Improved JPEG2000 Algorithm Using a Novel 97 Wavelet
一种新97小波改进的JPEG2000算法

An improved JPEG2000 algorithm is proposed to meet the realtime requirements of video supervisory system under the limited bandwidth. Firstly, a novel symmetric biorthogonal 97 wavelet is constructed based on the Cohen-Daubechies-Feauveau Theorem, vanishing moments condition and the lifting scheme. Then the constructed 97 wavelet is introduced to substitute CDF97 wavelet of JPEG2000 algorithm in order to improve JPEG2000 performance. Compared with traditional CDF97, the new 97 wavelet has a faster processing performance for its remarkably less computational complexity of image compression, while the compression performance is almost the same as that of CDF97 wavelet. At last, the experimental results of applying the proposed algorithm in a video surveillance system validate the predominance.