Patent ID: 8184164
Filing Date: 2012-05-22
Classification: G06T,H04N

Abstract:
1. A method for measuring multimedia video communication quality, comprising: uniformly dividing the multimedia video data frames into blocks of equal size; embedding an equal amount of the original watermark data in a part of the blocks or all of the blocks at a transmitting side; transmitting the multimedia video data to a receiving side; extracting a recovered watermark from the received multimedia video data at the receiving side; and calculating a distortion degree of the recovered watermark relative to the original watermark, wherein uniformly dividing the multimedia video data frames into blocks of equal size, and embedding an equal amount of the original watermark data in a part of the blocks or all of the blocks at a transmitting side comprises: dividing the multimedia video data into groups at the transmitting side, each group comprising an equal number of frames, and selecting at least two frames with an equal interval in a same group as embedded frames, uniformly dividing each of the embedded frame into a plurality of blocks of equal size, selecting an equal number of blocks from the plurality of blocks as embedded blocks, and embedding an equal amount of the original watermark data in each of the embedded blocks.