Journal ArticleDOI
A flexible new technique for camera calibration
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TLDR
A flexible technique to easily calibrate a camera that only requires the camera to observe a planar pattern shown at a few (at least two) different orientations is proposed and advances 3D computer vision one more step from laboratory environments to real world use.Abstract:
We propose a flexible technique to easily calibrate a camera. It only requires the camera to observe a planar pattern shown at a few (at least two) different orientations. Either the camera or the planar pattern can be freely moved. The motion need not be known. Radial lens distortion is modeled. The proposed procedure consists of a closed-form solution, followed by a nonlinear refinement based on the maximum likelihood criterion. Both computer simulation and real data have been used to test the proposed technique and very good results have been obtained. Compared with classical techniques which use expensive equipment such as two or three orthogonal planes, the proposed technique is easy to use and flexible. It advances 3D computer vision one more step from laboratory environments to real world use.read more
Citations
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Journal ArticleDOI
Direct determination of geometric alignment parameters for cone-beam scanners.
TL;DR: Numerical simulations of the calibration process and reconstructions using estimated parameters are presented to validate the method and to provide evidence of the robustness of the technique.
Journal ArticleDOI
Research on multi-camera calibration and point cloud correction method based on three-dimensional calibration object
TL;DR: A global calibration method of multi-camera system that can be completed by calibrating multiple cameras at the same time and to minimize the error of calibration, a correction method is proposed.
Proceedings ArticleDOI
Self-supervised learning method for unstructured road detection using Fuzzy Support Vector Machines
Shengyan Zhou,Karl Iagnemma +1 more
TL;DR: A road detection algorithm for front-view monocular camera using road probabilistic distribution model (RPDM) and Fuzzy Support Vector Machines and online learning method that is capable of self-supervised learning and optimized learning from the inheritance of previous result is described.
Journal ArticleDOI
High-precision method of binocular camera calibration with a distortion model.
Weimin Li,Siyu Shan,Hui Liu +2 more
TL;DR: The method utilized the existing algorithm used for monocular camera calibration to obtain the initialization, which involves a camera model, including radial lens distortion and tangential distortion, and obtained the optimal lens distortion parameters and intrinsic and extrinsic parameters.
Proceedings ArticleDOI
Structure and kinematics triangulation with a rolling shutter stereo rig
Omar Ait-Aider,François Berry +1 more
TL;DR: A spatio-temporal triangulation method to be used with rolling shutter cameras where the constraining assumption of a-priori knowledge about the object geometry is removed and a full 3D motion model is considered.
References
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Journal ArticleDOI
A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses
TL;DR: In this paper, a two-stage technique for 3D camera calibration using TV cameras and lenses is described, aimed at efficient computation of camera external position and orientation relative to object reference coordinate system as well as the effective focal length, radial lens distortion, and image scanning parameters.
Book
A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses
TL;DR: A new technique for three-dimensional camera calibration for machine vision metrology using off-the-shelf TV cameras and lenses using two-stage technique has advantage in terms of accuracy, speed, and versatility over existing state of the art.
Proceedings Article
Three-dimensional computer vision: a geometric viewpoint
TL;DR: Results from constrained optimization some results from algebraic geometry differential geometry are shown.