IMPROVING RANSAC FEATURE MATCHING BASED ON GEOMETRIC RELATION

DT-RANSAC: A Delaunay Triangulation Based Scheme for Improved RANSAC Feature Matching

Geometric-Feature-Based Spectral Graph Matching in Pharyngeal Surface Registration

Fusion between an endoscopic movie and a CT can aid specifying the tumor target volume for radiotherapy. That requires a deformable pharyngeal surface registration between a 3D endoscope reconstruction and a CT segmentation. In this paper, we propose to use local geometric features for deriving a set of initial correspondences between two surfaces, with which an association graph can be constru...

Feature-Based Deformable Image Registration with RANSAC Based Search Correspondence

The paper presents an algorithm for deformable image registration based on point features extracted from input images using the Harris corner detector. The correspondence between the points extracted from the different images is established using RANdom SAmple Consensus (RANSAC) method with the affine and perspective global transformation used to model the deformations. The initial corresponden...

An Improved RANSAC homography Algorithm for Feature Based Image Mosaic

In this paper, we proposed a new feature based image mosaic algorithm. The improved RANSAC homography algorithm based on the modified media flow filter, to detect wrong matches for improving the stability of the normal RANSAC homography algorithm. The method improved the local registration between neighboring images. Experiments and Statistical Analysis show that our mosaic method is robust. Ke...

An Efficient Preconditioner and a Modified RANSAC for Fast and Robust Feature Matching

Standard RANSAC does not perform very well for contaminated sets, when there is a majority of outliers. We present a method that overcomes this problem by transforming the problem into a 2D position vector space, where an ordinary cluster algorithm can be used to find a set of putative inliers. This set can then easily be handled by a modified version of RANSAC that draws samples from this set ...