A method for estimating deformation field of sar full-map based on multi-scale residual map regularization
A multi-scale, deformation field technology, applied in computing, scene recognition, computer parts, etc., to achieve the effect of improving matching accuracy, improving positioning accuracy, and uniform distribution
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[0055] The technical solutions of the present invention will be further described below with reference to the accompanying drawings.
[0056] like figure 1 As shown, the technical scheme adopted in the present invention includes the following key parts and technologies:
[0057] Part 1: Dense and uniformly distributed control point pairs are generated and matched with high precision.
[0058] The present invention designs a new method on the generation and matching of dense control point pairs. First, we use a large number of SIFT points as candidate control point pairs, so use the SIFT operator to extract a large number of candidate point pairs. These feature points are relatively dense and relatively evenly distributed, and these points have the characteristics of rich local features.
[0059] The SIFT-based feature point extraction can be summarized as:
[0060] (1) Construction of scale space (2) Extreme point detection (3) Key point location (4) Main direction determi...
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