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随着压缩数字视频技术日益广泛的应用，如何对视频压缩系统进行评价，成了传送高质量数字视频信号的先决条件和关键所在。对于开发压缩技术产品的厂商和在其它应用领域使用压缩技术产品的用户来说，就显得更为重要。事实证明，评价和比较经压缩解压缩后的图像质量，实在是一项
With the increasing use of compressed digital video technology, how to evaluate a video compression system has become a prerequisite and key to delivering high quality digital video signals. For the development of compression technology products manufacturers and in other applications using compressed technology products, users, it is even more important. Facts have proved that it is really a matter of evaluating and comparing the image quality after compression and decompression