TY - JOUR ID - 100566 TI - Mismatch Elimination based on Shape Matrix for Wide-baseline Image Matching JO - Journal of Machine Vision and Image Processing JA - JMVIP LA - en SN - AU - Sedaghat, Amin AU - Mohammadi, Nazila AD - Department of Geomatics Engineering, Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran Y1 - 2020 PY - 2020 VL - 7 IS - 1 SP - 135 EP - 151 KW - Image matching KW - Feature Extraction KW - MSER KW - DAISY KW - Shape matrix DO - N2 - Wide-baseline image matching with significant viewpoint differences plays a fundamental role in many computer vision and photogrammetry applications, such as 3D reconstruction and image registration. One of the main problems of matching these images is the existence of a relatively large number of mismatches. Generally, a geometric consistency check process based on various geometrical constraints and robust estimator methods such as the epipolar line and RANSAC algorithm is used for mismatch elimination. However, conventional geometry filtering methods in wide-baseline images will fail if the number of outliers is very high. In addition, these methods have high computational complexity. In this paper, a novel mismatch elimination approach in wide-baseline images with significant viewpoint differences is presented. First, initial elliptical features are extracted using improved MSER (maximally stable extremal regions) detector in both images. Then, a distinctive DAISY descriptor is generated for each extracted feature. In the next step, the initial feature correspondence process is established using Euclidean distance between feature descriptors. Then, a novel mismatch elimination approach based on features shape matrix, named MESM (mismatch elimination based on shape matrix), is applied. Finally, the few remained blunders are removed by using a geometric constraint. The proposed image matching and mismatch elimination algorithms were successfully applied to match eight close-range image pairs with significant viewpoint differences, and the results demonstrate its capability to improve matching performance. UR - https://jmvip.sinaweb.net/article_100566.html L1 - https://jmvip.sinaweb.net/article_100566_db25210f7f1792128a05d6726d659d56.pdf ER -