WO2013186994A1 - 投射型投影装置、光防眩方法、および光防眩用プログラム - Google Patents
投射型投影装置、光防眩方法、および光防眩用プログラム Download PDFInfo
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- WO2013186994A1 WO2013186994A1 PCT/JP2013/003223 JP2013003223W WO2013186994A1 WO 2013186994 A1 WO2013186994 A1 WO 2013186994A1 JP 2013003223 W JP2013003223 W JP 2013003223W WO 2013186994 A1 WO2013186994 A1 WO 2013186994A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/012—Head tracking input arrangements
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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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/48—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus
- G03B17/54—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus with projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
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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]
- H04N9/3191—Testing thereof
- H04N9/3194—Testing thereof including sensor feedback
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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
- G03B21/14—Details
- G03B21/26—Projecting separately subsidiary matter simultaneously with main image
Definitions
- the present invention relates to a projection type projection device, a light anti-glare method, and a light anti-glare program for reducing the glare of light projected when an image is projected.
- Non-Patent Document 1 describes a projector system that adjusts light of a projector so that a speaker does not dazzle even when standing in front of the projector.
- the projector system described in Non-Patent Document 1 detects a speaker's face area from an image including a screen and the speaker, and displays a circular black mask image superimposed on the detected area.
- Non-Patent Document 2 describes a person detection method that improves the accuracy of detecting a person in a high illumination environment.
- brightness adjustment is performed between a projected image and a captured image obtained by capturing the projected image with a camera, and a difference image is created between the images after brightness adjustment, thereby Is detected.
- the projected slide is an important material for the viewer. Therefore, it is desirable that the range in which the projected light is reduced is as close as possible to the user's head. Therefore, it is desirable to appropriately recognize the head of the presenter and reduce the light at that portion.
- the presenter standing in front of the slide does not always stay in one place and explain.
- the presenter may change the standing position depending on the content of the slide.
- Non-Patent Document 1 has a problem that when the presenter moves, the portion that reduces light shifts from the actual face position of the presenter, and the glare cannot be reduced.
- the present invention accurately reduces the glare of light projected on the person even if the person present in the image projection direction moves. It is an object of the present invention to provide a projection type projection apparatus, a light anti-glare method, and a light anti-glare program that can be reduced.
- a projection type projection apparatus includes a head detection unit that detects a head region of a moving body from a captured image that is an image obtained by capturing both a projection image projected from the projection unit and the moving body, and a detection from the captured image.
- the motion detection means for calculating the moving direction and the moving amount of the moving body based on the time-series change of the head area, and the glare in each pixel of the projection image corresponding to the head area are reduced.
- An anti-glare processing means for performing processing, and the anti-glare processing means changes pixels for performing processing for reducing glare based on a moving direction and a moving amount.
- the anti-glare method detects a head region of a moving body from a captured image that is an image obtained by capturing both a projected image projected from a projection unit and the moving body, and detects the head region detected from the captured image.
- the movement direction and amount of the head of the moving object are calculated based on the time series change of the above, and the process of reducing glare is performed on each pixel of the projection image corresponding to the head area. Based on the direction and the amount of movement, the pixel for performing the process of reducing glare is changed.
- An anti-glare program includes a head detection process for detecting a head region of a moving body from a captured image, which is an image obtained by capturing both a projection image projected from a projection unit and the moving body on a computer. Based on time-series changes in the head region detected from the image, motion detection processing for calculating the moving direction and amount of the moving body's head, and glare in each pixel of the projection image corresponding to the head region An anti-glare process for performing a process for reducing the brightness is executed, and a pixel for performing the process for reducing the glare is changed based on the moving direction and the movement amount in the anti-glare process.
- the present invention when projecting an image by projecting light with high illuminance, even if a person present in the projection direction of the image moves, the glare of the light projected on the person is accurately detected. Can be reduced.
- FIG. 1 is a block diagram showing an embodiment of a projection type projection apparatus according to the present invention.
- the projection type projection apparatus of the present embodiment includes a geometric correction unit 101, a head detection unit 104, a motion detection unit 107, and an anti-glare processing unit 105.
- the geometric correction unit 101 inputs an image captured by the camera (hereinafter referred to as a camera image) and matches the shape of a slide image (hereinafter referred to as a slide image) projected on the screen by the projection type projector. Geometrically correct the camera image.
- the geometric correction unit 101 geometrically corrects the camera image captured by the camera into a rectangle according to the shape of the slide image.
- the camera image geometrically corrected by the geometric correction unit 101 may be referred to as a geometrically corrected image.
- the geometric correction method for example, a widely known general method such as a method using a projective transformation matrix is used.
- the camera image is an image of a slide image projected on the screen.
- the camera image means an image obtained by photographing the presenter together with the slide image.
- it when it is described as a camera image, it means an image in which a slide image is taken or an image in which both a slide image and a presenter are taken.
- the presenter photographed as a camera image is an object that moves while projecting a slide image
- the presenter may be referred to as a moving body in the following description.
- the slide video is sometimes referred to as the background
- the presenter present before the slide video is sometimes referred to as the foreground.
- the head detection means 104 detects the head region of the moving object from the camera image.
- the head detection unit 104 may detect the head by pattern recognition using a template or a feature amount describing a head pattern viewed from various directions of 360 degrees.
- region from the image containing a person etc. is widely known, detailed description is abbreviate
- the head detection unit 104 inputs information indicating the detected head region (hereinafter, also referred to as head information) to the motion detection unit 107 and the anti-glare processing unit 105.
- the motion detection means 107 detects the movement of the moving body. Specifically, the motion detection means 107 calculates the moving direction and moving amount of the head of the moving body based on the time-series change of the head region detected from the camera image.
- the moving amount of the head is, for example, the speed at which the head moves.
- the motion detection unit 107 compares the head information of a certain frame input from the head detection unit 104 with the head information of a frame input before that, and the direction and amount of movement of the head. May be calculated. That is, the motion detection unit 107 may calculate the moving direction and the moving amount of the moving body based on the change between the frames of the head region detected from the camera image. In this case, the motion detection unit 107 can calculate the amount of movement of the moving body by calculating the difference between the positions where the head is detected between frames (for example, the center of the head and the position of the center of gravity).
- the motion detection unit 107 may calculate the movement direction and the movement distance by using a block matching method or a template matching method for the corresponding points of the head between frames.
- a block matching method or a template matching method for the corresponding points of the head between frames.
- the motion detection unit 107 may use another method as long as it can calculate the moving direction and the moving amount of the head from the information indicating the position of the head region that changes in time series.
- Anti-glare processing means 105 performs a process of reducing glare on each pixel of the slide image corresponding to the head region. At that time, the anti-glare processing unit 105 changes the pixel that performs the process of reducing the glare based on the moving direction and the moving amount of the head calculated by the motion detecting unit 107.
- the anti-glare processing means 105 changes the position or shape of a region where luminance is reduced (hereinafter also referred to as a dimming region) based on the moving direction and moving amount of the head.
- the anti-glare processing unit 105 may move the dimming region in the moving direction, or may extend the dimming region in the moving direction.
- the anti-glare processing unit 105 may apply a horizontally long ellipse having a long axis in proportion to the amount of movement as the dimming region.
- the anti-glare processing means 105 may determine the shape of the dimming region (for example, the shape of an ellipse) every time the anti-glare processing is performed.
- the anti-glare processing unit 105 may extend the dimming region in the moving direction when the moving amount becomes larger than a predetermined threshold (that is, when the moving body speed increases), for example. By doing in this way, since the glare-proof process is performed in the direction which a mobile body moves, the glare of the light projected on a mobile body can be reduced accurately.
- the anti-glare processing means 105 may contract the dimming region when the movement amount becomes smaller than a predetermined threshold (that is, when the speed of the moving body becomes slow). For example, the anti-glare processing unit 105 may contract the dimming region when the moving body stops. By doing so, unnecessary anti-glare processing is suppressed, so that a slide image can be projected efficiently.
- a predetermined threshold that is, when the speed of the moving body becomes slow.
- the anti-glare processing means 105 may determine the shape of the dimming region according to the moving direction and the moving amount. Further, the anti-glare processing unit 105 may perform recalculation of the dimming area when the acceleration (that is, the amount of change in the speed of the moving body) exceeds a predetermined range threshold.
- FIG. 2 is an explanatory diagram showing an example of changing the position of the dimming region.
- FIG. 3 is an explanatory diagram showing an example of changing the shape of the dimming region.
- the anti-glare processing unit 105 sets the calculated movement amount. Accordingly, the dimming area may be moved in the right direction.
- the anti-glare processing unit 105 may be modified to expand the dimming area in the right direction A2 (or the lower right direction A3) according to the calculated movement amount.
- the anti-glare processing means 105 may reduce the luminance value of the pixels included in the head region uniformly (for example, the luminance value is 0), such as an ellipse or a circle whose luminance asymptotically approaches the background color as the distance from the center increases. Luminance may be reduced by placing a pattern figure on the head region. By doing so, unnecessary anti-glare processing is suppressed, so that a slide image can be efficiently projected. Moreover, since the boundary of the dimming area is blurred, the visual impact of the dimming area can be reduced. The dimming area does not need to coincide with the head area, and may be a rectangular area near the center of the head area.
- the anti-glare processing unit 105 may reduce the luminance of a region where the eye in front of the head is likely to exist. Also, considering that the presenter is usually facing the direction of movement, the anti-glare processing means 105 is used even when the head detection means 104 does not detect the head orientation. It may be determined that there is a high possibility that an eye area exists in the movement direction detected by the motion detection unit 107 in the face area. In this case, the anti-glare processing means 105 may reduce the luminance around the eye area.
- the glare of the light projected on a moving body can be accurately reduced by changing the shape which reduces a brightness
- the anti-glare processing means 105 may perform a process of smoothing changes in the position, size, and shape of the dimming region in the time direction (hereinafter also referred to as a smoothing process). Good.
- the current time is t
- the position of the dimming area on the image at time t ⁇ n is V (t ⁇ n)
- the position of the dimming area calculated in consideration of the movement of the head at the current time t is X ( t).
- the position V (t) after the dimming region at time t is smoothed in the time direction is calculated using Equation 1 shown below.
- V (t) S (X (t), V (t-1), V (t-2), ..., V (t-N) N) (Equation 1)
- Equation 1 The right side of Equation 1 represents a function that smoothes the position.
- Expression 1 can be expressed as Expression 2 shown below.
- V (t) w 0 X (t) + w 1 V (t-1) + w 2 V (t-2) +... + w N V (tN) (Formula 2)
- Equation 2 w n ( ⁇ 0) is a weighting coefficient and satisfies the following relationship.
- the function for smoothing the position is not limited to the content on the right side of Equation 1.
- the function for smoothing the position may be a function expressed in another form as long as it has a low-pass characteristic.
- the anti-glare processing unit 105 smoothes the change in the position of the dimming region in the time direction. Note that the anti-glare processing unit 105 may perform the smoothing process on the change in the size and shape of the dimming region in the same manner.
- the anti-glare processing means 105 may change the size of the dimming region by smoothing the parameter for determining the size in the time direction in the same manner as the method of smoothing the position. For example, when the dimming area is circular, the anti-glare processing unit 105 may use the radius of the circle as a parameter for determining the size.
- the anti-glare processing means 105 may change the size of the dimming region by smoothing the parameter for determining the shape in the time direction by a method similar to the method of smoothing the position. For example, when the dimming region is elliptical, the anti-glare processing unit 105 may use the major axis and minor axis lengths of the ellipse and the direction thereof as parameters for determining the size.
- the anti-glare processing means 105 may change the number of weighting coefficients (N described above) for smoothing in the time direction and the value of the weighting coefficient for each of the position, size, and shape. Good. Further, the anti-glare processing unit 105 may perform the above-described time-direction smoothing process for each person when a plurality of persons exist in the screen.
- the anti-glare processing means 105 does not calculate a dimming area each time, but holds in advance a pattern of an area (for example, an ellipse) that reduces glare according to the moving direction and the moving amount.
- the pattern may be selected according to the moving direction and moving amount calculated by the detecting means 107.
- the anti-glare processing unit 105 may reduce the glare by superimposing the selected elliptical pattern on the position corresponding to the head region of the slide image.
- examples of the elliptical pattern to be held in advance include eight patterns of up / down / left / right and diagonal directions, and patterns defined for each predetermined range of movement.
- the anti-glare processing means 105 may select a pattern that has the narrowest angle with the movement direction and that corresponds to the calculated movement amount range.
- the pattern to be held in advance is not limited to an ellipse, and may be a polygon such as a rectangle.
- the calculation load can be reduced as compared with the method of calculating the area where the anti-glare process is performed each time.
- the anti-glare processing means 105 takes glare into account in consideration of processing delay caused by processing performed by the projection type projection device (specifically, the geometric correction means 101, the head detection means 104, the motion detection means 107, etc.). You may change the pixel which performs the process to reduce. Specifically, the anti-glare processing means 105 predicts the position shifted by the amount of movement corresponding to the processing delay with respect to the moving direction of the head as the head of the presenter at the time of projecting the slide image. Therefore, the anti-glare processing unit 105 may perform a process of reducing glare for each pixel of the slide image corresponding to the predicted position.
- the glare-proof process means 105 may estimate the head position of a presenter based on the preset processing delay.
- the anti-glare processing means 105 may dynamically calculate a processing delay due to processing performed by the projection type projection apparatus.
- the anti-glare processing means 105 may calculate the processing delay by calculating the time from irradiating a specific pattern to the slide until the pattern is captured as a camera image, for example.
- the anti-glare processing unit 105 may calculate the processing delay by measuring the shift between the cut point of the slide image and the cut point of the camera image at the slide switching position.
- the anti-glare processing means 105 has higher processing delay accuracy if it is statistically calculated (for example, calculating the average, mode, and median value) not only from a single measurement result but also from a plurality of measurement results. Therefore, it is more preferable.
- the geometric correction means 101, the head detection means 104, the motion detection means 107, and the anti-glare processing means 105 are realized by a CPU of a computer that operates according to a program (light anti-glare program).
- the program is stored in a storage unit (not shown) of the projection type projection apparatus, and the CPU reads the program, and in accordance with the program, the geometric correction unit 101, the head detection unit 104, the motion detection unit 107, and the anti-glare unit.
- the processing unit 105 may operate. Further, each of the geometric correction unit 101, the head detection unit 104, the motion detection unit 107, and the anti-glare processing unit 105 may be realized by dedicated hardware.
- FIG. 4 is a flowchart showing an operation example of the projection type projection apparatus of the present embodiment.
- Geometric correction unit 101 corrects the camera image (step S21).
- the head detecting means 104 detects the head area of the moving body from the camera image (step S22).
- the motion detection unit 107 calculates the moving direction and the moving amount of the head of the moving body based on the time-series change of the head region detected from the camera image (step S23).
- the anti-glare processing means 105 performs a process of reducing glare on each pixel of the slide image corresponding to the head region based on the calculated moving direction and moving amount (step S24). For example, when the moving amount of the head exceeds a predetermined first threshold value, the anti-glare processing unit 105 may expand the range of pixels that perform processing for reducing glare in the moving direction. At this time, the extent of expansion may be increased according to the amount of movement. For example, the degree of expansion may be controlled in proportion to the amount of movement.
- the anti-glare processing unit 105 may contract the range of pixels for performing processing for reducing glare. At this time, when the eye area of the moving object is specified, the anti-glare processing unit 105 may contract the range around the eye area.
- the first threshold value is set to a value larger than the second threshold value.
- the head detection unit 104 detects the head region of the moving body from the camera image, and the motion detection unit 107 performs time series of the head region detected from the camera image. Based on this change, the moving direction and moving amount of the head of the moving body are calculated. And the glare-proof process means 105 performs the process which reduces glare to each pixel of the slide image corresponding to a head area
- the motion detection unit 107 detects the amount of movement of the presenter, and the anti-glare processing unit 105 shifts the region for reducing the brightness forward in the direction of movement of the presenter in consideration of the amount of movement and the processing delay. . That is, the effect of processing delay is reduced by the anti-glare processing means 105 predicting the position of the head. Therefore, even when the presenter is moving, glare caused by the projected light can be reduced.
- FIG. 5 is a block diagram showing an outline of a projection type projection apparatus according to the present invention.
- a projection type projection apparatus according to the present invention is a captured image (for example, a camera) that is an image of a projection image (for example, a slide image) projected from a projection means (for example, a projector) and a moving body (for example, a person).
- Head detection means 81 for example, head detection means 104) for detecting the head area of the moving body from the image) and the time series change of the head area detected from the captured image.
- Motion detection means 82 for example, motion detection means 107) for calculating the movement direction and amount of movement of the part, and processing for reducing glare (for example, reducing brightness) in each pixel of the projection image corresponding to the head region
- Anti-glare processing means 83 for example, anti-glare processing means 105.
- the anti-glare processing means 83 changes the pixel which performs the process which reduces glare based on the moving direction and the moving amount.
- the anti-glare processing means 83 may extend the range of pixels for performing the process of reducing the glare in the moving direction when the moving amount of the head exceeds a predetermined first threshold. With such a configuration, since the anti-glare process is performed in the direction in which the moving body moves, the glare of light projected on the moving body can be accurately reduced. At this time, the extent of expansion may be increased according to the amount of movement. For example, the degree of expansion may be controlled in proportion to the amount of movement.
- the anti-glare processing means 83 may contract the range of pixels to be processed to reduce the glare when the moving amount of the head falls below a predetermined second threshold. With such a configuration, unnecessary anti-glare processing is suppressed, so that a slide image can be efficiently projected.
- the anti-glare processing means 83 may make the luminance of each pixel asymptotic to the background color as the distance from the center of the head region increases. With such a configuration, since the anti-glare process is performed in the direction in which the moving body moves, the glare of light projected on the moving body can be accurately reduced. Moreover, since the boundary of the dimming area is blurred, the visual impact of the dimming area can be reduced.
- the anti-glare processing unit 83 selects a predetermined pattern as a region for reducing the glare based on the moving direction and the moving amount, and reduces the glare for the pixels in the region specified by the pattern. May be performed.
- the pattern of the area where the anti-glare process is performed in advance the calculation load can be reduced as compared with the method of calculating the area where the anti-glare process is performed each time.
- the present invention is preferably applied to a projection type projection apparatus that reduces glare of light projected when an image is projected.
- Geometric correction means 101 Geometric correction means 104 Head detection means 105 Anti-glare processing means 107 Motion detection means
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Abstract
Description
104 頭部検出手段
105 防眩処理手段
107 動き検知手段
Claims (10)
- 投影手段から投影される投影画像と移動体とを共に撮影した画像である撮影画像から移動体の頭部領域を検出する頭部検出手段と、
前記撮影画像から検出された頭部領域の時系列の変化に基づいて、前記移動体の頭部の移動方向および移動量を算出する動き検知手段と、
前記頭部領域に対応する前記投影画像の各画素に眩しさを低減させる処理を行う防眩処理手段とを備え、
前記防眩処理手段は、前記移動方向および移動量に基づいて、前記眩しさを低減させる処理を行う画素を変化させる
ことを特徴とする投射型投影装置。 - 防眩処理手段は、頭部の移動量が予め定めた第一の閾値を超えた場合、眩しさを低減させる処理を行う画素の範囲を移動方向に拡張させる
請求項1記載の投射型投影装置。 - 防眩処理手段は、頭部の移動量が予め定めた第二の閾値を下回った場合、眩しさを低減させる処理を行う画素の範囲を収縮させる
請求項1または請求項2記載の投射型投影装置。 - 防眩処理手段は、頭部領域の中心から離れるにつれて各画素の輝度を背景色に漸近させる
請求項1から請求項3のうちのいずれか1項に記載の投射型投影装置。 - 防眩処理手段は、眩しさを低減させる処理を行う画素の範囲の変化を時間方向に平滑化する
請求項1から請求項4のうちのいずれか1項に記載の投射型投影装置。 - 防眩処理手段は、移動方向および移動量に基づいて、眩しさを低減させる領域として予め定められたパタンを選択し、当該パタンにより特定される領域の画素に眩しさを低減させる処理を行う
請求項1記載の投射型投影装置。 - 投影手段から投影される投影画像と移動体とを共に撮影した画像である撮影画像から移動体の頭部領域を検出し、
前記撮影画像から検出された頭部領域の時系列の変化に基づいて、前記移動体の頭部の移動方向および移動量を算出し、
前記頭部領域に対応する前記投影画像の各画素に眩しさを低減させる処理を行い、当該処理において、前記移動方向および移動量に基づいて、眩しさを低減させる処理を行う画素を変化させる
ことを特徴とする光防眩方法。 - 頭部の移動量が予め定めた第一の閾値を超えた場合、眩しさを低減させる処理を行う画素の範囲を移動方向に拡張させる
請求項7記載の光防眩方法。 - コンピュータに、
投影手段から投影される投影画像と移動体とを共に撮影した画像である撮影画像から移動体の頭部領域を検出する頭部検出処理、
前記撮影画像から検出された頭部領域の時系列の変化に基づいて、前記移動体の頭部の移動方向および移動量を算出する動き検知処理、および、
前記頭部領域に対応する前記投影画像の各画素に眩しさを低減させる処理を行う防眩処理を実行させ、
前記防眩処理で、前記移動方向および移動量に基づいて、前記眩しさを低減させる処理を行う画素を変化させる
ことを特徴とする光防眩用プログラム。 - コンピュータに、
防眩処理で、頭部の移動量が予め定めた第一の閾値を超えた場合、眩しさを低減させる処理を行う画素の範囲を移動方向に拡張させる
請求項9記載の光防眩用プログラム。
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US14/394,819 US20150102998A1 (en) | 2012-06-15 | 2013-05-21 | Projection-type projector, anti-glare method, and program for anti-glare |
JP2014520889A JPWO2013186994A1 (ja) | 2012-06-15 | 2013-05-21 | 投射型投影装置、光防眩方法、および光防眩用プログラム |
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WO2020148936A1 (ja) * | 2019-01-16 | 2020-07-23 | 清水建設株式会社 | 表示制御装置、表示システム、及び表示方法 |
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WO2017064838A1 (ja) * | 2015-10-14 | 2017-04-20 | パナソニックIpマネジメント株式会社 | 顔検出装置およびこれを備えた顔検出システムならびに顔検出方法 |
US10276210B2 (en) | 2015-11-18 | 2019-04-30 | International Business Machines Corporation | Video enhancement |
US11042724B2 (en) * | 2016-12-27 | 2021-06-22 | Sharp Kabushiki Kaisha | Image processing device, image printing device, imaging device, and non-transitory medium |
DE102018010099B4 (de) * | 2018-12-21 | 2021-12-02 | Diehl Aerospace Gmbh | Vermeiden der Blendung von Personen durch eine Lichtquelle |
CN115175420A (zh) * | 2022-06-10 | 2022-10-11 | 上海丹诺西诚智能科技有限公司 | 一种车内投影灯具防眩光方法及*** |
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JP2000305481A (ja) * | 1999-04-21 | 2000-11-02 | Seiko Epson Corp | 投写型表示装置及び情報記憶媒体 |
JP2009031334A (ja) * | 2007-07-24 | 2009-02-12 | Sharp Corp | プロジェクタ及びプロジェクタの投射方法 |
JP2010034820A (ja) * | 2008-07-29 | 2010-02-12 | Seiko Epson Corp | プロジェクタ、プロジェクタの制御方法、及び、制御プログラム |
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US8493298B2 (en) * | 2003-11-01 | 2013-07-23 | Silicon Quest Kabushiki-Kaisha | Video display system |
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US8064639B2 (en) * | 2007-07-19 | 2011-11-22 | Honeywell International Inc. | Multi-pose face tracking using multiple appearance models |
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- 2013-05-21 WO PCT/JP2013/003223 patent/WO2013186994A1/ja active Application Filing
- 2013-05-21 US US14/394,819 patent/US20150102998A1/en not_active Abandoned
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JP2000305481A (ja) * | 1999-04-21 | 2000-11-02 | Seiko Epson Corp | 投写型表示装置及び情報記憶媒体 |
JP2009031334A (ja) * | 2007-07-24 | 2009-02-12 | Sharp Corp | プロジェクタ及びプロジェクタの投射方法 |
JP2010034820A (ja) * | 2008-07-29 | 2010-02-12 | Seiko Epson Corp | プロジェクタ、プロジェクタの制御方法、及び、制御プログラム |
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WO2020148936A1 (ja) * | 2019-01-16 | 2020-07-23 | 清水建設株式会社 | 表示制御装置、表示システム、及び表示方法 |
JP2020112749A (ja) * | 2019-01-16 | 2020-07-27 | 清水建設株式会社 | 表示制御装置、表示システム、及び表示方法 |
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US20150102998A1 (en) | 2015-04-16 |
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