Results 281 to 290 of about 359,274 (310)
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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
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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
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Proceedings of International Symposium on Computer Vision - ISCV, 2002
A close range camera calibration scheme can be divided into a static scheme and a dynamic scheme. The static scheme is used to calibrate single camera by applying bundle adjustment on multiple digitized images of a calibration block. The dynamic scheme calibrates the stereo cameras using camera parameters derived from the static calibration even after ...
C.T. Huang, O.R. Mitchell
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A close range camera calibration scheme can be divided into a static scheme and a dynamic scheme. The static scheme is used to calibrate single camera by applying bundle adjustment on multiple digitized images of a calibration block. The dynamic scheme calibrates the stereo cameras using camera parameters derived from the static calibration even after ...
C.T. Huang, O.R. Mitchell
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Multichannel camera calibration
SPIE Proceedings, 2013For 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, Julie Klein
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Photogrammetric camera calibration
Photogrammetria, 1984Abstract Section 2 (Calibration) of the document “Recommended Procedures for Calibrating Photogrammetric Cameras and Related Optical Tests” from the International Archives of Photogrammetry, Vol. XIII, Part 4, is reviewed in the light of recent practical work, and suggestions for changes are made.
Tayman, W. P., Ziemann, H.
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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
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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
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Optical Engineering, 1966
The Underwater Camera Calibrator is a precision instrument that provides a known angular array of collimator targets to be photographed by a camera under test. The images of the targets are then read and measured to yield the necessary data for the determination of focal length, location of principal point, distortion, and resolution.
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The Underwater Camera Calibrator is a precision instrument that provides a known angular array of collimator targets to be photographed by a camera under test. The images of the targets are then read and measured to yield the necessary data for the determination of focal length, location of principal point, distortion, and resolution.
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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.
J. M. Lavest, G. Rives, J. T. Lapresté
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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.
J. M. Lavest, G. Rives, J. T. Lapresté
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Empire Survey Review, 1938
AbstractAccidents will happen and the surveyor is therefore sometimes required to do the best he can with photographs taken with an uncalibrated camera which is not available for subsequent calibration. This note outlines a method by which an approximate principal distance can be obtained for high oblique air photographs from points appearing in the ...
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AbstractAccidents will happen and the surveyor is therefore sometimes required to do the best he can with photographs taken with an uncalibrated camera which is not available for subsequent calibration. This note outlines a method by which an approximate principal distance can be obtained for high oblique air photographs from points appearing in the ...
openaire +1 more source