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公开(公告)号：EP2849149B1
公开(公告)日：2018-12-12
申请号：EP14184479.5
申请日：2014-09-11
申请人： Ricoh Company, Ltd.
IPC分类号： G06T3/00
CPC分类号： H04N5/74 , G03B21/147 , G06T3/005 , H04N9/3185 , H04N17/004
摘要： A projection system for projecting an image onto a projection body by a plurality of projection devices, includes an image preparation unit configured to prepare a plurality of imaging images for calibration, a grid point extraction unit configured to extract a set of grid points that indicates a distortion of a projection image for at least one projection device from each of the plurality of imaging images for calibration, a grid point transformation unit configured to execute a transformation between a plurality of images that are imaged in different imaging ranges on the plurality of imaging images for calibration in such a manner that each set of the grid points that are commonly extracted for a subject projection device is provided in a common coordinate system, a grid point synthesis unit configured to produce a set of the grid points that are synthesized for a subject projection device based on a plurality of sets of the grid points in the common coordinate system, and a correction coefficient calculation unit configured to calculate a correction coefficient for a subject projection device based on a set of the synthesized grid points.
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公开(公告)号：EP3404648A1
公开(公告)日：2018-11-21
申请号：EP16885102.0
申请日：2016-12-19
申请人： Ricoh Company, Ltd.
CPC分类号： H04N9/3147 , G03B21/00 , G03B21/14 , G03B21/60 , G09G5/00 , H04N5/74 , H04N9/3185 , H04N9/3188 , H04N9/3194
摘要： A projection system (100) for projecting an image onto a projection body having a curve in one direction by projection units (150) includes a grid point extraction unit (132) to extract a set of grid points indicating distortion of a projected image from captured calibration images; a grid point converting unit (134) to convert each set of grid points of a target projection unit (150) commonly extracted from captured calibration images having a calibration pattern projected on the projection body in different imaging ranges in association with the one direction onto a common coordinate system; a grid point combining unit (136) to combine the converted sets of grid points on the common coordinate system in accordance with position; and a correction coefficient calculating unit (140) to calculate a correction coefficient based on the combined sets of grid points.
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公开(公告)号：EP3141951B1
公开(公告)日：2018-10-17
申请号：EP15777211.2
申请日：2015-02-16
申请人： Sony Corporation
发明人： TERASAKI, Kazuya
IPC分类号： G03B21/16 , F21S2/00 , G03B21/14 , G03B21/20 , H04N5/74 , F21V29/51 , F21V29/74 , F21Y115/30 , F21V29/67 , F28D15/02
CPC分类号： G03B21/16 , F21S2/00 , F21V29/51 , F21V29/673 , F21V29/74 , F21Y2115/30 , F28D15/0275 , G03B21/204 , H04N5/74
摘要： A light source apparatus according to an embodiment of the present technology includes a light source section and a heat dissipation section. The light source section includes a plurality of light source units. The heat dissipation section includes one or more fins commonly thermally connected to the plurality of light source units, a first mounting portion on which a suction mechanism that sucks heated air through the one or more fins is mounted, and a second mounting portion on an opposite side of the first mounting portion, on which the light source section is mounted, the second mounting portion including a first intake port serving as an intake port for cooling air guided to the one or more fins.
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公开(公告)号：EP3128289B1
公开(公告)日：2018-09-26
申请号：EP16182483.4
申请日：2016-08-03
CPC分类号： G06T15/10 , G01B11/25 , G01B11/2504 , G06T7/521 , G06T7/593 , G06T7/85 , G06T19/006 , H04N5/74 , H04N13/204
摘要： A system and method for automatic alignment and projection mapping are provided. A projector and at least two cameras are mounted with fields of view that overlap a projection area on a three-dimensional environment. A computing device: controls the projector to project structured light patterns that uniquely illuminate portions of the environment; acquires images of the patterns from the cameras; generates a two-dimensional mapping of the portions between projector and camera space and by processing the images and correlated patterns; generates a cloud of points representing the environment using the mapping and camera positions; determines a projector location, orientation and lens characteristics from the cloud; positions a virtual camera relative to a virtual three-dimensional environment, corresponding to the environment, parameters of the virtual camera respectively matching parameters of the projector; and, controls the projector to project based on a virtual location, orientation and characteristics of the virtual camera.
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公开(公告)号：EP3349441A3
公开(公告)日：2018-09-12
申请号：EP17207288.6
申请日：2017-12-14
发明人： KIMURA, Yuji , TANAKA, Toyoki
IPC分类号： H04N9/31
CPC分类号： G02B26/101 , G09G3/025 , G09G3/346 , H04N1/036 , H04N1/113 , H04N5/74 , H04N9/3135 , H04N9/3185 , H04N9/3194
摘要： An image projection apparatus includes a light emission unit for emitting laser light; a light scanning unit for projecting an image on a drawing area by reflecting the light and scanning the reflected light; a light detection unit arranged outside of the drawing area; a detection unit for detecting, according to a deviation from a desired value of a first pixel detected by the light detection unit when the light is horizontally scanned in a first direction and a deviation from a desired value of a second pixel detected by the light detection unit when the light is horizontally scanned in a second direction, each of a phase deviation of the laser light in a horizontal scanning direction and a swing angle fluctuation of the light scanning unit; and a compensation unit configured to compensate for each of the phase deviation and the swing angle fluctuation.
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6.发明公开
公开(公告)号：EP3360321A1
公开(公告)日：2018-08-15
申请号：EP16853243.0
申请日：2016-09-28
申请人： Ricoh Company, Ltd.
发明人： NOSE, Masaki
IPC分类号： H04N9/31 , G03B21/00 , G09G5/00 , G09G5/02 , G09G5/10 , G09G5/36 , H04N5/74 , G09G3/00 , G09G3/20 , G09G5/06
CPC分类号： G09G3/2003 , G09G3/001 , G09G3/002 , G09G5/02 , G09G5/06 , G09G5/10 , G09G2320/0233 , G09G2320/0238 , G09G2320/0242 , G09G2320/0271 , G09G2320/0276 , G09G2320/066 , G09G2340/06 , G09G2340/14 , G09G2360/16 , H04N5/74 , H04N9/31 , H04N9/3182
摘要： A projection apparatus includes an inputting unit configured to input image data that expresses an image to be projected; a converting unit configured to convert pixel values of the image data into first parameters that indicate lightness and second parameters that indicate information concerning color; a determining unit configured to determine whether to invert the first parameters; an inverting unit configured to invert the first parameters to calculate third parameters if the determining unit has determined to invert the first parameters; a generating unit configured to generate inverted data based on the second parameters and the third parameters; and a projecting unit configured to project the image based on the inverted data.
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公开(公告)号：EP3110138B1
公开(公告)日：2018-07-25
申请号：EP15745354.9
申请日：2015-01-07
发明人： FUCHIKAMI, Ryuji , OHASHI, Masahiro
IPC分类号： H04N5/74 , G01B11/25 , G06T3/00 , H04N5/225 , H04N5/232 , G06T15/08 , G06T15/20 , H04N5/262 , H04N9/31 , G06T17/00 , G06T5/00
CPC分类号： H04N9/3185 , G06T5/006 , G06T15/08 , G06T15/20 , G06T17/00 , G06T2207/10016 , G06T2207/10024 , G06T2207/10028 , G06T2207/30244 , H04N5/225 , H04N5/232 , H04N5/23229 , H04N5/2628 , H04N5/74 , H04N9/3182 , H04N9/3194
摘要： A projection system (100) includes a projection apparatus (102) that projects, onto an object, pattern light indicating pattern images obtained by conversion of projection coordinates defined in a projection coordinate system to codes, an imaging apparatus (101) that captures images created on the object by projecting the pattern light onto the object and that generates first captured images, and an image correction apparatus (104) that generates, based on the first captured images, first coordinate conversion information which associates the projection coordinates with imaging pixel coordinates defined in an imaging coordinate system of the imaging apparatus and that corrects a projection image, which is prepared in advance, by using the first coordinate conversion information.
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8.发明公开
公开(公告)号：EP3306919A4
公开(公告)日：2018-07-18
申请号：EP15897527
申请日：2015-08-27
申请人： ZTE CORP
发明人： WANG YUCHEN , ZHANG JUNYAN
IPC分类号： H04N9/31
CPC分类号： H04N9/3185 , H04N5/74 , H04N9/31 , H04N9/3152 , H04N9/3194
摘要： Embodiments of the present invention disclose a keystone correction method for a projection terminal including: when an included angle between a projection centerline of the projection terminal and a horizontal plane is greater than a set acute angle, determining a direction of a projection plane according to a size relationship between a distance of the projection terminal to the projection plane along a first projection line and a distance of the projection terminal to the projection plane along a second projection line, the first projection line and the second projection line having different projection angles; and performing a keystone correction for the projection terminal according to the direction of the projection plane. Embodiments of the present invention further disclose a keystone correction device for a projection terminal, a projection terminal and a computer storage medium.
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公开(公告)号：EP3346699A1
公开(公告)日：2018-07-11
申请号：EP16841129.6
申请日：2016-08-31
申请人： NEC Platforms, Ltd.
发明人： TAMAI, Junichi
摘要： To display an image even on a projection surface having complex unevenness similarly to a flat, a projection device includes: a storage unit storing at least a pattern image for detecting distortion depending on a state of the surface, an expected image associated with a displayed image of the pattern image displayed on a flat, and a desired projection image; a projection unit projecting an image including the pattern image and the desired projection image; an image acquisition unit acquiring a displayed image of the pattern image, and extracting a distortion image; a distortion amount calculating unit calculating a distortion parameter for distortion by comparing the expected image with the distortion image; a distortion correction processing unit correcting the projected desired projection image by using the distortion parameter; and an image output unit outputting, to the projection unit, image data including the corrected desired projection image and the pattern image.
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公开(公告)号：EP3309611A1
公开(公告)日：2018-04-18
申请号：EP16811390.0
申请日：2016-05-24
发明人： YAMAKI Kousuke , MATSUO Akira , NISHIMURA Suzushi
摘要： [Problem] Provided is a transparent screen which satisfies both the visibility of the projection light and the transmission light by anisotropically scattering and reflecting the projection light emitted from a light source.
[Solving means] A transparent screen according to the present invention comprises a light diffusion layer including a binder and microparticles,
said transparent screen having a scattered light brilliance profile characterized to meet the following conditions A to C:
A: the emitted light relative brilliance in the 0° direction is from 50 to 95, when the entered light relative brilliance is 100;
B: the emitted light relative brilliance in the ± 5° direction is 1.1 or less, when the emitted light relative brilliance in the 0° direction is 100; and
C: the emitted light relative brilliance in the ± 50° direction is 0.0005 or higher, when the emitted light relative brilliance in the 0° direction is 100;
when the brilliance is Y from the XYZ color system measured with a goniophotometer.摘要翻译： 本发明提供一种透明屏幕，其通过各向异性散射和反射从光源发射的投影光来满足投影光和透射光的可见性。 [解决方案]根据本发明的透明屏幕包括包含粘合剂和微粒的光漫射层，所述透明屏幕具有散射光辉度分布，其特征在于满足以下条件A至C：A：发射光的相对亮度 当进入的光线相对亮度为100时，0°方向为50至95; B：当0°方向上的发光相对亮度为100时，±5°方向上的发射光相对亮度为1.1或更小; C：在0°方向上发光相对亮度为100时，±50°方向上的发射光相对亮度为0.0005或更高; 当用测角光度计测量的XYZ颜色系统的亮度为Y时。
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