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《Acta Optica Sinica》 2008-01
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A Low Complexity Multi-View Video Coding Scheme for Wireless Video Sensor Array

Jiang Gangyi1,2 Jiang Hao1 Yu Mei1 Jiang Zhidi1 Liu Weiyue11Institute of Circuits and Systems,Ningbo University,Ningbo,Zhejiang 315211,China2National Key Laboratory of Vision and Auditory,Peking University,Beijing 100871,China  
A novel multi-view video coding scheme with low complexity is proposed for wireless video sensor array based on motion-vector extrapolation at central node of network.It is noted that communication among cameras is difficult for implementation in dense video sensor array,and the encoder embedded in the camera is unable to accomplish complex encoding process due to the limitation of computational capability and power consumption.Therefore,motion-vector extrapolation is utilized to move the motion estimation out of the encoder to the central node of network,so that the complexity of motion estimation at the encoder is reduced to 0.3% compared with the traditional exhaustive block matching algorithm,and the power consumption at the encoder of the sensor array is also reduced.Experimental results show that the proposed method outperforms H.264 intra-frame coding more than 4 dB and approaches to H.264 inter-frame coding,and it also performs better than Wyner-Ziv coding schemes.
【Fund】: 国家自然科学基金(60472100、60672073);; 教育部新世纪人才支持计划项目(NCET-06-0537);; 教育部科学技术研究重点项目(2060059);; 浙江省自然科学基金(Y105577)资助课题
【CateGory Index】: TN919.81
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