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Journal of Applied Remote Sensing

Adaptive compression of remote sensing stereo image pairs
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Paper Abstract

According to the data characteristics of remote sensing stereo image pairs, a novel adaptive compression algorithm based on the combination of feature-based image matching (FBM), area-based image matching (ABM), and region-based disparity estimation is proposed. First, the Scale Invariant Feature Transform (SIFT) and the Sobel operator are carried out for texture classification. Second, an improved ABM is used in the flat area, while the disparity estimation is used in the alpine area. The radiation compensation is applied to further improve the performance. Finally, the residual image and the reference image are compressed by JPEG2000 independently. The new algorithm provides a reasonable prediction in different areas according to the image textures, which improves the precision of the sensed image. The experimental results show that the PSNR of the proposed algorithm can obtain up to about 3dB's gain compared with the traditional algorithm at low or medium bitrates, and the DTM and subjective quality is also obviously enhanced.

Paper Details

Date Published: 1 September 2010
PDF: 13 pages
J. Appl. Rem. Sens. 4(1) 041777 doi: 10.1117/1.3495716
Published in: Journal of Applied Remote Sensing Volume 4, Issue 1
Show Author Affiliations
Yunsong Li, Xidian Univ. (China)
Ruomei Yan, Xidian Univ. (China)
Chengke Wu, Xidian Univ. (China)
Keyan Wang, Xidian Univ. (China)
Shizhong Li, Harbin Institute of Technology (China)
Yu Wang, Xi'an Research Institute of Surveying and Mapping (China)

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