, an image of the honeycomb pattern (illumination pattern) is projected onto the projection surface 2 by the image projection unit 10.
- the projection surface 2 is not limited to a desk surface, and may be a wall surface, a floor surface, a screen, or the like.
- the video projection unit 10 includes a light source such as a semiconductor laser and a lamp, an optical system such as a lens and a mirror, a display element such as a liquid crystal panel, and a projection lens.
- a light source such as a semiconductor laser and a lamp
- an optical system such as a lens and a mirror
- a display element such as a liquid crystal panel
- a projection lens For example, when an image to be projected onto the projection surface 2 is input from the processing unit 30 to the image projection unit 10, the image is projected from the projection lens of the image projection unit 10 toward the projection surface 2.
- the video (image) may be either a still image or a moving image.
- the video projection unit 10 not only has a function of projecting a video, but also has a function of irradiating the projection surface 2 with illumination light. That is, the video projection unit 10 can project a video (illumination pattern) as illumination light.
- the image projection unit 10 is an optical projection device that projects both image light (image) and illumination light.
- the video projection unit 10 can perform not only a video effect but also an illumination effect.
- the image light and the illumination light may be projected so as to overlap in time and space, or may be projected while being switched at different timings.
- the video projection unit 10 projects a video in which video light and illumination light are superimposed.
- the illumination light source and the video light source may be the same or different.
- the video projection unit 10 may have a light control function and a color control function so that the brightness or color component of the illumination light to be projected can be changed.
- the imaging unit 20 is an imaging device such as a camera, for example, and images an area including the projection plane 2 as an imaging area. That is, the image (captured image) captured by the imaging unit 20 includes the projection plane 2.
- the imaging unit 20 may image an area including the projection plane 2 as an imaging area before projecting an image by the image projection unit 10, or may image an area including an image projected by the image projection unit 10 as an imaging area. May be.
- the imaging unit 20 includes, for example, an imaging element such as a CCD image sensor or a CMOS image sensor, and an optical system.
- the captured image (image data) captured by the imaging unit 20 is transmitted to the processing unit 30.
- the processing unit 30 is a processing device having a function of performing various arithmetic processes.
- the processing unit 30 includes a color correction unit 31, a projection video output unit 32, a distortion correction unit 33, and a luminance correction unit 34.
- the processing unit 30 also has a function of transmitting and receiving signals to and from the video projection unit 10 and the imaging unit 20. That is, the processing unit 30 includes a communication unit such as an interface. Transmission and reception of signals between the processing unit 30 and the video projection unit 10 or the imaging unit 20 may be performed by either wired or wireless. As shown in FIG. 2, for example, a personal computer (PC) can be used as the processing unit 30. In this case, the processing unit 30 and the video projection unit 10 can be connected by, for example, an HDMI (registered trademark) cable, and the processing unit 30 and the imaging unit 20 can be connected by, for example, a USB cable.
- HDMI registered trademark
- the color correcting unit 31 corrects the color of the video (projected video) projected by the video projecting unit 10 using the statistics regarding RGB of at least a part of the target region of the imaging region based on the captured image captured by the imaging unit 20. I do.
- the color correction unit 31 acquires a captured image captured by the imaging unit 20, analyzes the acquired captured image, and calculates a statistic regarding RGB of the captured image. Further, the color correction unit 31 obtains a correction coefficient for the video projected by the video projection unit 10 using the statistics regarding RGB, and performs color correction of the video projected by the video projection unit 10 according to the obtained correction coefficient. As an example, the color correction unit 31 corrects the color so that the color of the video projected on the projection plane 2 by the video projection unit 10 approaches the input video (original video).
- the color correction unit 31 calculates the RGB average (RGB average value) of the entire captured image from the RGB components (RGB signals) of each pixel of the captured image captured by the image capturing unit 20 as a statistic regarding RGB.
- the hue can be obtained by converting the RGB average to HSV (or HSB), and the white balance of the projected image can be adjusted so as to match the hue, thereby obtaining the correction coefficient. Specifically, the gain (saturation) of the color-acquisition component of the calculated hue is increased.
- the statistics regarding RGB are not limited to the RGB average, but may be the median value or the mode value of RGB.
- the color correction unit 31 may calculate a statistic regarding RGB based on a captured image captured in advance by the imaging unit 20 before projecting a video by the video projection unit 10. May be calculated based on a captured image (that is, an image including a projected video) captured by the imaging unit 20 in a state where the image is projected.
- RGB means three primary colors of light, red (R: Red), green (G: Green), and blue (B: Blue), and HSV (or HSB) is a three-color element. They are hue (H: Hue), saturation (S: Saturation), and lightness (V: Value, B: Brightness).
- the projection video output unit 32 outputs a video to be projected on the video projection unit 10 to the video projection unit 10.
- the projected video output unit 32 can output a video that has been color-corrected by the color correction unit 31 or a video that has not been color-corrected by the color correction unit 31.
- the processing unit 30 may have a function of playing back and stopping the video output to the video projecting unit 10.
- the distortion correction unit 33 corrects distortion of the projected image.
- the distortion correction unit 33 corrects, for example, geometric distortion (trapezoid distortion) of an image projected from the image projection unit 10.
- the brightness correction unit 34 corrects the brightness of the projected image.
- the luminance correction unit 34 corrects the luminance of the whole or a part of the video projected from the video projection unit 10.
- the processing unit 30 may include a storage unit (memory).
- the storage unit stores data processed or calculated by the processing unit 30 or stores video (video content) output from the projection video output unit 32 to the video projection unit 10.
- the storage unit is also used when performing control processing by the processing unit 30, and for example, stores data as needed as a work area when the color correction unit 31 and the like perform various data processing and calculations.
- the storage unit may store an application program for controlling the video projecting unit 10 and the imaging unit 20.
- the processing unit 30 may include a video acquisition unit (video input unit) that acquires a video to be projected on the video projection unit 10.
- the video acquisition unit acquires a video to be projected on the video projection unit 10 as an input video.
- the input video may be acquired from a recording medium such as an SD card that is detachably attached to the processing unit 30, or from an external device via a communication line such as an HDMI (registered trademark) cable connected to the processing unit 30. It may be acquired, or may be acquired from an external device using wireless communication such as Wi-Fi.
- the imaging unit 20 captures an area including the projection plane 2 as an imaging area and the color correction unit 31 captures the imaging area based on the captured image captured by the imaging unit 20.
- the image projection unit 10 corrects the color of the image projected by using the statistics regarding RGB of at least a part of the target region in FIG. That is, in the illumination system 1, the vicinity of the projection plane 2 is imaged in advance by the imaging unit 20, the correction coefficient of the projected image is calculated based on the surrounding color and brightness, and the image corrected according to the obtained correction coefficient is projected. Yes.
- the projected image is corrected based on the color and brightness of the walls, floors, and doors around the projection surface 2.
- the illumination system 1 projects an image corrected so that it looks more natural in consideration of the color and brightness of the space in which the image is projected.
- the illumination system 1 it is possible to emphasize a portion that needs to be emphasized, or to control the color and brightness of the ambient light within a range that does not lose the original purpose of the ambient light such as a lighting device. Therefore, it is possible to project a natural image that is easy to see even in a bright environment.
- the color correction unit 31 calculates a statistic regarding RGB with an area excluding the projection plane 2 on which an image is projected out of the imaging area captured by the imaging unit 20 as a target area. May be used to correct the color of the image projected by the image projection unit 10.
- the projection surface 2 is masked to calculate the statistic about RGB of the captured image, and the video projection unit 10 A correction coefficient for the projected image is obtained, and color correction of the projected image is performed according to the obtained correction coefficient. That is, the statistic about RGB is calculated by analyzing the captured image excluding the projection plane 2.
- a region indicated by cross line hatching is a region subjected to mask processing.
- the area of the projection plane 2 in the captured image may be specified by the user based on the captured image, or may be specified by calculating by a three-dimensional measurement or the like from the captured image obtained by turning on / off the video projection unit 10 Also good.
- the color correction unit 31 calculates a statistic regarding RGB using only a specified range (specified range) of the imaging region captured by the imaging unit 20 as a target region, and this statistic is calculated.
- the color of the video projected by the video projection unit 10 may be used.
- the processing unit 30 analyzes a captured image captured by the imaging unit 20 with a rectangular region indicated by hatching as a specified range, statistics regarding RGB are only obtained for the region in the range specified by the user in the captured image. The amount is calculated, a correction coefficient for the image projected by the image projection unit 10 is obtained, and color correction of the projected image is performed according to the obtained correction coefficient.
- the designated range is a part of the door, but the designated range is not limited to this and may be a floor or a wall.
- the designated range is not limited to being designated by the user, but may be automatically selected by a computer or may be a predetermined area set in advance.
- the color correction unit 31 includes a statistic related to RGB in the projection plane 2 in the imaging region captured by the imaging unit 20 and a statistic related to RGB in a region other than the projection plane 2 in the imaging region. And color correction of an image projected by the image projection unit 10 may be performed.
- the first RGB-related region in the region of the projection plane 2 (the region indicated by the hatching of the right-down diagonal line) in the captured image.
- Statistic and second statistic related to RGB in a region other than the projection plane 2 in the captured image are calculated, and the calculated first statistic and the second statistic are compared.
- a correction coefficient for the image projected by the image projection unit 10 is obtained, and color correction of the projected image is performed according to the obtained correction coefficient.
- RGB averages are obtained for each of the region of the projection surface 2 and the region other than the projection surface 2 in the captured image as the statistics regarding RGB.
- the R component is multiplied by (R 20 / R 10 ) as a correction coefficient
- the B component is multiplied by (B 20 / B 10 ) as a correction coefficient to project a corrected image.
- the color correction unit 31 may divide the imaging region captured by the imaging unit 20 into a plurality of small regions, and obtain a correction coefficient for the projected video based on the analysis of the plurality of small regions. .
- the color correction unit 31 calculates a statistic regarding RGB of the target area by giving weights in order from a small area close to the projection plane 2 to a small area far from the projection plane 2, and video projection is performed using this statistic.
- the color of the image projected by the unit 10 can be corrected.
- the captured image is divided into a plurality of blocks (small regions) in a matrix and an area including the projection plane 2 ( The block in the hatched area) is weighted to calculate the average of RGB (statistics related to RGB) for all the blocks, and the correction coefficient for the image projected by the image projection unit 10 is obtained. To correct the color of the projected image.
- RGB statistics related to RGB
- weighting may be performed separately for bright blocks and dark blocks, instead of weighting according to the distance from the projection plane 2.
- the color correction unit 31 may divide the imaging region imaged by the imaging unit 20 into a plurality of small regions, and obtain the correction coefficient of the projected video based on the analysis of each small region.
- the color correction unit 31 can perform color correction of the image projected by the image projection unit 10 using the maximum cluster obtained by cluster analysis based on the statistics regarding RGB in each of the plurality of small regions.
- the captured image captured by the imaging unit 20 is analyzed by the processing unit 30, the captured image is divided into a plurality of blocks (small areas) in a matrix and an RGB average ( (Statistics for RGB) are calculated, and similar blocks are collected by cluster analysis to obtain the maximum cluster. Then, a correction coefficient for the image projected by the image projection unit 10 is obtained with the maximum cluster as a reference, and color correction of the projected image is performed according to the obtained correction coefficient.
- an RGB average (Statistics for RGB)
- a distortion correction unit 33 that corrects distortion of the projected image and a luminance correction unit 34 that corrects the luminance of the projected image are provided.
- the shape of the small area (block) obtained by dividing the captured image captured by the imaging unit 20 into a plurality of squares is a square, but is not limited thereto.
- FIG. 9 is a diagram schematically illustrating a specific application example of the illumination system 1A according to the second embodiment.
- FIG. 10 is a diagram illustrating an example of a schematic configuration of the illumination system 1A and an image captured by the illumination system 1A.
- FIG. 11 is a block diagram showing a configuration of the illumination system 1A.
- the illumination system 1A includes a video projection unit 10, an imaging unit 20, a processing unit 30A, and an illumination unit 40.
- the illumination system 1A in the present embodiment is configured to further include an illumination control unit 35 and an illumination unit 40 with respect to the illumination system 1 in the first embodiment.
- the illumination control unit 35 is included in the processing unit 30A, for example.
- the processing unit 30A has a configuration including an illumination control unit 35 with respect to the processing unit 30 in the first embodiment.
- the illumination control unit 35 controls the illumination unit 40.
- the illumination control unit 35 controls the illumination unit 40 so that the illumination unit 40 emits illumination light with a complementary color of the hue calculated by the color correction unit 31.
- the illumination control unit 35 transmits a control signal for controlling the illumination unit 40 to the illumination unit 40.
- the illumination unit 40 is an illumination device that emits illumination light, and is, for example, an illumination device such as a ceiling or a downlight installed on the ceiling of a room.
- the illumination unit 40 may be a spotlight installed on the wall surface of the room. Illumination light emitted from the illumination unit 40 is applied to the projection plane 2.
- the illumination unit 40 has a light source such as an LED or a lamp.
- the illumination unit 40 has a light source different from the light source of the video projection unit 10. That is, the illumination unit 40 emits illumination light from a light source different from the light source of the video projection unit 10.
- the illumination light of the illumination unit 40 is, for example, white light, but is not limited to white light.
- the illumination unit 40 includes a red light source, a green light source, and a blue light source, and is capable of RGB control. That is, the red light source, the green light source, and the blue light source can be controlled independently.
- the red light source, the green light source, and the blue light source may be LED light sources or existing lamp light sources.
- the illumination unit 40 has a light control function and a color control function, and is configured to control at least one of the brightness and color components of the illumination light.
- the illumination unit 40 can increase or decrease the light output of the illumination light based on the control signal from the illumination control unit 35 of the processing unit 30.
- the illumination unit 40 can selectively strengthen or weaken at least one of the red component, the green component, and the blue component of the illumination light based on the control signal from the illumination control unit 35.
- the illumination unit 40 configured in this way is controlled based on a control signal transmitted from the illumination control unit 35.
- the illumination unit 40 emits illumination light that is a complementary color of the hue converted from the RGB statistics used for color correction by the color correction unit 31.
- the color correction unit 31 calculates the RGB average of the entire captured image from the RGB components of each pixel of the captured image captured by the image capturing unit 20 as a statistic regarding RGB, as in the first embodiment.
- the hue is obtained by HSV conversion of the RGB average.
- the illumination control unit 35 transmits a control signal to the illumination unit 40 so that the illumination unit 40 irradiates with the complementary color of the obtained hue.
- the illumination unit 40 emits illumination light of a complementary color with the hue obtained by the color correction unit 31.
- the illumination system 1A further irradiates the first embodiment with illumination light that is a complementary color of the hue converted from the RGB statistics used for color correction by the color correction unit 31.
- the illumination part 40 to be provided is provided.
- the distortion correction unit 33 and the luminance correction unit 34 are provided in the processing unit 30, but the present invention is not limited to this.
- the distortion correction unit 33 and the luminance correction unit 34 may be provided in the video projection unit 10.
- the video acquisition unit is provided in the processing unit 30, but the present invention is not limited to this.
- the video acquisition unit may be directly provided in the video projection unit 10, and an input video may be directly input to the video projection unit 10.
- the illumination system in the first and second embodiments may be used outdoors.
- the lighting system in the first and second embodiments may be used in a dark environment.
- each component in the processing unit 30 may be a circuit. These circuits may constitute one circuit as a whole, or may be separate circuits. Each of these circuits may be a general-purpose circuit or a dedicated circuit.
- each process described as the operation of each component used in the lighting system such as the processing unit 30 can be executed by a computer.
- a computer executes each of the above processes by executing a program using hardware resources such as a processor (CPU), a memory, and an input / output circuit.
- each process is executed by the processor obtaining data to be processed from a memory or an input / output circuit or the like and calculating the data, or outputting the calculation result to the memory or the input / output circuit or the like.
- the processing unit 30 is a notebook PC.
- the lighting system may be realized as a lighting control method.
- the steps in the lighting control method can be executed by a computer.
- the program for executing each of the above processes or steps may be recorded on a non-transitory recording medium such as a computer-readable CD-ROM.
- the computer reads the program from the non-temporary recording medium and executes the program to execute each process.
- the method in the lighting system can be realized as a program that causes a computer to execute the method, or can be realized as a computer-readable recording medium that records such a program.
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- Projection Apparatus (AREA)
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Transforming Electric Information Into Light Information (AREA)
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Abstract
Description
実施の形態1に係る照明システム1について、図1~図3を用いて説明する。図1は、実施の形態1に係る照明システム1の具体的な適用例を模式的に示す図である。図2は、同照明システム1の概略構成と同照明システム1による撮像画像の一例を示す図である。図3は、同照明システム1の構成を示すブロック図である。
次に、実施の形態2に係る照明システム1Aについて、図9~図11を用いて説明する。図9は、実施の形態2に係る照明システム1Aの具体的な適用例を模式的に示す図である。図10は、同照明システム1Aの概略構成と同照明システム1Aによる撮像画像の一例を示す図である。図11は、同照明システム1Aの構成を示すブロック図である。
以上、本発明に係る照明システムについて、実施の形態に基づいて説明したが、本発明は、上記の実施の形態に限定されるものではない。
2 投影面
10 映像投影部
20 撮像部
31 色補正部
33 歪補正部
34 輝度補正部
40 照明部
Claims (9)
- 投影面に映像を投影する映像投影部と、
前記投影面を含む領域を撮像領域として撮像する撮像部と、
前記撮像部で撮像した撮像画像をもとに前記撮像領域の少なくとも一部の対象領域のRGBに関する統計量を用いて前記映像投影部で投影する映像の色補正を行う色補正部とを備える、
照明システム。 - 前記色補正部は、前記撮像領域のうち前記映像を投影する投影面を除外した領域を前記対象領域として前記映像投影部で投影する映像の色補正を行う、
請求項1記載の照明システム。 - 前記色補正部は、前記撮像領域のうち指定した範囲の領域だけを前記対象領域として前記映像投影部で投影する映像の色補正を行う、
請求項1記載の照明システム。 - 前記色補正部は、前記撮像領域のうち前記投影面におけるRGBに関する統計量と、前記撮像領域のうち前記投影面以外の領域におけるRGBに関する統計量とを比較して、前記映像投影部で投影する映像の色補正を行う、
請求項1記載の照明システム。 - 前記色補正部は、前記撮像領域を複数の小領域に分割し、前記投影面に近い前記小領域から前記投影面に遠い前記小領域の順に重みを持たせて前記対象領域のRGBに関する統計量を算出し、当該統計量を用いて前記映像投影部で投影する映像の色補正を行う、
請求項1記載の照明システム。 - 前記色補正部は、前記撮像領域を複数の小領域に分割し、前記複数の小領域の各々における前記RGBに関する統計量によるクラスタ分析によって得られた最大のクラスタを用いて前記映像投影部で投影する映像の色補正を行う、
請求項1記載の照明システム。 - 前記映像投影部の光源とは異なる光源によって照明光を照射する照明部を備え、
前記照明部は、前記色補正に用いる前記RGBに関する統計量から変換された色相の補色となる照明光を照射する、
請求項1乃至6の何れか1項に記載の照明システム。 - 投影する映像の歪を補正する歪補正部と、
投影する映像の輝度を補正する輝度補正部とを備える、
請求項1乃至7の何れか1項に記載の照明システム。 - コンピュータを、請求項1乃至8の何れか1項に記載の照明システムとして機能させるためのプログラム。
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EP16838736.3A EP3344015A1 (en) | 2015-08-26 | 2016-07-05 | Illumination system and program |
US15/747,962 US20180220112A1 (en) | 2015-08-26 | 2016-07-05 | Lighting system and program |
JP2017536190A JPWO2017033384A1 (ja) | 2015-08-26 | 2016-07-05 | 照明システム及びプログラム |
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Cited By (3)
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WO2019159880A1 (ja) * | 2018-02-16 | 2019-08-22 | Necプラットフォームズ株式会社 | 映像プロジェクタおよび映像表示方法 |
JP2020166657A (ja) * | 2019-03-29 | 2020-10-08 | ブラザー工業株式会社 | 印刷画像システム、プログラム、非一時的なコンピュータ可読媒体、及び印刷画像システムの制御方法 |
US11354075B2 (en) | 2019-03-29 | 2022-06-07 | Brother Kogyo Kabushiki Kaisha | Non-transitory computer-readable medium storing computer-readable instructions that cause processor of print image control device to set print position, print image control device that sets print position, and control method of print image control device that sets print position |
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WO2019058521A1 (ja) * | 2017-09-22 | 2019-03-28 | popIn株式会社 | プロジェクタおよびプロジェクタシステム |
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- 2016-07-05 US US15/747,962 patent/US20180220112A1/en not_active Abandoned
- 2016-07-05 EP EP16838736.3A patent/EP3344015A1/en not_active Withdrawn
- 2016-07-05 JP JP2017536190A patent/JPWO2017033384A1/ja active Pending
- 2016-07-05 WO PCT/JP2016/003198 patent/WO2017033384A1/ja active Application Filing
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US11354075B2 (en) | 2019-03-29 | 2022-06-07 | Brother Kogyo Kabushiki Kaisha | Non-transitory computer-readable medium storing computer-readable instructions that cause processor of print image control device to set print position, print image control device that sets print position, and control method of print image control device that sets print position |
JP7183918B2 (ja) | 2019-03-29 | 2022-12-06 | ブラザー工業株式会社 | 印刷画像システム、プログラム、非一時的なコンピュータ可読媒体、及び印刷画像システムの制御方法 |
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