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This paper presents a watercolor rendering technique that recreates the artistic effects. Visual features make focused object apply different simulation value. The method is organized in two steps: Image abstraction based on the weight-map; Detail verisimilitude of watercolor features. Verisimilitude includes color space conversion, boundary region diffusion, morphological smoothing, and adding texture...
A novel adaptive filtering scheme based on Fractional Fourier Transform (FRFT) for time-varying linear frequency modulated (LFM) signal is introduced and characterized using the characteristic of good energy concentration on LFM signal in FRFT domain. Grading iterative calculation method is used to obtain the best rotation angle with low computational complexity. Leakage factor is introduced for adaptation...
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