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With extending applications of digital surveillance video, the fast browsing technique for surveillance video has become a hot spot in the domain. As one of the most important supporting technologies, region of interest (ROI) information coding is a necessary part of fast browsing framework for surveillance video. Therefore, a novel coding method of object region flags and successful application of object mapping flags for the scalable browsing of surveillance video are proposed in this paper. This object region flags coding method includes both intra-frame coding and inter-frame coding, wherein, the former eliminates the redundancy in spatial domain by improving the scanning mode of region flags, the latter eliminates the redundancy in temporal domain, which cuts coding cost obviously and provides essential supports for video synopsis browsing of surveillance video.
Wang et al. (Thu,) studied this question.
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