Matching low-cost camera and vector HD map is proven to be a practical and effective way of estimating the location and orientation of intelligent vehicles. However, map-based approach is viable only when the landmark observation is adequate and precise. In some areas with sparse and noisy observation, or even non-existent map matching features, the localization results may be unstable. In this paper, we introduce a novel algorithm by fusing visual odometry and vector HD map in a tightly-coupled optimization framework to tackle these problems. Our algorithm exploits the observation of visual feature points and vector HD map landmarks in the sliding window manner and optimize their residuals in a tightly-coupled approach. In this way, the system is more robust against the noisy HD map landmark observations. In addition, our method is able to accurately estimate vehicle pose even when landmarks are sparse. Experiments under two challenging scenarios with noisy and sparse landmark observations show that our method can achieve the Mean Absolute Error (MAE) at 0.1473m and 0.2496m respectively.


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    Title :

    High Precision Vehicle Localization based on Tightly-coupled Visual Odometry and Vector HD Map


    Contributors:
    Wen, Tuopu (author) / Xiao, Zhongyang (author) / Wijaya, Benny (author) / Jiang, Kun (author) / Yang, Mengmeng (author) / Yang, Diange (author)


    Publication date :

    2020-10-19


    Size :

    4136919 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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