MVA
2002
13 years 12 months ago
2002
This paper proposes to use zooming function of digital cameras for robust character recognition and to control focal length for improving the performance even in dim light conditi...
CVIU
2004
14 years 4 days ago
2004
There have been relatively little works to shed light on the effects of errors in the intrinsic parameters on motion estimation and scene reconstruction. Given that the estimation...
IJCV
2006
14 years 9 days ago
2006
In order to reconstruct 3-D shape from two uncalibrated views, one needs to resolve two problems: (i) the computed focal lengths can be imaginary; (ii) the computation fails for fi...
ICRA
1995
IEEE
14 years 3 months ago
1995
IEEE
—Three dimensional vision applications, such as robot vision, require modeling of the relationship between the two-dimensional images and the three-dimensional world. Camera cali...
ECCV
2000
Springer
14 years 3 months ago
2000
Springer
Abstract. In this paper, we show that it is possible to calibrate a camera using just a flat, textureless Lambertian surface and constant illumination. This is done using the effec...
CVPR
2007
IEEE
14 years 4 months ago
2007
IEEE
This paper presents minimal solutions for the geometric parameters of a camera rotating about its optical centre. In particular we present new 2 and 3 point solutions for the homo...
CAIP
1999
Springer
14 years 4 months ago
1999
Springer
A technique for a zoom lens camera is presented that enable to update continuously camera intrinsic parameters while zooming. This is based on the fact that the spatial angle subte...
ICCV
2003
IEEE
14 years 5 months ago
2003
IEEE
Active object tracking, for example, in surveillance tasks, becomes more and more important these days. Besides the tracking algorithms themselves methodologies have to be develop...
ICIAR
2004
Springer
14 years 5 months ago
2004
Springer
We present a simple calibration method for computing the extrinsic parameters (pose) and intrinsic parameters (focal length and principal point) of a camera by imaging a pattern of...
AVSS
2007
IEEE
14 years 6 months ago
2007
IEEE
A calibration algorithm of two cameras using observations of a moving person is presented. Similar methods have been proposed for self-calibration with a single camera, but intern...