发明名称 Stereo-based visual odometry method and system
摘要 A method for estimating pose from a sequence of images, which includes the steps of detecting at least three feature points in both the left image and right image of a first pair of stereo images at a first point in time; matching the at least three feature points in the left image to the at least three feature points in the right image to obtain at least three two-dimensional feature correspondences; calculating the three-dimensional coordinates of the at least three two-dimensional feature correspondences to obtain at least three three-dimensional reference feature points; tracking the at least three feature points in one of the left image and right image of a second pair of stereo images at a second point in time different from the first point in time to obtain at least three two-dimensional reference feature points; and calculating a pose based on the at least three three-dimensional reference feature points and its corresponding two-dimensional reference feature points in the stereo images. The pose is found by minimizing projection residuals of a set of three-dimensional reference feature points in an image plane.
申请公布号 US7925049(B2) 申请公布日期 2011.04.12
申请号 US20070833498 申请日期 2007.08.03
申请人 SRI INTERNATIONAL 发明人 ZHU ZHIWEI;OSKIPER TARAGAY;NARODITSKY OLEG;SAMARASEKERA SUPUN;SAWHNEY HARPREET SINGH;KUMAR RAKESH
分类号 G06F9/00 主分类号 G06F9/00
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