Paper
8 February 2015 Feature matching method study for uncorrected fish-eye lens image
Author Affiliations +
Proceedings Volume 9406, Intelligent Robots and Computer Vision XXXII: Algorithms and Techniques; 94060C (2015) https://doi.org/10.1117/12.2083009
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States
Abstract
Because of the further from the center of image the lower resolution and the severe non-linear distortion are the characteristics of uncorrected fish-eye lens image, the traditional feature matching method can’t achieve good performance in the applications of fish-eye lens, which correct distortion firstly and then matches the features in image. Center-symmetric Local Binary Pattern (CS-LBP) is a kind of descriptor based on grayscale information from neighborhood, which has high ability of grayscale invariance and rotation invariance. In this paper, CS-LBP will be combined with Scale Invariant Feature Transform (SIFT) to solve the problem of feature point matching on uncorrected fish-eye image. We first extract the interest points in the pair of fish-eye images by SIFT, and then describe the corresponding regions of the interest points through CS-LBP. Finally the similarity of the regions will be evaluated using the chi-square distance to get the only pair of points. For the specified interest point, the corresponding point in another image can be found out. The experimental results show that the proposed method achieves a satisfying matching performance in uncorrected fish-eye lens image. The study of this article will be useful to enhance the applications of fish-eye lens in the field of 3D reconstruction and panorama restoration.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Baofeng Zhang, Yanhui Jia, Juha Röning, and Weijia Feng "Feature matching method study for uncorrected fish-eye lens image", Proc. SPIE 9406, Intelligent Robots and Computer Vision XXXII: Algorithms and Techniques, 94060C (8 February 2015); https://doi.org/10.1117/12.2083009
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KEYWORDS
Distortion

Image processing

3D modeling

Binary data

Detection and tracking algorithms

Panoramic photography

Image resolution

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