TokyoTechCanon at TRECVID 2012
TokyoTechCanon at TRECVID 2012
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TokyoTechCanon 参加 TRECVID 2012
DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
K. Shinoda
中科院分区:
文献类型:
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作者:
Nakamasa Inoue;Yusuke Kamishima;Kotaro Mori;K. Shinoda
We aim at developing a high-performance semantic indexing system using Gaussian-mixture-model (GMM) supervectors and tree-structured GMMs [1, 2, 3]. GMM supervectors corresponding to six types of audio and visual features are extracted from video shots. Tree-structured GMMs reduce the computational cost of maximum a posteriori (MAP) adaptation for estimating GMM parameters while keeping accuracy at high levels. This year, we introduce two new low-level features of HOG-Dense and LBP-Dense and video-clip scores. HOG-Dense and LBP-Dense are extracted from up to 100 frames per shot by using dense sampling. The video-clip score is defined as the maximum value of shot scores among all the shots in a video clip and is used for re-ranking video shots. Our best result was 32.10% in terms of Mean InfAP, which was ranked first over all semantic indexing runs in the full task.
DOI:
10.1007/11744023_32
发表时间:
2006-01-01
期刊:
COMPUTER VISION - ECCV 2006 , PT 1, PROCEEDINGS
影响因子:
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作者:
Bay, Herbert;Tuytelaars, Tinne;Van Gool, Luc
通讯作者:
Van Gool, Luc