Shot change detection in H.264/AVC compression domain

碩士 === 國立交通大學 === 資訊科學與工程研究所 === 97 === Shot change detection algorithm is a fundamental step in automatic video content analysis, indexing, and retrieval. Shot change detection can apply to many kinds of video technology fields, for example, video codec compression quality and performance and trans...

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Main Authors: Chung-Fu Huang, 黃重輔
Other Authors: Wen-Jiin Tsai
Format: Others
Language:en_US
Published: 2008
Online Access:http://ndltd.ncl.edu.tw/handle/66133611113482875348
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spelling ndltd-TW-097NCTU53940262015-10-13T13:11:49Z http://ndltd.ncl.edu.tw/handle/66133611113482875348 Shot change detection in H.264/AVC compression domain 在H.264/先進視訊編碼壓縮領域中做鏡頭變化的偵測 Chung-Fu Huang 黃重輔 碩士 國立交通大學 資訊科學與工程研究所 97 Shot change detection algorithm is a fundamental step in automatic video content analysis, indexing, and retrieval. Shot change detection can apply to many kinds of video technology fields, for example, video codec compression quality and performance and transcode preparation…etc. This thesis proposed a new shot change detection method using edge direction similarity based on intra macroblcok prediction mode and the ratio of intra to inter macroblocks in H.264/AVC compression domain. The proposed shot change detection algorithm includes gradual shot change and cut shot change detection. In gradual shot change detection, we proposed a fade shot change detection algorithm, using intra macroblock ratio and P_SKIP macroblock ratio to decide start point and end point. Then edge direction similarity is used to judge if current detected frame is included in the gradual shot or not. In cut shot change detection, we use P-MB and B-MB ratio to detect candidate cut change frame, and then use proposed edge direction similarity to judge the candidate frame is a cut change or not. The experimental result shows that our proposed algorithm has a high accuracy in terms of recall and precision for a variety of video streams even they are variable bit rates. Our proposed edge direction similarity approach also can enhance shot change detection algorithms and achieve satisfactory performance. Wen-Jiin Tsai 蔡文錦 2008 學位論文 ; thesis 50 en_US
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description 碩士 === 國立交通大學 === 資訊科學與工程研究所 === 97 === Shot change detection algorithm is a fundamental step in automatic video content analysis, indexing, and retrieval. Shot change detection can apply to many kinds of video technology fields, for example, video codec compression quality and performance and transcode preparation…etc. This thesis proposed a new shot change detection method using edge direction similarity based on intra macroblcok prediction mode and the ratio of intra to inter macroblocks in H.264/AVC compression domain. The proposed shot change detection algorithm includes gradual shot change and cut shot change detection. In gradual shot change detection, we proposed a fade shot change detection algorithm, using intra macroblock ratio and P_SKIP macroblock ratio to decide start point and end point. Then edge direction similarity is used to judge if current detected frame is included in the gradual shot or not. In cut shot change detection, we use P-MB and B-MB ratio to detect candidate cut change frame, and then use proposed edge direction similarity to judge the candidate frame is a cut change or not. The experimental result shows that our proposed algorithm has a high accuracy in terms of recall and precision for a variety of video streams even they are variable bit rates. Our proposed edge direction similarity approach also can enhance shot change detection algorithms and achieve satisfactory performance.
author2 Wen-Jiin Tsai
author_facet Wen-Jiin Tsai
Chung-Fu Huang
黃重輔
author Chung-Fu Huang
黃重輔
spellingShingle Chung-Fu Huang
黃重輔
Shot change detection in H.264/AVC compression domain
author_sort Chung-Fu Huang
title Shot change detection in H.264/AVC compression domain
title_short Shot change detection in H.264/AVC compression domain
title_full Shot change detection in H.264/AVC compression domain
title_fullStr Shot change detection in H.264/AVC compression domain
title_full_unstemmed Shot change detection in H.264/AVC compression domain
title_sort shot change detection in h.264/avc compression domain
publishDate 2008
url http://ndltd.ncl.edu.tw/handle/66133611113482875348
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AT huángzhòngfǔ zàih264xiānjìnshìxùnbiānmǎyāsuōlǐngyùzhōngzuòjìngtóubiànhuàdezhēncè
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