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.