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11. 发明授权

US08944612B2 Multi-projector system and method 有权
标题翻译：多投影机系统及方法
公开(公告)号：US08944612B2
公开(公告)日：2015-02-03
申请号：US13148345
申请日：2009-02-11
申请人： Nelson Liang An Chang , Niranjan Damera-Venkata , Arun Kumar Paruchuri
发明人： Nelson Liang An Chang , Niranjan Damera-Venkata , Arun Kumar Paruchuri
IPC分类号： G03B21/26 , G03B21/14 , G03B21/13 , H04N9/31 , H04N13/04
CPC分类号： G03B21/14 , G03B21/13 , G03B21/26 , G03B37/04 , H04N9/3147 , H04N9/3182 , H04N9/3194 , H04N13/327 , H04N13/363
摘要： A method for automatic delivery of consistent imagery in a multi-projector system includes the steps of dividing the projectors into a plurality of sub-groups of projectors, each projector oriented to project a sub-frame to a sub-group display location, and adjusting the output of each projector in each sub-group to provide selected target display characteristics across all sub-groups.
摘要翻译：一种用于在多投影仪系统中自动传送一致图像的方法包括以下步骤：将投影仪分成投影仪的多个子组，每个投影仪将子帧投影到子组显示位置，并调整每个子组中的每个投影仪的输出，以在所有子组中提供所选择的目标显示特征。

12. 发明申请

US20120262544A1 METHOD FOR COMPENSATING FOR CROSS-TALK IN 3-D DISPLAY 有权
标题翻译： 3-D显示器中交叉口的补偿方法
公开(公告)号：US20120262544A1
公开(公告)日：2012-10-18
申请号：US13384944
申请日：2009-12-08
申请人： Niranjan Damera-Venkata , Nelson Liang An Chang
发明人： Niranjan Damera-Venkata , Nelson Liang An Chang
IPC分类号： H04N13/02
CPC分类号： H04N13/337 , G03B35/26 , H04N13/327
摘要： A method for compensating for cross-talk in a 3-D projector-camera system having a controller including a processor and system memory and at least two channels, includes the steps of calibrating the projector-camera system, computing cross-talk factors applicable to the projector-camera system, and correcting new image data for cross-talk based upon the computed cross-talk factors. The system is calibrated by sequentially projecting and capturing, with a camera, a calibration image for each channel, to capture cross-talk between the channels. The controller can compute the cross-talk factors based upon the captured calibration images.
摘要翻译：一种用于补偿具有包括处理器和系统存储器以及至少两个通道的控制器的3-D投影仪相机系统中的串扰的方法，包括校准投影仪 - 照相机系统的步骤，计算适用于基于所计算的串扰因子校正用于串扰的新图像数据。通过用摄像机依次投影和捕获每个通道的校准图像来校准系统，以捕获通道之间的串扰。控制器可以基于捕获的校准图像来计算串扰因子。

13. 发明申请

US20120093408A1 ORDINAL AND SPATIAL LOCAL FEATURE VECTOR BASED IMAGE REPRESENTATION 失效
标题翻译：基于局部和空间局部特征向量的图像表示
公开(公告)号：US20120093408A1
公开(公告)日：2012-04-19
申请号：US12906831
申请日：2010-10-18
申请人： Feng Tang , Suk Hwan Lim , Nelson Liang An Chang
发明人： Feng Tang , Suk Hwan Lim , Nelson Liang An Chang
IPC分类号： G06K9/34
CPC分类号： G06K9/4642
摘要： A local image patch identified in an image is divided into respective sub-patches of respective image forming elements. For each of the respective image forming elements in the local image patch, a respective ordinal rank of the image forming element is determined, and respective contributions of the image forming element to a particular one of the respective sub-patches containing the image forming element and to one or more other ones of the respective sub-patches neighboring the particular sub-patch are ascertained. Each ordinal rank corresponds to a respective dimension of an ordinal rank feature space. For each of the respective sub-patches of the local image patch, a respective histogram of ascertained contributions of the image forming elements in the ordinal rank feature space is built. A respective feature vector representing the local image patch is generated from the respective histograms built for the sub-patches of the local image.
摘要翻译：在图像中识别的局部图像块被分成各个图像形成元件的各个子块。对于局部图像贴片中的各个图像形成元件中的每一个，确定图像形成元件的相应序数等级，并且确定图像形成元件对包含图像形成元件的各个子贴片中的特定一个的各自贡献，以及确定与特定子贴片相邻的相应子贴片中的一个或多个其他贴片。每个序数等级对应于序数秩特征空间的相应维度。对于局部图像贴片的各个子贴片中的每一个，构建了排序特征空间中图像形成元素的确定贡献的相应直方图。从针对本地图像的子片段构建的各个直方图生成表示本地图像片段的相应特征矢量。

14. 发明授权

US07742011B2 Image display system 失效
标题翻译：图像显示系统
公开(公告)号：US07742011B2
公开(公告)日：2010-06-22
申请号：US11590173
申请日：2006-10-31
申请人： Niranjan Damera-Venkata , Nelson Liang An Chang
发明人： Niranjan Damera-Venkata , Nelson Liang An Chang
IPC分类号： G09G5/00
CPC分类号： H04N9/3188 , G09G3/002 , G09G3/007 , G09G2300/026 , G09G2320/0233 , G09G2320/0626 , G09G2320/0666 , G09G2320/0693 , G09G2340/0407 , G09G2340/12 , G09G2360/145 , G09G2360/18 , H04N9/3102 , H04N9/3147
摘要： A projection system for displaying an arbitrary combination of superimposed and tiled images using a plurality of projectors. A sub-frame generator generates a plurality of sub-frames corresponding to an image frame for simultaneous display by the projectors in at least partially overlapping positions on a display surface. The sub-frames are generated using optimal sub-pixel blending maps that are derived by forming a simulated image to approximate a target image subject to at least one smoothing constraint between the simulated image and the target image. The target image is formed from the image frame using at least one property (e.g., luminance or color) of each of the plurality of projectors.
摘要翻译：一种用于使用多个投影仪显示叠加和平铺图像的任意组合的投影系统。子帧生成器生成与图像帧相对应的多个子帧，用于在显示表面上至少部分重叠的位置上由投影仪同时显示。使用通过形成模拟图像导出的最佳子像素混合图来逼近子帧，以逼近受模拟图像和目标图像之间的至少一个平滑约束的目标图像。使用多个投影仪中的每一个的至少一个属性（例如，亮度或颜色），从图像帧形成目标图像。

15. 发明授权

US07470032B2 Projection of overlapping and temporally offset sub-frames onto a surface 有权
标题翻译：将重叠和时间偏移子帧投影到表面上
公开(公告)号：US07470032B2
公开(公告)日：2008-12-30
申请号：US11260737
申请日：2005-10-27
申请人： Niranjan Damera-Venkata , Nelson Liang An Chang , Simon Widdowson
发明人： Niranjan Damera-Venkata , Nelson Liang An Chang , Simon Widdowson
IPC分类号： G03B21/14
CPC分类号： H04N9/3147
摘要： A method of displaying images with a display system includes receiving image data for the images. The method includes generating at least a first sub-frame and at least a second sub-frame corresponding to the image data. The first sub-frame is projected with a first projector onto a target surface. The second sub-frame is projected with a second projector onto the target surface at a temporal offset from the projection of the first sub-frame, wherein the first and second projectors are positioned to project sub-frames that spatially overlap on the target surface.
摘要翻译：用显示系统显示图像的方法包括接收图像的图像数据。该方法包括生成至少第一子帧和至少第二子帧对应于图像数据。第一子框架用第一投影仪投射到目标表面上。第二子框架与第二投影仪投射到目标表面上，与第一子框架的投影物质的时间偏移，其中第一和第二投影仪被定位成投影在目标表面上空间重叠的子框架。

16. 发明授权

US07443364B2 Projection of overlapping sub-frames onto a surface 有权
标题翻译：将重叠子帧投影到表面上
公开(公告)号：US07443364B2
公开(公告)日：2008-10-28
申请号：US11080583
申请日：2005-03-15
申请人： Niranjan Damera-Venkata , Nelson Liang An Chang , William J. Allen
发明人： Niranjan Damera-Venkata , Nelson Liang An Chang , William J. Allen
IPC分类号： G09G3/00
CPC分类号： G09G5/391 , G09G3/007 , G09G2340/0407
摘要： A method of displaying an image with a display system includes receiving image data for the image. The method includes generating a first sub-frame and a second sub-frame corresponding to the image data based on a geometric relationship between a hypothetical reference projector and each of a first and a second projector. The method includes projecting the first sub-frame with the first projector onto a target surface. The method includes projecting the second sub-frame with the second projector onto the target surface, wherein the first and the second sub-frames at least partially overlap on the target surface.
摘要翻译：用显示系统显示图像的方法包括接收图像的图像数据。该方法包括基于假想参考投影仪与第一和第二投影仪中的每一个之间的几何关系来生成与图像数据相对应的第一子帧和第二子帧。该方法包括将第一子框架与第一投影仪投影到目标表面上。该方法包括将第二子帧与第二投影仪投影到目标表面上，其中第一和第二子帧在目标表面上至少部分重叠。

17. 发明申请

US20080024469A1 Generating sub-frames for projection based on map values generated from at least one training image 审中-公开
标题翻译：基于从至少一个训练图像生成的地图值生成用于投影的子帧
公开(公告)号：US20080024469A1
公开(公告)日：2008-01-31
申请号：US11496358
申请日：2006-07-31
申请人： Niranjan Damera-Venkata , Huitao Luo , Nelson Liang An Chang
发明人： Niranjan Damera-Venkata , Huitao Luo , Nelson Liang An Chang
IPC分类号： G09G5/00 , H04N9/31
CPC分类号： H04N9/3194 , H04N9/3147
摘要： A method of displaying an image with a display system includes generating a plurality of map values based on at least one training image. A first image frame is received. A plurality of sub-frames corresponding to the first image frame are generated based on a geometric relationship between a reference coordinate system and a plurality of projectors, and based on the plurality of map values. The plurality of sub-frames are projected onto a target surface with the plurality of projectors, thereby producing a resulting image on the target surface.
摘要翻译：使用显示系统显示图像的方法包括基于至少一个训练图像生成多个地图值。接收到第一个图像帧。基于参考坐标系和多个投影仪之间的几何关系，并且基于多个映射值，生成与第一图像帧对应的多个子帧。多个子框架与多个投影仪投影到目标表面上，从而在目标表面上产生所得到的图像。

18. 发明申请

US20080002160A1 System and method for generating and displaying sub-frames with a multi-projector system 审中-公开
标题翻译：用多投影机系统生成和显示子帧的系统和方法
公开(公告)号：US20080002160A1
公开(公告)日：2008-01-03
申请号：US11480139
申请日：2006-06-30
申请人： Nelson Liang An Chang , Niranjan Damera-Venkata , Simon Widdowson
发明人： Nelson Liang An Chang , Niranjan Damera-Venkata , Simon Widdowson
IPC分类号： G03B21/26
CPC分类号： G06T5/006 , G09G3/002 , G09G2320/0693 , G09G2320/08 , G09G2340/0407 , G09G2360/18
摘要： A method of generating sub-frames for display by a multi-projector display system includes performing a geometric mapping of image boundaries of images projected by each of a plurality of projectors to a reference coordinate system. A global boundary is identified in the reference coordinate system that encompasses all of the image boundaries. A total display area of the multi-projector system is defined. A cropped display area is identified in the reference coordinate system that lies within the total display area. Sub-frames are generated for projection by the plurality of projectors based on the cropped display area.
摘要翻译：生成用于由多投影仪显示系统显示的子帧的方法包括执行由多个投影仪中的每一个投影的图像的图像边界到参考坐标系的几何映射。在包含所有图像边界的参考坐标系中识别出全局边界。定义了多投影机系统的总显示区域。在参考坐标系中识别出位于总显示区域内的裁剪的显示区域。基于裁剪的显示区域，生成用于由多个投影仪投影的子帧。

19. 发明授权

US07306341B2 Multi-projector geometric calibration 失效
标题翻译：多投影机几何校准
公开(公告)号：US07306341B2
公开(公告)日：2007-12-11
申请号：US11068195
申请日：2005-02-28
申请人： Nelson Liang An Chang
发明人： Nelson Liang An Chang
IPC分类号： G03B21/26 , G03B21/00 , G01B11/24 , G01B11/30 , G01B9/08
CPC分类号： G03B21/14 , G03B37/04 , H04N9/3147 , H04N9/3185
摘要： In one aspect, a first sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a first projection plane is projected onto a scene. A second sequence of patterns of light symbols that spatio-temporally encode two-dimensional position information in a second projection plane is projected onto the scene. Light patterns corresponding to the first and second sequences of patterns of light symbols reflected from the scene are captured at a capture plane. Captured light symbol sequence codes are determined from the captured light patterns. A correspondence mapping of the first projector plane and the second projector plane with respect to a reference coordinate system is generated based at least in part on correspondence between the captured light symbol sequence codes and the first and second sequences of light symbol patterns.
摘要翻译：在一个方面，在第一投影平面中时空编码二维位置信息的光符号图案的第一序列被投影到场景上。在第二投影平面中时空编码二维位置信息的光符号图案的第二序列被投影到场景上。在捕捉平面处捕获与从场景反射的光符号的第一和第二图案序列对应的光图案。捕获的光符号序列码由捕获的光图案确定。至少部分地基于捕获的光符号序列码与第一和第二序列的光符号图案之间的对应关系，生成第一投影仪平面和第二投影仪平面相对于参考坐标系的对应映射。

20. 发明授权

US08687068B2 Pattern of color codes 有权
标题翻译：颜色代码图案
公开(公告)号：US08687068B2
公开(公告)日：2014-04-01
申请号：US12885528
申请日：2010-09-19
申请人： Nelson Liang An Chang , Suk Hwan Lim
发明人： Nelson Liang An Chang , Suk Hwan Lim
IPC分类号： H04N17/00 , H04N17/02
CPC分类号： H04N17/002 , H04N5/3572 , H04N17/02
摘要： A pattern includes a spatial configuration of color codes. Each color code is a unique configuration of colors selected from a number of basis colors. The color codes each include the same number of colors.
摘要翻译：模式包括颜色代码的空间配置。每个颜色代码是从多种基本颜色中选择的颜色的独特配置。颜色代码各自包含相同数量的颜色。

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