公开(公告)号：US06363170B1

公开(公告)日：2002-03-26

申请号：US09302704

申请日：1999-04-29

申请人： Steven M. Seitz ,  Charles R. Dyer

发明人： Steven M. Seitz ,  Charles R. Dyer

IPC分类号： G06K900

CPC分类号： G06T15/205 ,  G06T17/00

摘要： A novel scene reconstruction technique is presented, different from previous approaches in its ability to cope with large changes in visibility and its modeling of intrinsic scene color and texture information. The method avoids image correspondence problems by working in a discretized scene space whose voxels are traversed in a fixed visibility ordering. This strategy takes full account of occlusions and allows the input cameras to be far apart and widely distributed about the environment. The algorithm identifies a special set of invariant voxels which together form a spatial and photometric reconstruction of the scene, fully consistent with the input images.

摘要翻译： 提出了一种新颖的场景重建技术，与以前的方法不同，它能够应付可见度的大变化及其对本征场景颜色和纹理信息的建模。 该方法通过在离散化的场景空间中工作来避免图像对应问题，其体素以固定的可见性排序进行遍历。 这一策略充分考虑到遮挡，并允许输入摄像机在环境上分布很广，分布广泛。 该算法识别一组不变体素，它们一起形成场景的空间和光度重建，与输入图像完全一致。

公开(公告)号：US06642924B1

公开(公告)日：2003-11-04

申请号：US09705419

申请日：2000-11-02

申请人： Sing Bing Kang ,  Peter-Pike J. Sloan ,  Steven M. Seitz

发明人： Sing Bing Kang ,  Peter-Pike J. Sloan ,  Steven M. Seitz

IPC分类号： G06T1510

CPC分类号： G06T15/40

摘要： A method and a system for obtaining visual information from an image sequence using a visual tunnel analysis are described. The present invention determines the position and orientation of rays captured in the image sequence and uses these rays to provide visual information. This visual information includes, for example, visual prediction information (whereby the extent of visibility and appearance of a virtual camera at arbitrary locations are determined) and visual planning (whereby a minimum number of images that need to be captured to visualize a desired region is determined). Generally, the visual tunnel analysis uses a subset of the plenoptic function to determine the position and orientation of every light ray passing through each point of images in the sequence. A visual tunnel associated with an input image sequence is a volume in visibility space that represents that portion of the visibility space occupied by the input image sequence. The visual tunnel is a representation of all light rays associated with the image sequence. The present invention encodes the orientation, appearance, and density of the available light rays at every point in free space.

摘要翻译： 描述了使用视觉隧道分析从图像序列获得视觉信息的方法和系统。 本发明确定在图像序列中捕获的光线的位置和方向，并使用这些光线来提供视觉信息。 该视觉信息例如包括视觉预测信息（由此确定任意位置处的虚拟摄像机的可见度和外观的程度）和视觉规划（从而需要捕获的图像的最小数量可视化所需区域是 决心）。 通常，视觉隧道分析使用全视角函数的子集来确定通过序列中的每个图像点的每个光线的位置和方向。 与输入图像序列相关联的视觉隧道是可见空间中的体积，其表示输入图像序列占据的可见性空间的那部分。 视觉隧道是与图像序列相关联的所有光线的表示。 本发明在自由空间中的每个点编码可用光线的取向，外观和密度。

公开(公告)号：US07813538B2

公开(公告)日：2010-10-12

申请号：US11749959

申请日：2007-05-17

申请人： Robert E. Carroll ,  Eric J. Seibel ,  Steven M. Seitz

发明人： Robert E. Carroll ,  Eric J. Seibel ,  Steven M. Seitz

IPC分类号： G06K9/00 ,  A61B5/05

CPC分类号： A61B1/07 ,  A61B1/00009 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/041 ,  A61B5/0062

摘要： In connection with imaging an inner surface of a body lumen, a mosaiced image is created from discrete images or a video produced with a small camera, as the camera is moved through the lumen. In one embodiment, a tethered capsule with a scanning optical fiber provides the images, although other types of endoscopic cameras can instead be used. A surface model of the lumen and camera pose estimates for each image or frame are required for this task. Camera pose parameters, which define camera alignment, are determined for six degrees-of-freedom. The size of each frame projected as a strip on the surface model depends on the longitudinal movement of the camera. The projected frames are concatenated, and the cylinder is unrolled to produce the mosaic image. Further processing, such as applying surface domain blending, improves the quality of the mosaic image.

摘要翻译： 结合对体腔的内表面进行成像，当照相机移动通过管腔时，从离散图像或用小型照相机产生的视频创建马赛克图像。 在一个实施例中，具有扫描光纤的系留胶囊提供图像，但是可以替代地使用其他类型的内窥镜照相机。 该任务需要每个图像或帧的流明和相机姿态估计的表面模型。 确定摄像机对准的摄像机姿态参数被确定为六自由度。 在表面模型上作为条带投影的每个框架的尺寸取决于相机的纵向移动。 投影帧连接，滚筒展开以产生马赛克图像。 进一步的处理，如应用表面域混合，提高了马赛克图像的质量。

公开(公告)号：US20080262312A1

公开(公告)日：2008-10-23

申请号：US11749959

申请日：2007-05-17

申请人： Robert E. Carroll ,  Eric J. Seibel ,  Steven M. Seitz

发明人： Robert E. Carroll ,  Eric J. Seibel ,  Steven M. Seitz

IPC分类号： A61B1/04

CPC分类号： A61B1/07 ,  A61B1/00009 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/041 ,  A61B5/0062

摘要： In connection with imaging an inner surface of a body lumen, a mosaiced image is created from discrete images or a video produced with a small camera, as the camera is moved through the lumen. In one embodiment, a tethered capsule with a scanning optical fiber provides the images, although other types of endoscopic cameras can instead be used. A surface model of the lumen and camera pose estimates for each image or frame are required for this task. Camera pose parameters, which define camera alignment, are determined for six degrees-of-freedom. The size of each frame projected as a strip on the surface model depends on the longitudinal movement of the camera. The projected frames are concatenated, and the cylinder is unrolled to produce the mosaic image. Further processing, such as applying surface domain blending, improves the quality of the mosaic image.

摘要翻译： 结合对体腔的内表面进行成像，当照相机移动通过管腔时，从离散图像或用小型照相机产生的视频创建马赛克图像。 在一个实施例中，具有扫描光纤的系留胶囊提供图像，但是可以替代地使用其他类型的内窥镜照相机。 该任务需要每个图像或帧的流明和相机姿态估计的表面模型。 确定摄像机对准的摄像机姿态参数被确定为六自由度。 在表面模型上作为条带投影的每个框架的尺寸取决于相机的纵向移动。 投影帧连接，滚筒展开以产生马赛克图像。 进一步的处理，如应用表面域混合，提高了马赛克图像的质量。