Research Article
Image Mosaic Based on Improved Logarithmic Polar Coordinate Transformation and Ransac Algorithm
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@INPROCEEDINGS{10.1007/978-3-030-32216-8_59, author={Dan Li and Lei Chen and Jun Tian and Dai-hong Jiang and Jin-ping Sun and Bin Ding}, title={Image Mosaic Based on Improved Logarithmic Polar Coordinate Transformation and Ransac Algorithm}, proceedings={Simulation Tools and Techniques. 11th International Conference, SIMUtools 2019, Chengdu, China, July 8--10, 2019, Proceedings}, proceedings_a={SIMUTOOLS}, year={2019}, month={10}, keywords={Image registration Logarithmic polar coordinates Mosaic Ransac algorithm NSCT transform}, doi={10.1007/978-3-030-32216-8_59} }- Dan Li
Lei Chen
Jun Tian
Dai-hong Jiang
Jin-ping Sun
Bin Ding
Year: 2019
Image Mosaic Based on Improved Logarithmic Polar Coordinate Transformation and Ransac Algorithm
SIMUTOOLS
Springer
DOI: 10.1007/978-3-030-32216-8_59
Abstract
Complex factors with the electronic noise, X-ray scattering and uneven illumination often disturb the image registration. A new algorithm was proposed in this paper. The improved phase correlation algorithm based on log polar transformation was used to calculate parameters, such as rotation, scaling and translation. Then, the Harris corner matching points were extracted in overlapping positions and purified by the improved Ransac algorithm. Finally, images were processed by NSCT transform algorithm to make the image joint seemed smooth and natural. Experiments confirmed that, the new algorithm is accurate and efficient, and has high robustness to complex environment.
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