A Research of Multiresolution Image Sequence Coding System Based on Wavelet Transform

An integrated image sequence coding system based on wavelet transform is presented in this paper. First, by means of wavelet transform, an image signal is decomposed into a series of subspaces which make up a multiresolution approximation to the original image signal. On the basis of analyzing for the quantization noises, a bit allocation means of sub-images and two quantization methods involving intra-frame and inter-frame are derived. In accordance with the spatial orientation of sub-images, a proper scanning approach is selected for employment. A revised Test Model 5(TM5) bit-rate control scheme and a variable block-size multiresolution motion estimation(VBMRME) method are discussed. Finally, the simulation experiment is carried out and the satisfactory results are obtained.

Published

1996-10

Content type

Original Research

Keywords

wavelet transform, image sequence coding, multiresolution motion estimation, quantization, bit-rate control

DOI

10.5594/M001248

ISBN

978-1-61482-947-8