Wavelet transform based video compression algorithm and its application in video transmission
COMPUTER MODELLING & NEW TECHNOLOGIES 2013 17(5B) 60-63
School of Taiyuan University of Technology, Jinzhong City, Shanxi Province, China, 030600
This paper proposes a novel wavelet transform based video compression algorithm, and then we apply it in the video transmission. Firstly, we introduce a general video coding framework and Basic coding process in the video compression. Secondly, we design an improved wavelet transform in the video compression problem. The proposed modified wavelet transform is executed by a threshold or a bound, which can guarantee the pathway to discover a direction to satisfy the maximum zero engries. Afterwards, we define the path vectors with point subsets of a finite grid to modify the standard wavelet transform. Thirdly, we illustrate how to exploit the proposed wavelet transform based video compression algorithm and a FPGA chip in a video transmission system. Finally, we test the performance of our algorithm using the VIRAT Video Dataset. Compared with Wavelet-SPIHT and JPEG 2000, the conclusions can be drawn that the proposed can effectively compress videos and greatly promote the performance of video transmission as well.