实验结果表明，该方法大大提高了编码速度，而且能获得高压缩比和满意的恢复图象质量。
Experimental results show that the coding speed is much enhanced while high compression ratio and well-reconstructed image can be obtained.
MPEG4是一种压缩率高、对传输带宽要求低、图像质量高的图象编码技术。
MPEG4 is a video coding technology with the characters of high compression ratio, low requirement for transmission bandwidth and high quality of image.
在人脸序列的图象编码中，由于模型基编码方法可以获得高的主观图象质量和低的码率，因而受到广泛重视。
Model based facial image coding has received extensive attention due to its high subjective image quality and low bit rates.
该方法对编码器只需作很小的修改，所增加的信息冗余度很小，实验结果表明采用此方法后重建图象质量得到明显提高。
The approach makes little modification to the existing encoder and has the feature of rising efficiency of transmission by utilizing postprocessing techniques at …
用于考核演播室设备质量的菲利浦分辨率测试卡，因为边沿含量高，按上述码率编码时不能获得满意的图象质量。
The Philip resolution chart, which is used to examine quality of studio facilities, can not be coded at low bit rate with a good quality be-cause of the high edge content.
用于考核演播室设备质量的菲利浦分辨率测试卡，因为边沿含量高，按上述码率编码时不能获得满意的图象质量。
The Philip resolution chart, which is used to examine quality of studio facilities, can not be coded at low bit rate with a good quality be-cause of the high edge content.
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