FisheyeSuperPoint: Keypoint Detection and Description Network for Fisheye Images

27 Feb 2021  ·  Anna Konrad, Ciarán Eising, Ganesh Sistu, John McDonald, Rudi Villing, Senthil Yogamani ·

Keypoint detection and description is a commonly used building block in computer vision systems particularly for robotics and autonomous driving. Recently CNN based approaches have surpassed classical methods in a number of perception tasks... However, the majority of techniques to date have focused on standard cameras with little consideration given to fisheye cameras which are commonly used in autonomous driving. In this paper, we propose a novel training and evaluation pipeline for fisheye images. We make use of SuperPoint as our baseline which is a self-supervised keypoint detector and descriptor that has achieved state-of-the-art results on homography estimation. We introduce a fisheye adaptation pipeline to enable training on undistorted fisheye images. We evaluate the performance on the HPatches benchmark, and, by introducing a fisheye based evaluation methods for detection repeatability and descriptor matching correctness on the Oxford RobotCar datasets. read more

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