公开(公告)号：US20120008689A1

公开(公告)日：2012-01-12

申请号：US13071851

申请日：2011-03-25

Applicant: Osamu NASU ,  Yoshiki Ono ,  Toshiaki Kubo ,  Koji Minami

Inventor： Osamu NASU ,  Yoshiki Ono ,  Toshiaki Kubo ,  Koji Minami

IPC: H04N7/26

CPC classification number: H04N19/587 ,  H04N19/132 ,  H04N19/53 ,  H04N19/57

Abstract: To interpolate a frame between two frames of a video signal, sets of reference images are generated, each set having a different resolution level. Motion between the two frames is estimated at each resolution level by using these sets of reference images. For each pixel processed at each resolution level, multiple motion vector candidates are obtained. Information indicating the multiple motion vector candidates is used to select motion search ranges at the next higher resolution level. To determine the motion search range for a pixel, selected motion vector candidates pertaining both to the pixel itself and to its neighboring pixels are used. An interpolated frame of high image quality is thereby obtainable without increased computation and with reduced risk of major image defects due to erroneous motion estimation.

Abstract translation: 为了内插视频信号的两帧之间的帧，生成参考图像组，每组具有不同的分辨率级别。 通过使用这些参考图像组，在每个分辨率级别估计两帧之间的运动。 对于在每个分辨率级处理的每个像素，获得多个运动矢量候选。 指示多个运动矢量候选的信息用于选择下一较高分辨率级别的运动搜索范围。 为了确定像素的运动搜索范围，使用与像素本身及其相邻像素相关的所选运动矢量候选。 从而可以在不增加计算的情况下获得高图像质量的内插帧，并且由于错误的运动估计导致主要图像缺陷的风险降低。

公开(公告)号：US20120093225A1

公开(公告)日：2012-04-19

申请号：US13226542

申请日：2011-09-07

Applicant: Toshiaki KUBO ,  Yoshiki ONO ,  Naoyuki FUJIYAMA ,  Tomoatsu HORIBE ,  Osamu NASU

Inventor： Toshiaki KUBO ,  Yoshiki ONO ,  Naoyuki FUJIYAMA ,  Tomoatsu HORIBE ,  Osamu NASU

IPC: H04N7/26

CPC classification number: H04N7/467 ,  H04N19/543 ,  H04N19/587 ,  H04N19/86

Abstract: To interpolate a frame between the current frame and a first delayed frame preceding the current frame, an image processing device generates test interpolation data for the first delayed frame from data in point-symmetric positions in the current frame and in a second delayed frame preceding the first delayed frame. Motion vectors pointing from the first delayed frame to the current frame are found by evaluating different test interpolation data against the actual data of the first delayed frame. These motion vectors are converted to pairs of motion vectors pointing from the first delayed frame and the current frame to the interpolated frame, and these pairs of motion vectors are used to detect occlusion and generate accurate data for the interpolated frame from the data of the first delayed frame and the current frame, excluding occluded data.

Abstract translation: 为了内插当前帧与当前帧之前的第一延迟帧，图像处理设备从当前帧中的点对称位置的数据和在当前帧之前的第二延迟帧中生成用于第一延迟帧的测试插值数据 第一延迟帧。 通过针对第一延迟帧的实际数据评估不同的测试插值数据，找到从第一延迟帧指向当前帧的运动矢量。 这些运动矢量被转换为从第一延迟帧和当前帧指向内插帧的运动矢量对，并且这些运动矢量对被用于检测遮挡并且从第一个帧的数据生成内插帧的准确数据 延迟帧和当前帧，不包括闭塞数据。

公开(公告)号：US20120154675A1

公开(公告)日：2012-06-21

申请号：US13291585

申请日：2011-11-08

Applicant: Osamu NASU ,  Yoshiki Ono ,  Toshiaki Kubo ,  Naoyuki Fujiyama ,  Tomoatsu Horibe

Inventor： Osamu NASU ,  Yoshiki Ono ,  Toshiaki Kubo ,  Naoyuki Fujiyama ,  Tomoatsu Horibe

IPC: H04N7/01

CPC classification number: H04N5/145 ,  H04N7/014

Abstract: To interpolate a frame between a first frame and a second frame in a video signal, a motion-compensated interpolated frame is generated and then corrected responsive to detection of a motion vector boundary. Positions at which an absolute value of a first or second derivative of the motion vectors is not less than a predetermined amount are found to be at a motion vector boundary, and the pixel values of the pixels in an area where boundary pixels are concentrated are corrected. Blocks with at least a predetermined proportion of boundary pixels are found to be in an area where boundary pixels are concentrated.

Abstract translation: 为了内插视频信号中的第一帧和第二帧之间的帧，产生运动补偿内插帧，然后响应于运动矢量边界的检测而被校正。 发现运动矢量的第一或第二导数的绝对值不小于预定量的位置处于运动矢量边界，并且校正边界像素集中的区域中的像素的像素值 。 发现具有至少一定比例的边界像素的块位于边界像素集中的区域中。