Mr. Yuanlin Zhao Profile

Yuanlin Zhao

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Proceedings Article | 12 March 2020 Paper

Image stitching technology based on bionic compound eye system

Yuanlin Zhao, Xiangyang Peng, Shengli Chang, Wuming Wu, Zheng Wang

Proceedings Volume 11434, 1143404 (2020) https://doi.org/10.1117/12.2540455

KEYWORDS: Eye, Biomimetics, Image fusion, Sensors, Modulation transfer functions, Lens design, Image processing, Feature extraction, Optical design, Computer simulations

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In order to solve the problem that the large field of view and high resolution of the traditional single aperture optical system are difficult to realize at the same time, a curved compound eye system including a three-ring lens group is designed. Firstly, the relationship between the field of view of the sub-eye system and the total field of view is studied, and the arrangement of the sub-eyes is obtained. Then, according to the object image conjugate relationship between the incident window and the exit window, we obtained a geometric model of sub-eye stitching. The compound eye system designed by this method has a full field of view of 79.5°. The angular resolution of the central system is 0.01°, the edge system is 0.017°. The system is simulated and verified by the optical design software ZEMAX. Finally, the feature points of each sub-eye image are extracted by SIFT(Scale Invariant Feature Transform) algorithm. The extracted feature points are accurately matched by RANSAC(Random Sample Consensus) algorithm, Then we use a weighted average algorithm to splicing the image of the sub-eye. This research further promotes the application of bionic compound eye imaging systems.

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