公开(公告)号：US20110080954A1

公开(公告)日：2011-04-07

申请号：US12890400

申请日：2010-09-24

申请人： Frank J. Bossen ,  Sandeep Kanumuri

发明人： Frank J. Bossen ,  Sandeep Kanumuri

IPC分类号： H04N7/26

CPC分类号： H04N19/577 ,  H04N19/00 ,  H04N19/52 ,  H04N19/573

摘要： A method and apparatus is disclosed herein for motion vector prediction and coding. In one embodiment, the method comprises: deriving N motion vector predictors for a first block that has N motion vectors corresponding to N lists of reference frames and a current frame, including constructing one of the N motion vector predictors when a second block that neighbors the first block and is used for prediction has at least one invalid motion vector, where N is an integer greater than 1; generating N differential motion vectors based on the N motion vectors and N motion vector predictors; and encoding the N differential motion vectors.

摘要翻译： 本文公开了一种用于运动矢量预测和编码的方法和装置。 在一个实施例中，该方法包括：为具有N个对应于N个参考帧和当前帧的N个运动矢量的第一块导出N个运动矢量预测器，其包括当邻近所述N个运动矢量预测器 第一块并且用于预测具有至少一个无效运动矢量，其中N是大于1的整数; 基于N个运动矢量和N个运动矢量预测器产生N个差分运动矢量; 并对N个差分运动矢量进行编码。

公开(公告)号：US06452596B1

公开(公告)日：2002-09-17

申请号：US09296833

申请日：1999-04-22

申请人： Andre P Gueziec ,  Frank J Bossen ,  Gabriel Taubin ,  Claudio Silva

发明人： Andre P Gueziec ,  Frank J Bossen ,  Gabriel Taubin ,  Claudio Silva

IPC分类号： G06T1120

CPC分类号： G06T9/001

摘要： A method for encoding a non-manifold polygonal mesh operates by converting an original (non-manifold) model to a manifold model, encoding the manifold model using a mesh compression technique, and clustering, or stitching together during a decompression process, vertices that were duplicated earlier to faithfully recover the original connectivity. By separating the connectivity from model geometry and properties, the method avoids encoding vertices (and properties bound to vertices) multiple times. This provides a reduction in the size of the bit-stream compared with encoding the model as a manifold.

摘要翻译： 用于编码非歧管多边形网格的方法通过将原始（非歧管）模型转换为歧管模型来进行操作，使用网格压缩技术对歧管模型进行编码，并且在解压缩过程期间聚类或拼接在一起， 早先重复，以忠实地恢复原来的连接。 通过将连接与模型几何和属性分离，该方法多次避免编码顶点（和绑定到顶点的属性）。 与将模型编码为歧管相比，这提供了比特流的尺寸的减小。

公开(公告)号：US06445389B1

公开(公告)日：2002-09-03

申请号：US09411448

申请日：1999-10-01

申请人： Frank J. Bossen ,  Andre P. Gueziec ,  Claudio T. Silva ,  Gabriel Taubin

发明人： Frank J. Bossen ,  Andre P. Gueziec ,  Claudio T. Silva ,  Gabriel Taubin

IPC分类号： G06T1700

CPC分类号： G06T17/20

摘要： A data structure for representing a general n-dimensional polygonal mesh. The data structure includes a structure record and a data record for each three dimensional shape. The structural record contains polygonal model connectivity information and further includes a stitching record that defines corresponding polygonal (triangular) mesh edge pairs and a polygonal (triangular) tree record representing a polygon (triangle) tree. The stitching record includes a vertex tree and a set of jump edges. The data record includes at least three polygonal records, each corresponding to a polygon. Each polygonal record is associated with a face of said polygonal model and classifies its corresponding polygon as either a leaf polygon, a running polygon or a branching polygon. Polygonal shapes are encoded into the data structure by first building a spanning tree for the polygonal mesh. A set of cut edges are derived for the polygonal mesh. The stitching record is constructed for the set of cut edges. Then traversing the polygon tree, the data records are encoded. The encoded data is transmitted, the structure record being transmitted first, followed by the data record. The stitching tree and polygon tree are decoded as they are received and, after at least three polygons are received, received polygons may be displayed.

摘要翻译： 用于表示一般的n维多边形网格的数据结构。 数据结构包括用于每个三维形状的结构记录和数据记录。 结构记录包含多边形模型连接信息，并且还包括定义相应的多边形（三角形）网格边对的拼接记录和表示多边形（三角形）树的多边形（三角形）树记录。 拼接记录包括顶点树和一组跳跃边。 数据记录包括至少三个多边形记录，每个对应于多边形。 每个多边形记录与所述多边形模型的面相关联，并将其对应的多边形分类为叶多边形，运行多边形或分支多边形。 通过首先构建多边形网格的生成树，将多边形形状编码到数据结构中。 为多边形网格导出一组切割边。 针对一组切割边缘构造缝合记录。 然后遍历多边形树，对数据记录进行编码。 发送编码数据，结构记录首先发送，后跟数据记录。 拼接树和多边形树在被接收时被解码，并且在接收到至少三个多边形之后，可以显示接收的多边形。

公开(公告)号：US09060176B2

公开(公告)日：2015-06-16

申请号：US12890400

申请日：2010-09-24

申请人： Frank J. Bossen ,  Sandeep Kanumuri

发明人： Frank J. Bossen ,  Sandeep Kanumuri

IPC分类号： H04N7/26 ,  H04N19/577 ,  H04N19/52 ,  H04N19/573 ,  H04N19/00

CPC分类号： H04N19/577 ,  H04N19/00 ,  H04N19/52 ,  H04N19/573

摘要： A method and apparatus is disclosed herein for motion vector prediction and coding. In one embodiment, the method comprises: deriving N motion vector predictors for a first block that has N motion vectors corresponding to N lists of reference frames and a current frame, including constructing one of the N motion vector predictors when a second block that neighbors the first block and is used for prediction has at least one invalid motion vector, where N is an integer greater than 1; generating N differential motion vectors based on the N motion vectors and N motion vector predictors; and encoding the N differential motion vectors.

摘要翻译： 本文公开了一种用于运动矢量预测和编码的方法和装置。 在一个实施例中，该方法包括：为具有N个对应于N个参考帧和当前帧的N个运动矢量的第一块导出N个运动矢量预测器，其包括当邻近所述N个运动矢量预测器 第一块并且用于预测具有至少一个无效运动矢量，其中N是大于1的整数; 基于N个运动矢量和N个运动矢量预测器产生N个差分运动矢量; 并对N个差分运动矢量进行编码。