National Tsing Hua University Institutional Repository:A novel motion estimation method based on normalized cross correlation for video compression
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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 資訊工程學系 > 會議論文  >  A novel motion estimation method based on normalized cross correlation for video compression


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    题名: A novel motion estimation method based on normalized cross correlation for video compression
    作者: Shou-Der Wei;Wei-Hau Pan;Shang-Hong Lai
    教師: 賴尚宏
    日期: 2007
    出版者: Springer Verlag
    關聯: Lecture Notes in Computer Science,v 4903 LNCS,p 338-347,2008
    关键词: SAD
    NCC
    compressed video
    ME
    摘要: In this paper we propose to use the normalized cross correlation (NCC) as the similarity measure for block-based motion estimation (ME) to replace the sum of absolute difference (SAD) measure. NCC is a more suitable similarity measure than SAD for reducing the temporal redundancy in video comparison since we can obtain flatter residual after motion compensation by using the NCC as the similarity measure in the motion estimation. The flat residual results in large DC term and smaller AC term, which means less information is lost after quantization. Thus, we can obtain better quality in the compressed video. Experimental results show the proposed NCC-based motion estimation algorithm can provide similar PSNR but better SSIM than the traditional full search ME with the SAD measure.
    URI: http://www.springerlink.com/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/67267
    显示于类别:[資訊工程學系] 會議論文

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