公开(公告)号：EP2954490A1

公开(公告)日：2015-12-16

申请号：EP14702296.6

申请日：2014-02-04

申请人： Thomson Licensing

发明人： CONZE, Pierre-Henri ,  ROBERT, Philippe ,  CRIVELLI, Tomas ,  MORIN, Luce

IPC分类号： G06T7/20

CPC分类号： G06T7/2033 ,  G06T7/246 ,  G06T2207/10016 ,  G06T2207/20016 ,  G06T2207/20032 ,  G06T2207/30241 ,  H04N19/52 ,  H04N19/537 ,  H04N19/56 ,  H04N19/577 ,  H04N19/58

摘要： The invention relates to a method for generating a motion field between a current frame and a reference frame belonging to a video sequence from an input set of motion fields. An motion field is associated to an ordered pair of frames comprises for a group of pixels belonging to a first frame of the ordered pair of frames, a motion vector computed from a location of the pixel in the first frame to an endpoint in a second frame of the ordered pair of frames. The method comprises a step for determining a plurality of motion paths from a current frame to a reference frame wherein a motion path comprises a sequence of N ordered pairs of frames associated to the input set of motion fields and wherein a first frame of an ordered pair corresponds to a second frame of the previous ordered pair in the sequence; the first image of the first ordered pair is the current frame; the second frame of the last ordered pair is the reference frame; and N is an integer. The method then comprises a step for determining, for the group of pixels belonging to the current frame, a plurality of candidate motion vectors from the current frame to the reference frame wherein a candidate motion vector is the result of a sum of motion vectors; each motion vector belonging to a motion field associated to an ordered pair of frames according to a determined motion path. And the method then comprises a step for selecting, for the group of pixels belonging to the current frame, a candidate motion vector among the plurality of candidate motion vectors.

摘要翻译： 公开了一种从输入的运动场组合产生属于视频序列的当前帧与参考帧之间的运动场的方法。 运动场与有序的帧对相关联，包括属于有序对帧的第一帧的一组像素，从第一帧中的像素的位置到第二帧中的端点计算的运动矢量 的有序对框架。 该方法包括确定从当前帧到参考帧的多个运动路径，其中运动路径包括与运动场的输入集合相关联的N个有序对帧对的随机序列; N是整数。 该方法包括：对于属于当前帧的像素组，确定从当前帧到参考帧的多个候选运动矢量，其中候选运动矢量是运动矢量之和的结果; 每个运动矢量属于根据确定的运动路径与有序对帧对相关联的运动场。 然后，该方法包括为属于当前帧的像素组选择多个候选运动矢量中的运动矢量。

公开(公告)号：EP2803041A1

公开(公告)日：2014-11-19

申请号：EP12769115.2

申请日：2012-10-08

申请人： Thomson Licensing

发明人： ALJ, Youssef ,  BOISSON, Guillaume ,  MORIN, Luce ,  BORDES, Philippe ,  PRESSIGOUT, Muriel

IPC分类号： G06T15/04 ,  G06T17/20 ,  G06T7/00

CPC分类号： G06T15/04 ,  G06T7/55 ,  H04N13/275 ,  H04N13/282

摘要： A method for texturing a mesh associated with a surface representative of a scene captured in a plurality of images, wherein at least a mesh element of the mesh is at least partially visible from at least two first images of the plurality of images. As to reduce the amount of texture information associated with multi-views data representative of the scene, the method comprises for each first image (110 to 140), association of a first texture information with the mesh element, projection of the first texture information in the at least two first images, for each first texture information, estimation of an error information according to a comparison result between the projected first texture information and the texture information of said at least two first images, and selection of one of the at least two first texture information according to the error information.

摘要翻译： 本发明涉及一种用于对与表面（1）相关联的网格进行纹理化的方法，所述表面（1）表示在多个图像（110至150）中捕捉的场景，其中所述网格的至少一个网格元素（10） 所述多个图像（110至150）中的至少两个第一图像（110至140）。 为了减少与表示场景的多视角数据相关联的纹理信息的量，该方法包括： - 对于每个第一图像（110至140），将第一纹理信息与所述网格元素（10）相关联， - 投影 在所述至少两个第一图像（110至140）中的第一纹理信息中，对于每个第一纹理信息，根据投影的第一纹理信息和所述至少两个纹理信息之间的比较结果来估计误差信息 第一图像（110至140），以及 - 根据所述错误信息选择所述至少两个第一纹理信息中的一个。 本发明还涉及相应的计算单元。