MPEG-2视频编码的色饱和度调整算法

骆立俊; 邹采荣; 何振亚

doi:10.11834/jig.199805114

计算机图象 | 浏览量 : 0 下载量: 169 CSCD: 0

PDF
导出
分享
收藏
专辑

MPEG-2视频编码的色饱和度调整算法
Color Saturation Adjustment Algorithm in Video Coding of MPEG-2
1998年3卷第5期页码：363
纸质出版：1998
DOI： 10.11834/jig.199805114
稿件说明：

移动端阅览

骆立俊, 邹采荣, 何振亚. MPEG-2视频编码的色饱和度调整算法[J]. 中国图象图形学报, 1998,3(5):363. DOI： 10.11834/jig.199805114.

Color Saturation Adjustment Algorithm in Video Coding of MPEG-2[J]. Journal of Image and Graphics, 1998, 3(5): 363. DOI： 10.11834/jig.199805114.

摘要

给出了一种用于MPEG-2视频编码的色饱和度调整算法，该算法采用了神经网络分类器将MPEG-2当前帧每个像素的色差信号分成色饱和度很高，色饱和度高，色饱和度低和色饱和度很低等4个区，然后分别加权得到色差信号的总修正因子用以调整图象的色饱和度，仿真结果表明，视频解码图象的主客观质量都有明显改善，可以有效调整图象序列中欠饱和和过饱和的图象。

Abstract

A color saturation adjustment algorithm of video coding in MPEG-2 is given in this paper. This algorithm divides the color difference signals of current frame into four color saturation regions of very high

high

low

very low region by using neural networks and derive the modification factor to adjust the color saturation of the current frame. Simulation results indicate that this method can improve the subjective and objectiv equality of video decoding frame in terms of decoding peak signal-to-noise ratio and color saturation.