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This paper presents an improved segmentation method for overlapped cell image. The method first implements multi-scale edge detection to the cell image, and distance transform is applied to get the pixel location, then the edge detection result and distance transform result are fused for watershed segmentation, and finally region merging is implemented to remove over-segmentation in the image. Experimental...
This paper presents an all-digital 4-bit delta-sigma (ΔΣ) modulator for envelope elimination and restoration (EER)-based polar transmitters. A fast feedback approach is devised by combining the digital truncator with path gains to reduce the propagation delay of feedback loops in modulators. The CMOS standard cell-based design could hence be utilized to implement the proposed modulator at a sampling...
This paper presents a method for restoration of blurred image of insulator based on aerial images. After the blurred image being preprocessed, the original blurred image will be restored by Lucy-Richardson, Least squares and Wiener filter respectively. Via experimental results comparison, an improved Wiener filter method is proposed. Firstly, Laplacian is applied to strengthen the edge information...
This paper presents an improved watershed segmentation method based on multi-scale edge detection which is applied to cell image segmentation. First, advantage of using morphology for the edge detection is discussed, secondly, multi-scale edge detection method is constructed by the weighted combination of morphological operations. After using the multi-scale edge detection method, result is taken...
Reaction systems far from thermodynamic equilibrium can form a fascinating wealth of spatio-temporal pattern. Noise is usually thought to spoil order. In our numerical simulation, the reaction diffusion system disturbed by environmental noise can constitute a stable well-ordered spatio-temporal pattern, chemical single spiral waves in two dimensions spatial domain. It is counterintuitive that noise...
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