公开(公告)号：US07292635B2

公开(公告)日：2007-11-06

申请号：US10892447

申请日：2004-07-16

Applicant: Chang-hoon Yim ,  Ho-jin Ha ,  Bac-keun Lee ,  Woo-jin Han

Inventor： Chang-hoon Yim ,  Ho-jin Ha ,  Bac-keun Lee ,  Woo-jin Han

IPC: H04B1/66

CPC classification number: H04N19/53 ,  H04N19/13 ,  H04N19/61 ,  H04N19/615 ,  H04N19/63

Abstract: An interframe wavelet video coding (IWVC) method by which an average temporal distance (ATD) is minimized is provided. The IWVC method comprises receiving a group-of-frames and decomposing the group-of-frames into difference frames and first average frames between the frames in a first forward temporal direction and a backward temporal direction, wavelet-decomposing the first difference frames and the first average frames, and quantizing coefficients resulting from the wavelet-decomposition to generate a bitstream. The IWVC method provides improved video coding performance.

Abstract translation: 提供了将平均时间距离（ATD）最小化的帧间小波视频编码（IWVC）方法。 IWVC方法包括：接收一组帧，并将该组帧分解为第一前向和后向方向上的帧之间的差分帧和第一平均帧，小波分解第一差分帧和 第一平均帧和由小波分解产生的量化系数以产生比特流。 IWVC方法提供了改进的视频编码性能。

公开(公告)号：US20050013371A1

公开(公告)日：2005-01-20

申请号：US10892447

申请日：2004-07-16

Applicant: Chang-hoon Yim ,  Ho-jin Ha ,  Bac-keun Lee ,  Woo-jin Han

Inventor： Chang-hoon Yim ,  Ho-jin Ha ,  Bac-keun Lee ,  Woo-jin Han

IPC: H04N7/26 ,  H04N7/12

CPC classification number: H04N19/53 ,  H04N19/13 ,  H04N19/61 ,  H04N19/615 ,  H04N19/63

Abstract: An interframe wavelet video coding (IWVC) method by which an average temporal distance (ATD) is minimized is provided. The IWVC method comprises receiving a group-of-frames and decomposing the group-of-frames into difference frames and first average frames between the frames in a first forward temporal direction and a backward temporal direction, wavelet-decomposing the first difference frames and the first average frames, and quantizing coefficients resulting from the wavelet-decomposition to generate a bitstream. The IWVC method provides improved video coding performance.

Abstract translation: 提供了将平均时间距离（ATD）最小化的帧间小波视频编码（IWVC）方法。 IWVC方法包括：接收一组帧，并将该组帧分解为第一前向和后向方向上的帧之间的差分帧和第一平均帧，小波分解第一差分帧和 第一平均帧和由小波分解产生的量化系数以产生比特流。 IWVC方法提供了改进的视频编码性能。