Guanglei Fu

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This paper proposes a novel differential energy watermarking based on the Watson visual model, which inserts robust watermark into video streaming according to the differential energy theory. This algorithm can control the watermark's embedding intensity of sub-low AC coefficients in the video streaming adaptively based on the Watson visual model. And it(More)
Local features have been proved to be effective in image/video semantic analysis. The BOVW (bag of visual words) scheme can cluster local features to form the visual vocabulary which includes an amount of words, where each word is the center of one clustering feature. The vocabulary is used to recognize the image semantic. In this paper, a new scheme to(More)
—This paper proposes a novel self-adaptation differential energy watermarking based on the Watson visual model, which inserts robust watermark into video streaming according to the differential energy theory. This algorithm can control the watermark's embedding intensity of sub-low AC coefficients in the video streaming adaptively based on the Watson visual(More)
With the research of interest point detecting and local feature extracting, local feature has been proved to be an effective feature in image/video analysis. And the BOVW (bag of visual words) model aims to cluster local features and generates the visual vocabulary in order to recognize the image semantic. However, the traditional BOVW model has two major(More)
In this paper, a description of our participation in high‐level feature extraction at TRECVID 2009 will be given. Four runs had been submitted for our effort on the task. For those four runs, they have some common points and are based on one system. The basic elements for our work is different kinds of the descriptive of any frame(picture) retrieved from(More)
In this paper, a new method to identify the violent videos by the bag of audio words is introduced. The MPEG-7 audio descriptors are firstly extracted, including the low level features such as AudioSpectrumCentroid and AudioSpectrum-Spread, etc. The audio words are then built according to the MPEG-7 high level descriptor, the AudioSighnature, which is(More)
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