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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Patent
Multiple camera control system
Evan Hildreth,Francis Macdougall +1 more
TL;DR: In this paper, a multiple camera tracking system for interfacing with an application program running on a computer is presented, which includes two or more video cameras arranged to provide different viewpoints of a region of interest, and are operable to produce a series of video images.
Journal ArticleDOI
A convenient multicamera self-calibration for virtual environments
TL;DR: It is shown that it is possible to calibrate an immersive virtual environment with 16 cameras in less than 60 minutes reaching about 1/5 pixel reprojection error.
Proceedings ArticleDOI
Decoding, Calibration and Rectification for Lenselet-Based Plenoptic Cameras
TL;DR: This work derives a novel physically based 4D intrinsic matrix relating each recorded pixel to its corresponding ray in 3D space as part of a decoding, calibration and rectification procedure for lenselet-based plenoptic cameras appropriate for a range of computer vision applications.
Proceedings ArticleDOI
High quality depth map upsampling for 3D-TOF cameras
TL;DR: This paper describes an application framework to perform high quality upsampling on depth maps captured from a low-resolution and noisy 3D time-of-flight camera that has been coupled with a high-resolution RGB camera.
Journal ArticleDOI
Digital camera calibration methods: Considerations and comparisons
Fabio Remondino,Clive S. Fraser +1 more
TL;DR: The current approaches adopted for camera calibration in close-range photogrammetry and computer vision are overviewed, and operational aspects for self-calibration are discussed, including chromatic aberration on modelled radial distortion.
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.