Citation: | ZHAO Yiheng, ZHOU Zhifeng. Location and mapping of lidar and vision sensor fusion[J]. Journal of Shanghai University of Engineering Science, 2022, 36(4): 392-397. doi: 10.12299/jsues.22-0121 |
Location and mapping is one of the key technologies for autonomous driving. With limitations of lidar sensors or vision sensors, the advantages of different sensors can be brought into play through multi-sensor fusion and the accuracy and robustness of location and mapping can be improved. The Harris algorithm was optimized for corner extraction, the key frame was used to optimize the feature point matching algorithm, and then the nonlinear least square method was used for back-end optimization. The location and mapping experiments were carried out on the test platform to verify the algorithm, and the positioning error was analyzed with the EVO tool. The result shows that the error of the proposed back-end optimization algorithm is 13% less than that of a single sensor.
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