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公开(公告)号：US20120287287A1
公开(公告)日：2012-11-15
申请号：US13105226
申请日：2011-05-11
IPC分类号： H04N17/00
CPC分类号： H04N17/002 , G06T7/80 , G06T2207/30204
摘要： A system for determining one or more camera calibration parameters is disclosed. The system comprises a processor and a memory. The processor is configured to: a) provide a first pattern for display on a display screen; b) receive a first image from a camera viewing the display screen; c) provide a second pattern for display on the display screen; and d) receive a second image from the camera viewing the display screen. The relative position of the display screen and the camera are the same as when the first image was captured using the camera. The processor is further configured to determine an image location which is a projection of a known physical location on the display screen by using at least in part a first feature identified in the first image and a second feature identified in the second image and determine one or more calibration parameters based at least in part on the determined image location. The memory is coupled to the processor and configured to provide the processor with instructions.
摘要翻译： 公开了一种用于确定一个或多个相机校准参数的系统。 该系统包括处理器和存储器。 处理器被配置为：a）提供用于在显示屏幕上显示的第一图案; b）从观看显示屏的相机接收第一图像; c）提供用于在显示屏上显示的第二图案; 以及d）从观看显示屏的相机接收第二张图像。 显示屏和相机的相对位置与使用相机拍摄第一张图像时的相对位置相同。 处理器还被配置为通过至少部分地使用在第一图像中标识的第一特征和在第二图像中标识的第二特征来确定作为已知物理位置在投影屏幕上的图像位置，并且确定一个或 至少部分地基于所确定的图像位置的更多的校准参数。 存储器耦合到处理器并且被配置为向处理器提供指令。
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公开(公告)号：US08872897B2
公开(公告)日：2014-10-28
申请号：US13105218
申请日：2011-05-11
CPC分类号： G06T7/0018 , G06T7/80 , G06T2207/10004 , G06T2207/10016 , G06T2207/30204 , G06T2207/30208 , G06T2207/30244
摘要： A system for computing one or more calibration parameters of a camera is disclosed. The system includes a processor and a memory. The processor is configured to provide a first object either marked with or displaying three or more fiducial points. The fiducial points have known 3D positions in a first object reference frame. The processor is further configured to provide a second object either marked with or displaying three or more fiducial points. The fiducial points had known 3D positions in a second object reference frame. The processor is further configured to place the first object and the second object in a fixed position such that the fiducial point positions of the first and second objects are non-planar. The processor is further configured to compute one or more calibration parameters of the second camera using computations based on images taken of the fiducials.
摘要翻译： 公开了一种用于计算照相机的一个或多个校准参数的系统。 该系统包括处理器和存储器。 处理器被配置为提供标记有或显示三个或更多个基准点的第一对象。 基准点已知第一个对象参考系中的3D位置。 处理器还被配置为提供标记有或显示三个或更多个基准点的第二对象。 基准点在第二个对象参考系中已知3D位置。 处理器还被配置成将第一物体和第二物体放置在固定位置，使得第一和第二物体的基准点位置是非平面的。 处理器还被配置为基于基于取自基准的图像的计算来计算第二相机的一个或多个校准参数。
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公开(公告)号：US08743214B2
公开(公告)日：2014-06-03
申请号：US13105226
申请日：2011-05-11
CPC分类号： H04N17/002 , G06T7/80 , G06T2207/30204
摘要： A system for determining one or more camera calibration parameters is disclosed. The system comprises a processor and a memory. The processor is configured to: a) provide a first pattern for display on a display screen; b) receive a first image from a camera viewing the display screen; c) provide a second pattern for display on the display screen; and d) receive a second image from the camera viewing the display screen. The relative position of the display screen and the camera are the same as when the first image was captured using the camera. The processor is further configured to determine an image location which is a projection of a known physical location on the display screen by using at least in part a first feature identified in the first image and a second feature identified in the second image and determine one or more calibration parameters based at least in part on the determined image location. The memory is coupled to the processor and configured to provide the processor with instructions.
摘要翻译： 公开了一种用于确定一个或多个相机校准参数的系统。 该系统包括处理器和存储器。 处理器被配置为：a）提供用于在显示屏幕上显示的第一图案; b）从观看显示屏的相机接收第一图像; c）提供用于在显示屏上显示的第二图案; 以及d）从观看显示屏的相机接收第二张图像。 显示屏和相机的相对位置与使用相机拍摄第一张图像时的相对位置相同。 处理器还被配置为通过至少部分地使用在第一图像中标识的第一特征和在第二图像中标识的第二特征来确定作为已知物理位置在投影屏幕上的图像位置，并且确定一个或 至少部分地基于所确定的图像位置的更多的校准参数。 存储器耦合到处理器并且被配置为向处理器提供指令。
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公开(公告)号：US20120287240A1
公开(公告)日：2012-11-15
申请号：US13105218
申请日：2011-05-11
IPC分类号： H04N13/02
CPC分类号： G06T7/0018 , G06T7/80 , G06T2207/10004 , G06T2207/10016 , G06T2207/30204 , G06T2207/30208 , G06T2207/30244
摘要： A system for computing one or more calibration parameters of a camera is disclosed. The system comprises a processor and a memory. The processor is configured to provide a first object either marked with or displaying three or more fiducial points. The fiducial points have known 3D positions in a first object reference frame. The processor is further configured to provide a second object either marked with or displaying three or more fiducial points. The fiducial points had known 3D positions in a second object reference frame. The processor is further configured to place the first object and the second object in a fixed position such that the fiducial point positions of the first and second objects are non-planar. The processor is further configured to compute one or more calibration parameters of the second camera using computations based on images taken of the fiducials.
摘要翻译： 公开了一种用于计算照相机的一个或多个校准参数的系统。 该系统包括处理器和存储器。 处理器被配置为提供标记有或显示三个或更多个基准点的第一对象。 基准点已知第一个对象参考系中的3D位置。 处理器还被配置为提供标记有或显示三个或更多个基准点的第二对象。 基准点在第二个对象参考系中已知3D位置。 处理器还被配置为将第一物体和第二物体放置在固定位置，使得第一和第二物体的基准点位置是非平面的。 处理器还被配置为基于基于取自基准的图像的计算来计算第二相机的一个或多个校准参数。
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