在视频编解码中，存在着两种不同的图像质量评价方式。一种方式是采用观察者的主观

感觉进行判断；另一种方式是采用客观的图像质量评价方式。这两种评价方式各有优点，但

也有不同的缺陷。主观质量评价的优点在于考虑了具体的需求，能够与观察者交互，但是其

缺点是太具有随意性， 很难给出定量的评价； 客观质量评价的优点在于能够给出定量的评价，

但存在的问题是目前还不能找到一种能够普遍适用的客观质量评价方法-In video coding, there are two different image quality evaluation. One way is to use observers to judge the subjective feeling　Another way is to use an objective image quality evaluation. The two evaluation methods have advantages, but also have different defects. The advantage of the subjective quality evaluation needs to consider specific, can interact with the observer, but the drawback is that too with the arbitrary, difficult to give a quantitative evaluation　objective quality evaluation of the advantage of able to give a quantitative evaluation, but there The problem is that currently can not find a way to generally applicable objective quality evaluation method