Abstract:

This paper proposes a novel no-reference video quality assessment method. By comparison of the extracted watermark embedded in transmitted video with the copy of original watermark in the destination, we can assess all restored video quality without any original reference video sequences. This method does not require any information about the test video sequence to be transmitted, so it can improve the utilization efficiency of the channel as well as keep the assessmeht in real time. Experiment shows that the assessed PSNR of reconstructed video quality is approximately equal to its true measured value, so this technique can be applied to the video quality assessment of wireless and IP video servies.

Key words: video quality assessment, no reference mode, digital watermark