An Improved RANSAC Algorithm for Simultaneous Localization and Mapping

Autor: Xiangyin Zhang, Li Ming'ai, Li Xiuzhi, Zheng Zeling, Guoliang Zhang, Jia Songmin, Jinhui Fan
Rok vydání: 2018
Předmět:
Zdroj: Journal of Physics: Conference Series. 1069:012170
ISSN: 1742-6596
1742-6588
DOI: 10.1088/1742-6596/1069/1/012170
Popis: Image feature matching is an important part of SLAM (Simultaneous Localization and Mapping algorithm). In order to improve the implementation efficiency of standard RANSAC algorithm, this paper proposed a novel improved RANSAC algorithm to deal with the mismatch in the image matching procedure. Our method deals with raw sample data and predict the inliers in the sample data according to the Euclidean distance between feature descriptors. And then we estimated the homography matrix with the selected sample. The homography matrix is used to eliminate the characteristics of mismatch. Furthermore, a binary environment dictionary is created for loop detection and the experimental results demonstrate that this method improves the speed of loading time of the dictionary and the accuracy of SLAM.
Databáze: OpenAIRE