Title :
Scalable coding and progressive transmission of concentric mosaic using nonlinear filter banks
Author :
Ng, King-To ; Chan, Shing-Chow ; Shun, Heung-Yeung
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, China
Abstract :
This paper studies the scalable coding and progressive transmission of concentric mosaic to support interactive applications over a LAN or the Internet. Concentric mosaic is an effective 3D image based representation of a static scene. A typical concentric mosaic might consist of thousands of images, which poses significant problem in digital storage and transmission. A new multiresolution decomposition for supporting progressive transmission of a concentric mosaic is proposed. Instead of using the popular 9/7 wavelet filterbank, a nonlinear perfect reconstruction filter bank with lower arithmetic complexity is employed. It also considerably simplifies the random access operation of the slit images during rendering. By encoding the subband signals into different layers, a scalable compressed bit stream of the concentric mosaic is obtained. Therefore, progressive transmission of concentric mosaic, using a combination of these layers, to support devices with different capabilities become possible
Keywords :
channel bank filters; computational complexity; data compression; image coding; image reconstruction; image representation; image resolution; nonlinear filters; rendering (computer graphics); 3D image based representation; Internet; LAN; arithmetic complexity; concentric mosaic; digital storage; digital transmission; image based rendering; interactive applications; multiresolution decomposition; nonlinear filter banks; nonlinear perfect reconstruction filter bank; progressive transmission; random access; scalable coding; scalable compressed bit stream; slit images; subband signal encoding; Arithmetic; Encoding; Filter bank; Image reconstruction; Image storage; Internet; Layout; Local area networks; Rendering (computer graphics); Signal resolution;
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
DOI :
10.1109/ICIP.2001.958437
