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In this paper, we present a new technique for image inpainting using wavelets. Firstly the damaged area is roughly resorted by the fast marching inpainting method in spatial domain. Then the image is projected onto the wavelet domain, the wavelet coefficient corresponding to the damaged block is revalued based upon the known coefficient of its neighborhood in detail subband, while the wavelet approximation...
Ships officers can't look out by eyes efficiently in dense fog, and radar observing becomes only systemic and efficient aid-navigation method. This thesis analyses ships collision avoidance theory in fog according to radar plotting diagram and relative collision avoidance rules and good seamen skill custom, brings out conclusion of decision to avoid ships collision in fog, supplies reasonable support...
The contourlet transform [CT] is a new two-dimensional representation for images that can capture the intrinsic geometrical structure of pictorial information. The construction proposed in this paper is based on a nonsubsampled pyramid structure and critically sampled directional filter banks. The proposed transform impartially takes into account the redundancy and the data amounts. Our experiments...
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