公开(公告)号：US09247248B2

公开(公告)日：2016-01-26

申请号：US13769735

申请日：2013-02-18

Applicant: SONY COMPUTER ENTERTAINMENT INC.

Inventor： Jason N. Wang ,  Rathish Krishnan ,  Michael Kutner ,  Milan Mehta ,  Cheng Huang ,  Yi Luo ,  Jon Brelin

IPC: H04B1/66 ,  H04N19/50 ,  H04N19/176 ,  H04N19/147 ,  H04N19/61 ,  H04N19/11 ,  H04N19/103 ,  H04N19/109 ,  H04N19/174 ,  H04N19/436 ,  H04N19/86

CPC classification number: H04N19/50 ,  H04N19/103 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/61 ,  H04N19/86

Abstract: Mode searching and early termination of a video picture may include determining the cost value of a simple intra-mode prediction of the video picture; determining the cost value of an inter-mode prediction of the video picture; determining a threshold value based on a given quantization parameter (QP); comparing the cost value of the simple intra-mode prediction to the sum of the cost value of the inter-mode prediction and the threshold value; and performing a mode-prediction of the video picture in accordance with the result obtained. Fast compression of variable length symbols may include receiving a variable length symbol with one or more tokens; combining the one or more tokens in the variable length symbol to form a token combination; and determining a bit representation of the token combination in correspondence to a probability threshold associated with the token combination.

Abstract translation: 视频图像的模式搜索和提前终止可以包括确定视频图像的简单帧内模式预测的成本值; 确定视频图像的模式间预测的成本值; 基于给定的量化参数（QP）确定阈值; 将简单帧内预测的成本值与帧间模式预测的成本值和阈值的和进行比较; 以及根据获得的结果执行视频图像的模式预测。 可变长度符号的快速压缩可以包括用一个或多个令牌接收可变长度符号; 组合可变长度符号中的一个或多个令牌以形成令牌组合; 以及根据与所述令牌组合相关联的概率阈值确定所述令牌组合的比特表示。