ROI and FOI algorithms for wavelet-based video compression

Authors:
Chaoqiang Liu;Tao Xia;Hui Li
Affiliations:
Temasek Laboratories, Approximation and Information Processing, National University of Singapore;Centre for Wavelets, Approximation and Information Processing, National University of Singapore;Temasek Laboratories, Approximation and Information Processing, National University of Singapore
Venue:
PCM'04 Proceedings of the 5th Pacific Rim conference on Advances in Multimedia Information Processing - Volume Part III
Year:
2004

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Abstract

Many techniques make great contributions to video compression with removal of spatial and temporal redundancy in and between frames. However, compressed video is still rather large for applications such as surveillance system. In order to compress more, in video compression techniques, region-of-interest (ROI) and frames-of-interest (FOI) codings could be addressed to set high priority to ROI or FOI by allocating more bits than others. Normally, locations of related coefficients for the reconstruction of the ROI are calculated according to the filter lenghth. However, it is not efficient. In this paper a novel wavelet-based ROI and FOI scheme is proposed. Simulation results show excellent performance.