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A Block-Edge-Pattern-Based Content Descriptor in DCT Domain

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3 Author(s)
Jianmin Jiang ; Fac. of Comput. & Inf. Sci., Southwest Univ., Chongqing ; Kaijin Qiu ; Guoqiang Xiao

In this correspondence, we describe a robust and effective content descriptor based on block-edge patterns extracted in discrete cosine transform domain, which is suitable for applications in JPEG or MPEG compressed images and videos. This content descriptor is constructed by a run-length edge-block histogram with three patterns including horizontal edge, vertical edge and no edge. In comparison with existing descriptors, the proposed features: 1) low-cost computing suitable for real-time implementation and high-speed processing of compressed videos; 2) robust to orientation changes such as rotation, noise, reverse, etc.; 3) operates in compressed domain. Extensive experiments support that the proposed content descriptor is effective in describing visual content, and achieves superior performances in terms of retrieval precision and recall rates.

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Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:18 ,  Issue: 7 )