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In this paper, a 2-D oriented wavelet transform (OWT) is introduced for efficient remote-sensing image compression. The proposed 2-D OWT can perform integrative oriented transform in arbitrary direction and achieve a significant transform coding gain. To maximize the transform coding gain, two separable 1-D transforms are implemented in the same direction for local areas with direction consistency...
There are plenty of correlations in infrared remote images that intensities of edge are as a regradually changed. As a result, infrared images usually seem to be blurry. Consequently,the correlations can be utilized to perform efficiently coding. The paper analyzed the characters of typical infrared remote-images. Based on HMM, the contextual model was founded to practice the bit plan e-coding. Within...
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