数字高速视频图像的解码算法  

A decoding algorithm for digital highs-speed video image

作　　者：黄战华[1] 蔡怀宇[1] 张昊[1] 李蒙[1] 贾英杰[1] 张以谟[1] 

机构地区：[1]光电信息技术科学教育部重点实验室天津大学精密仪器与光电子工程学院,天津300072

出　　处：《光电工程》2004年第5期38-41,共4页Opto-Electronic Engineering

摘　　要：对数字化高速视频解码提出了一种改良方法:进行线性解码插值时,对原采样点样本再进 行一次平均补偿,克服颗粒噪声;采用三次插值时,调整负系数比例,补偿γ值的非线性效应,能有效克服颜色错位和“振铃”效应等。理论分析和实验均表明,该算法较好地适应于数字化高速视频解码。A newly improved method for decoding digitalized high-speed video is proposed. When linearly decoding and interpolation is carried out, an even compensation will be performed for the original sampling point again to overcome grain noise. When the cubic interpolation is carried out, negative coefficient proportion will be adjusted and nonlinear effect of ?value will be compensated, thus can effectively overcome color error and ring effect. Both theoretical analysis and experiments show that the algorithm can suit to digital high-speed video decoding.

关 键 词：图像解码 数字图像 高速视频图像 高速摄像 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]