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Current prominent camera identification methods use wavelet-based filter to extract photo-response non-uniformity (PRNU) noise as camera fingerprint. However, these noise features in heavily textured images can not be extracted by using wavelet-based filter effectively. In this paper, we propose a new camera identification method that uses curvelet-based filter to extract noise features in heavily...
Biochip plays more and more important role in medical analysis and test. There is a need to enhance the effectiveness of biochip inspection. To detect automatically the print defects of the PET board of glycemia detection biochip, the fast Hough Transform algorithm was used for sub-image segmentation based on circle detection, and a modified method with limited-value-based image subtraction was applied...
In order to automatically detect the print defects of PET board of a kind of biochip, integrated electro-mechanical method was employed to design the experimental platform for the recognition and marker of PET board, therefore the automatic control of mechanical inspection system was realized; CCD sensor was used to get the image of PET board, and specific computer software was developed to achieve...
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