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A confidence measure based moving object extraction system built for compressed domain

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3 Author(s)
Wang, R. ; Beckman Inst. for Adv. Sci. & Technol., Illinois Univ., Urbana, IL, USA ; Hong-Jiang Zhang ; Ya-Qin Zhang

As the proliferation of compressed video sequences in MPEG formats continues, the ability to perform video analysis directly in the compressed domain becomes increasingly attractive. The availability of motion vectors and pixel values in coded forms can indirectly provide motion and intensity information for object analysis, avoiding the need to re-perform motion estimation. Albeit that the embedded motion field is contaminated with matching modeling errors and measurement errors, we will illustrate several motion field filtering and correction techniques to combat with noisy motion fields. We strive to reconstruct smooth true motion fields with a minimal amount of decoding, reducing computational resource and time requirement. In this paper, we describe the whole moving object extraction system with the general framework and component designs and show their effectiveness with two test sequences

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Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on  (Volume:5 )

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