Invention Grant
- Patent Title: Stereo-based visual odometry method and system
- Patent Title (中): 立体视觉测距法和系统
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Application No.: US11833498Application Date: 2007-08-03
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Publication No.: US07925049B2Publication Date: 2011-04-12
- Inventor: Zhiwei Zhu , Taragay Oskiper , Oleg Naroditsky , Supun Samarasekera , Harpreet Singh Sawhney , Rakesh Kumar
- Applicant: Zhiwei Zhu , Taragay Oskiper , Oleg Naroditsky , Supun Samarasekera , Harpreet Singh Sawhney , Rakesh Kumar
- Applicant Address: US CA Menlo Park
- Assignee: SRI International
- Current Assignee: SRI International
- Current Assignee Address: US CA Menlo Park
- Agency: Lowenstein Sandler PC
- Main IPC: G06F9/00
- IPC: G06F9/00

Abstract:
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.
Public/Granted literature
- US20080144925A1 Stereo-Based Visual Odometry Method and System Public/Granted day:2008-06-19
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