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This paper presents an enhanced robust phase correlation (ERPC) method for sub-pixel disparity estimation together with a package of refinement techniques for DEM generation. The multi-scale ERPC algorithm can cope with very large disparity measurement on the one hand and improve sub-pixel accuracy by entirely avoiding the ill-posed problem of 2D phase unwrapping on the other. Recognizing the inherent...
To obtain depth-from-stereo imagery, it is traditionally required that the baseline separation between images (or the base-to-height ratio) be very large in order to ensure the largest image disparity range for effective measurement. Typically, a B/H ratio in the range of 0.6-1 is preferred. As a consequence, most existing stereo-matching algorithms are designed to measure disparities reliably with...
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