Results 271 to 280 of about 1,031,547 (327)

Linear camera calibration

Proceedings 1992 IEEE International Conference on Robotics and Automation, 2003
A method for calibrating linear cameras is described. It is shown that the more classical 2-D camera calibration techniques are necessary but not sufficient for solving the linear-camera calibration problem. A model for linear cameras is proposed, and a two-step procedure is presented for estimating its parameters. A camera-centered coordinate frame is
Horaud, Radu   +2 more
openaire   +1 more source

A new development in camera calibration calibrating a pair of mobile cameras

Proceedings. 1985 IEEE International Conference on Robotics and Automation, 1987
A new method of camera calibration is proposed for active visual sensing for use in three-dimensional (3D) scene analy sis. The method permits calibration of a mobile camera as a function of the position and orientation of the camera. The algorithm for identification of the calibration matrices is divided into two steps: first, calibration for a fixed ...
Izaguirre, Alberto   +2 more
openaire   +2 more sources

Multichannel camera calibration

SPIE Proceedings, 2013
For the latest computer vision applications, it becomes more and more popular to take advantage of multichannel cameras (RGB cameras, etc.) to obtain not only gray values but also color information of pixels. The currently most common approach for multichannel camera calibration is the straightforward application of methods developed for calibration
Wei Li 0052, Julie Klein 0001
openaire   +2 more sources

Multimode camera calibration

2016 IEEE International Conference on Image Processing (ICIP), 2016
Camera calibration denotes the task of estimating the projective mapping between 3D world and the camera image plane. Most of the modern cameras have multiple image and video acquisition modes, which differ in image resolution, field of view or aspect ratio.
Andrey Bushnevskiy   +2 more
openaire   +1 more source

Underwater Camera Calibration

2000
This article deals with optical laws that must be considered when using underwater cameras. Both theoretical and experimental point of views are described, and it is shown that relationships between air and water calibration can be found.
Jean-Marc Lavest   +2 more
openaire   +2 more sources

Calibrating a mobile camera

Image and Vision Computing, 1990
The problem of determining the intrinsic and extrinsic parameters of a mobile camera is addressed. An optimal solution is presented which consists of the following steps: first, the camera is calibrated in several working positions, and for each position the corresponding transformation matrix is computed using a method developed by Faugeras and ...
Pierre Puget, Thomas Skordas
openaire   +2 more sources

On the sensitivity of camera calibration

Image and Vision Computing, 1993
Abstract The orientation position errors of an object's coordinate frame are determined when the offset of image centre and lens distortion are not included in the calibration process. The orientation and position errors are [( u 0 ) 2 + ( v 0 ) 2 ] 0.5 / f and [( u 2 0 + v 2 0 ) T 2 z + ( u 2 0 T 2 z + v 2 0 T y 2 )] 0.5
openaire   +1 more source

Camera calibration with genetic algorithms

Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No.01CH37164), 2001
We present a novel approach based on genetic algorithms for performing camera calibration. Contrary to the classical nonlinear photogrammetric approach, the proposed technique can correctly find the near-optimal solution without the need of initial guesses (with only very loose parameter bounds) and with a minimum number of control points (7 points ...
Qiang Ji, Yongmian Zhang
openaire   +3 more sources

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