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1. 发明授权

US09846960B2 Automated camera array calibration 有权
公开(公告)号：US09846960B2
公开(公告)日：2017-12-19
申请号：US13566877
申请日：2012-08-03
申请人： Adam G. Kirk , Yaron Eshet , David Eraker
发明人： Adam G. Kirk , Yaron Eshet , David Eraker
IPC分类号： G06T15/04 , G06T17/00 , H04N7/14 , H04N13/02 , G06T15/08 , G06T15/20 , H04N7/15 , H04N13/00
CPC分类号： G06T15/04 , G06T15/08 , G06T15/205 , G06T17/00 , G06T2210/56 , H04N7/142 , H04N7/15 , H04N7/157 , H04N13/117 , H04N13/194 , H04N13/239 , H04N13/243 , H04N13/246 , H04N13/257 , H04R2227/005 , H04S2400/15
摘要： The automated camera array calibration technique described herein pertains to a technique for automating camera array calibration. The technique can leverage corresponding depth and single or multi-spectral intensity data (e.g., RGB (Red Green Blue) data) captured by hybrid capture devices to automatically determine camera geometry. In one embodiment it does this by finding common features in the depth maps between two hybrid capture devices and derives a rough extrinsic calibration based on shared depth map features. It then uses the intensity (e.g., RGB) data corresponding to the depth maps and uses the features of the intensity (e.g., RGB) data to refine the rough extrinsic calibration.

2. 发明授权

US09251623B2 Glancing angle exclusion 有权
标题翻译：扫视角度排除
公开(公告)号：US09251623B2
公开(公告)日：2016-02-02
申请号：US13599436
申请日：2012-08-30
申请人： Adam G. Kirk
发明人： Adam G. Kirk
IPC分类号： G06T17/00 , G06T15/04
CPC分类号： G06T15/04 , G06T15/08 , G06T15/205 , G06T17/00 , G06T2210/56 , H04N7/142 , H04N7/15 , H04N7/157 , H04N13/117 , H04N13/194 , H04N13/239 , H04N13/243 , H04N13/246 , H04N13/257 , H04R2227/005 , H04S2400/15
摘要： The glancing angle exclusion technique described herein selectively limits projective texturing near depth map discontinuities. A depth discontinuity is defined by a jump between a near-depth surface and a far-depth surface. The claimed technique can limit projective texturing on near and far surfaces to a different degree—for example, the technique can limit far-depth projective texturing within a certain distance to a depth discontinuity but not near-depth projective texturing.
摘要翻译：本文描述的扫掠角度排除技术有选择地限制深度图不连续点附近的投影纹理。深度不连续性由近深表面和深深表面之间的跳跃限定。所要求的技术可以在不同程度上限制近表面和远表面上的投影纹理 - 例如，该技术可以将远程深度的投影纹理限制在一定距离内的深度不连续性，而不是深度投影纹理。

3. 发明申请

US20130100256A1 GENERATING A DEPTH MAP 有权
标题翻译：生成深度图
公开(公告)号：US20130100256A1
公开(公告)日：2013-04-25
申请号：US13278184
申请日：2011-10-21
申请人： Adam G. Kirk , Yaron Eshet , Kestutis Patiejunas , Sing Bing Kang , Charles Lawrence Zitnick, III , David Eraker , Simon Winder
发明人： Adam G. Kirk , Yaron Eshet , Kestutis Patiejunas , Sing Bing Kang , Charles Lawrence Zitnick, III , David Eraker , Simon Winder
IPC分类号： H04N13/02
CPC分类号： G06T7/0057 , G06T7/521 , G06T7/593 , G06T2207/10048
摘要： Methods and systems for generating a depth map are provided. The method includes projecting an infrared (IR) dot pattern onto a scene. The method also includes capturing stereo images from each of two or more synchronized IR cameras, detecting a number of dots within the stereo images, computing a number of feature descriptors for the dots in the stereo images, and computing a disparity map between the stereo images. The method further includes generating a depth map for the scene using the disparity map.
摘要翻译：提供了生成深度图的方法和系统。该方法包括将红外（IR）点图案投影到场景上。该方法还包括从两个或多个同步红外相机中的每一个捕获立体图像，检测立体图像内的多个点，计算立体图像中的点的特征描述符的数量，以及计算立体图像之间的视差图。该方法还包括使用视差图生成场景的深度图。

4. 发明授权

US08400447B1 Space partitioning trees using planes selected from a discrete set of orientations 有权
标题翻译：使用从离散的一组取向中选择的平面对空间进行分区
公开(公告)号：US08400447B1
公开(公告)日：2013-03-19
申请号：US12032335
申请日：2008-02-15
申请人： Nathan A. Carr , Gavin S. P. Miller , Adam G. Kirk
发明人： Nathan A. Carr , Gavin S. P. Miller , Adam G. Kirk
IPC分类号： G06T15/00
CPC分类号： G06T17/005 , G06T15/06
摘要： A method, system, and computer-readable storage medium are disclosed for partitioning a scene with discrete oriented planes. In one embodiment, a scene comprising a plurality of objects may be partitioned into a plurality of sub-regions. The sub-regions may be divided by a plurality of planes having orientations selected from a discrete set of orientations comprising at least one orientation that is not the x axis, y axis, or z axis and is at a nonzero angle with respect to the x, y, or z axes. The partitioned scene may be stored in a binary tree comprising a plurality of nodes. Each node may correspond to a sub-region. In one embodiment, a ray tracing query may be solved for a particular ray. In solving the ray tracing query, the tree may be traversed to identify a first object of the plurality of objects intersected by the ray.
摘要翻译：公开了一种用离散定向平面分割场景的方法，系统和计算机可读存储介质。在一个实施例中，包括多个对象的场景可以被划分成多个子区域。子区域可以被多个平面划分，所述多个平面具有从包括不是x轴，y轴或z轴的至少一个取向的离散取向集合中选择的方向，并且相对于x轴处于非零角度，y或z轴。分割场景可以存储在包括多个节点的二叉树中。每个节点可以对应于子区域。在一个实施例中，可以针对特定射线求解光线跟踪查询。在解决光线跟踪查询时，可以遍历树以识别由射线相交的多个对象中的第一对象。

5. 发明申请

US20130095920A1 GENERATING FREE VIEWPOINT VIDEO USING STEREO IMAGING 审中-公开
标题翻译：使用立体成像生成免费观看视频
公开(公告)号：US20130095920A1
公开(公告)日：2013-04-18
申请号：US13273213
申请日：2011-10-13
申请人： Kestutis Patiejunas , Kanchan Mitra , Patrick Sweeney , Yaron Eshet , Adam G. Kirk , Sing Bing Kang , Charles Lawrence Zitnick, III , David Eraker , David Harnett , Amit Mital , Simon Winder
发明人： Kestutis Patiejunas , Kanchan Mitra , Patrick Sweeney , Yaron Eshet , Adam G. Kirk , Sing Bing Kang , Charles Lawrence Zitnick, III , David Eraker , David Harnett , Amit Mital , Simon Winder
IPC分类号： A63F13/00 , H04N13/02
CPC分类号： G06T15/00 , G06T7/521 , G06T7/593 , G06T15/04 , G06T17/20 , G06T2207/10021 , G06T2207/10024 , G06T2207/10048 , G06T2207/20228 , H04N13/111 , H04N13/271 , H04N2013/0081
摘要： Methods and systems for generating free viewpoint video using an active infrared (IR) stereo module are provided. The method includes computing a depth map for a scene using an active IR stereo module. The depth map may be computed by projecting an IR dot pattern onto the scene, capturing stereo images from each of two or more synchronized IR cameras, detecting dots within the stereo images, computing feature descriptors corresponding to the dots in the stereo images, computing a disparity map between the stereo images, and generating the depth map using the disparity map. The method also includes generating a point cloud for the scene using the depth map, generating a mesh of the point cloud, and generating a projective texture map for the scene from the mesh of the point cloud. The method further includes generating the video for the scene using the projective texture map.
摘要翻译：提供了使用主动红外（IR）立体声模块产生免费视点视频的方法和系统。该方法包括使用主动IR立体声模块来计算场景的深度图。可以通过将IR点图案投影到场景上来计算深度图，从两个或更多个同步红外相机中的每一个拍摄立体图像，检测立体图像内的点，计算与立体图像中的点相对应的特征描述符，立体图像之间的视差图，并使用视差图生成深度图。该方法还包括使用深度图生成场景的点云，生成点云的网格，并从点云的网格生成场景的投影纹理贴图。该方法还包括使用投影纹理图生成场景的视频。

6. 发明授权

US09098908B2 Generating a depth map 有权
标题翻译：生成深度图
公开(公告)号：US09098908B2
公开(公告)日：2015-08-04
申请号：US13278184
申请日：2011-10-21
申请人： Adam G. Kirk , Yaron Eshet , Kestutis Patiejunas , Sing Bing Kang , Charles Lawrence Zitnick, III , David Eraker , Simon Winder
发明人： Adam G. Kirk , Yaron Eshet , Kestutis Patiejunas , Sing Bing Kang , Charles Lawrence Zitnick, III , David Eraker , Simon Winder
IPC分类号： G06T7/00
CPC分类号： G06T7/0057 , G06T7/521 , G06T7/593 , G06T2207/10048
摘要： Methods and systems for generating a depth map are provided. The method includes projecting an infrared (IR) dot pattern onto a scene. The method also includes capturing stereo images from each of two or more synchronized IR cameras, detecting a number of dots within the stereo images, computing a number of feature descriptors for the dots in the stereo images, and computing a disparity map between the stereo images. The method further includes generating a depth map for the scene using the disparity map.
摘要翻译：提供了用于生成深度图的方法和系统。该方法包括将红外（IR）点图案投影到场景上。该方法还包括从两个或多个同步红外相机中的每一个捕获立体图像，检测立体图像内的点数，计算立体图像中的点的特征描述符的数量，以及计算立体图像之间的视差图。该方法还包括使用视差图生成场景的深度图。

7. 发明申请

US20130321593A1 VIEW FRUSTUM CULLING FOR FREE VIEWPOINT VIDEO (FVV) 审中-公开
标题翻译：查看免费视频视频（FVV）
公开(公告)号：US20130321593A1
公开(公告)日：2013-12-05
申请号：US13598536
申请日：2012-08-29
申请人： Adam G. Kirk , Donald Marcus Gillett , Patrick Sweeney , Neil Fishman , David Eraker
发明人： Adam G. Kirk , Donald Marcus Gillett , Patrick Sweeney , Neil Fishman , David Eraker
IPC分类号： H04N13/04
CPC分类号： G06T15/04 , G06T15/08 , G06T15/205 , G06T17/00 , G06T2210/56 , H04N7/142 , H04N7/15 , H04N7/157 , H04N13/117 , H04N13/194 , H04N13/239 , H04N13/243 , H04N13/246 , H04N13/257 , H04R2227/005 , H04S2400/15
摘要： The view frustum culling technique described herein allows Free Viewpoint Video (FVV) or other 3D spatial video rendering at a client by sending only the 3D geometry and texture (e.g., RGB) data necessary for a specific viewpoint or view frustum from a server to the rendering client. The synthetic viewpoint is then rendered by the client by using the received geometry and texture data for the specific viewpoint or view frustum. In some embodiments of the view frustum culling technique, the client has both some texture data and 3D geometric data stored locally if there is sufficient local processing power. Additionally, in some embodiments, additional spatial and temporal data can be sent to the client to support changes in the view frustum by providing additional geometry and texture data that will likely be immediately used if the viewpoint is changed either spatially or temporally.
摘要翻译：本文描述的视锥形截尾技术允许仅通过将特定视点或视锥体所需的3D几何和纹理（例如，RGB）数据从服务器发送到客户端，从而在客户端处进行自由视点视频（FVV）或其他3D空间视频呈现渲染客户端。合成视点然后由客户端通过使用接收到的几何和纹理数据为特定视点或视图截面呈现。在视锥形截尾技术的一些实施例中，如果存在足够的局部处理能力，则客户端具有存储在本地的一些纹理数据和3D几何数据。另外，在一些实施例中，可以向客户端发送额外的空间和时间数据，以通过提供额外的几何形状和纹理数据来支持观看平截头体的变化，如果视点在空间上或时间上都是改变的，则几何和纹理数据可能会立即被使用。

8. 发明申请

US20130321590A1 GLANCING ANGLE EXCLUSION 有权
标题翻译：取消角度排除
公开(公告)号：US20130321590A1
公开(公告)日：2013-12-05
申请号：US13599436
申请日：2012-08-30
申请人： Adam G. Kirk
发明人： Adam G. Kirk
IPC分类号： H04N13/02
CPC分类号： G06T15/04 , G06T15/08 , G06T15/205 , G06T17/00 , G06T2210/56 , H04N7/142 , H04N7/15 , H04N7/157 , H04N13/117 , H04N13/194 , H04N13/239 , H04N13/243 , H04N13/246 , H04N13/257 , H04R2227/005 , H04S2400/15
摘要： The glancing angle exclusion technique described herein selectively limits projective texturing near depth map discontinuities. A depth discontinuity is defined by a jump between a near-depth surface and a far-depth surface. The claimed technique can limit projective texturing on near and far surfaces to a different degree—for example, the technique can limit far-depth projective texturing within a certain distance to a depth discontinuity but not near-depth projective texturing.
摘要翻译：本文描述的扫掠角度排除技术有选择地限制深度图不连续点附近的投影纹理。深度不连续性由近深表面和深深表面之间的跳跃限定。所要求的技术可以在不同程度上限制近表面和远表面上的投影纹理 - 例如，该技术可以将远程深度的投影纹理限制在一定距离内的深度不连续性，而不是深度投影纹理。

9. 发明申请

US20130321589A1 AUTOMATED CAMERA ARRAY CALIBRATION 有权
标题翻译：自动相机阵列校准
公开(公告)号：US20130321589A1
公开(公告)日：2013-12-05
申请号：US13566877
申请日：2012-08-03
申请人： Adam G. Kirk , Yaron Eshet , David Eraker
发明人： Adam G. Kirk , Yaron Eshet , David Eraker
IPC分类号： H04N17/02
CPC分类号： G06T15/04 , G06T15/08 , G06T15/205 , G06T17/00 , G06T2210/56 , H04N7/142 , H04N7/15 , H04N7/157 , H04N13/117 , H04N13/194 , H04N13/239 , H04N13/243 , H04N13/246 , H04N13/257 , H04R2227/005 , H04S2400/15
摘要： The automated camera array calibration technique described herein pertains to a technique for automating camera array calibration. The technique can leverage corresponding depth and single or multi-spectral intensity data (e.g., RGB (Red Green Blue) data) captured by hybrid capture devices to automatically determine camera geometry. In one embodiment it does this by finding common features in the depth maps between two hybrid capture devices and derives a rough extrinsic calibration based on shared depth map features. It then uses the intensity (e.g., RGB) data corresponding to the depth maps and uses the features of the intensity (e.g., RGB) data to refine the rough extrinsic calibration.
摘要翻译：本文所述的自动相机阵列校准技术涉及用于自动化相机阵列校准的技术。该技术可以利用由混合捕获设备捕获的相应深度和单光谱或多光谱强度数据（例如，RGB（红绿蓝）数据）来自动确定相机几何形状。在一个实施例中，它通过在两个混合捕获设备之间的深度图中找到共同特征来实现，并且基于共享深度图特征导出粗略的外在校准。然后，它使用对应于深度图的强度（例如，RGB）数据并使用强度（例如RGB）数据的特征来细化粗糙的外在校准。

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