Yuesheng Zhu

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Video summarization is not only the key to effective cataloging and browsing video, but also as an embedded cue to trace video object activities. In this paper, a video summarization approach based on machine learning is developed for automatic video transition prediction. Several novel features are extracted to characterize video boundary, including cut,(More)
3D video provides an immersive experience to viewers and is getting more and more popular. The solution to create 3D video from 2D video is low-cost compared with that captures 3D video directly, and the generation of depth map from 2D video is a key in the 2D-3D video conversion systems. Therefore, protection of depth map is vital for 3D video. In this(More)
Depth-Image-Based Rendering (DIBR) is widely used to generate virtual view of a scene from a known view with associated depth map in 3D video applications. However, disocclusion arises in image warping of DIBR. Many hole-filling methods have been proposed such as constant color, horizontal interpolation, horizontal extrapolation, and variational inpainting,(More)
Embedding watermark into H.264/AVC streams directly can reduce computational complexity compared to encoder-based watermarking algorithms. However, it would cause intra error propagation and decrease the video quality. To improve the video quality and reduce the computational complexity, an improved compensation scheme is developed in this paper. In this(More)
In this work, we propose a robust watermarking algorithm for video copyright protection. The proposed algorithm is characterized by four key features. First, a robust feature obtained by singular value decomposition is selected to embed the watermark. Second, a novel slope-based embedding technique is developed to embed a 1-bit watermark into several(More)
A memory efficient hardware string searching engine for anti-virus applications is presented. The proposed QSV method is based on quick sampling of the input stream against fixed-length pattern prefixes, and on-demand verification of variable-length pattern suffixes. Patterns handled by the QSV method are required to have at least 16 bytes, and possess(More)
Currently, most of the watermarking algorithms for H.264/AVC video coding standard are encoder-based due to their high perceptual quality. However, for the compressed video, they increase the computational burden to decode the video, embed the watermark, and then re-encode it. Obviously it is a bottleneck for real-time applications. Conventional(More)
High resolution broadband source direction of arrival (DOA) estimation is a challenge problem in acoustic array signal processing. While the compressive sensing (CS) is a recent theory exploring the signal sparsity representation, which has been received considerable attentions in various research areas. In this paper, we study on the DOA estimation under(More)