公开(公告)号：US20140037012A1

公开(公告)日：2014-02-06

申请号：US14051020

申请日：2013-10-10

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Gisle BJONTEGAARD ,  Arild Fuldseth

IPC: H04N7/50

CPC classification number: H04N19/615 ,  G06F17/147 ,  H04N19/619 ,  H04N19/625

Abstract: A video coding/decoding system, method and computer program product employ an integer transform matrix for transforming to/from transform coefficients and residual pixel data in moving pictures by a set of semi-orthonormal basis vectors. The basis vectors are derived from conventional DCT or KTL matrixes, but relaxes to some extent the requirements for orthogonality, norm equality and element size limitation. In this way improved coding efficiency and lower complexity compared to previously used integer transforms are possible.

Abstract translation: 视频编码/解码系统，方法和计算机程序产品采用整数变换矩阵，用于通过一组半正交基矢量在运动图像中变换到变换系数和残差像素数据。 基本向量从常规DCT或KTL矩阵导出，但在一定程度上放宽了对正交性，范数等式和元素大小限制的要求。 以这种方式，与以前使用的整数变换相比，改进的编码效率和较低的复杂度是可能的。