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Journal ArticleDOI

A flexible new technique for camera calibration

ZhenQiu Zhang
- 01 Nov 2000 - 
- Vol. 22, Iss: 11, pp 1330-1334
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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.

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Citations
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Proceedings ArticleDOI

A real-time system for full body interaction with virtual worlds

TL;DR: The ability to reconstruct a full-body model of the actors and any additional props or elements opens the way for very natural interaction techniques using the entire body and real elements manipulated by the user, whose avatar is immersed in a virtual world.
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Self calibration of multiple LIDARs and cameras on autonomous vehicles

TL;DR: The idea proposed in this paper is to use a ball in motion in front of a set of uncalibrated sensors allowing them to detect its center along the successive positions to generate a point cloud per sensor, which, by using segmentation and fitting techniques, allows the calculation of the rigid body transformation among all pairs of sensors.
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Self-calibration of a General Radially Symmetric Distortion Model

TL;DR: In this paper, the distortion function is modeled as a varying focal length, which is a function of the distance to the distortion center, which can be discretized, acting as a general model, or represented with e.g. a polynomial expression.
Journal ArticleDOI

Modeling and correction of multipath interference in time of flight cameras

TL;DR: An iterative optimization algorithm is proposed that obtains model parameters that best reproduce ToF measurements, recovering the depth of the scene without distortion and accurately corrects the multipath distortion, obtaining depth maps that are very close to ground truth data.
Proceedings ArticleDOI

Deltille Grids for Geometric Camera Calibration

TL;DR: It is empirically demonstrate that deltille grids produce the highest precision calibration of the possible tilings of Euclidean plane and posit that they should be the new standard for high-precision calibration.
References
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Book

Matrix computations

Gene H. Golub
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

Roger Y. Tsai
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.