Xueyi Ye

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Iris recognition using complex valued 2D Gabor filters received a great success in broad applications. Such method encoded the iris phase information which was extracted according to the complex valued 2D filters' response. In this paper, we theoretically analyzed the complex-valued 2D Gabor filters. Based on analysis, we concluded that the real part of(More)
Owning to the expansion of network scale and complication of network construction, it has a big challenge to previous network monitoring technology. After analyzing the network monitoring technology and IA (intelligent agent) technology, in this paper, a method based on IA is proposed to complete dynamic network monitoring, developed by a cross-platform(More)
The contradiction between the capacity and the robustness of image watermark has not been solved in the digital watermark research. In this paper, a robust Discrete Wavelet Transform (DWT) - Singular Value Decomposition (SVD) watermark method based on multiple-level Discrete Cosine Transform (DCT) is proposed by the advantage of DCT's energy concentration.(More)
Face detection is an important first step towards solving plethora of other computer vision problems. A fast robust face detection algorithm under a skin color model with geometry constraints is proposed in this paper. An ellipse color model in the YCbCr color space is first used to detect the skin regions. A light compensation algorithm is utilized to the(More)
In this paper, we describe an effective steganalysis for four kinds of echo hiding based on combinatorial high order statistics. We analyze effect on power cepstrum, due to statistic characteristic changing with echo in stego speech. High order statistics of each segment of power cepstrum firstly are calculated, including coefficients of skewness and(More)