Some studies of the experimental data show that, H. 264 is much better than the other existing video coding standard in the SNR, compression efficiency and visual effects.
一些研究的实验数据表明，H . 264在信噪比，压缩效率和视觉效果方面，都远远好于现有的其它视频编码标准。
Many difficulties are existed when the moving objects will be detected from the image with video rate under the conditions of low SNR.
在低信噪比条件下，要从图象中以视频速率检测出运动目标存在不少困难。
A new method for testing the video signaltonoise ratio (SNR) of television tracking system was brought forward, in which 3D noise theory and digital image processing technique was adopted.
提出了一种采用三维噪声理论和数字图像处理技术对电视跟踪系统视频信噪比（SNR）进行测试的新方法，并给出了测试系统的结构框图和部分测试结果。
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