Estimation of stereo and motion parameters using a variational principle
Image and Vision Computing - Special issue: papers from the second Alvey Vision Conference
Tracking and data association
IEEE Transactions on Pattern Analysis and Machine Intelligence
Self calibration of motion and stereo vision for mobile robots
Proceedings of the 4th international symposium on Robotics Research
A theory of self-calibration of a moving camera
International Journal of Computer Vision
Qualitative surface shape from deformation of image curves
International Journal of Computer Vision
Qualitative surface shape from deformation of image curves
International Journal of Computer Vision
Recursive affine structure and motion from image sequences
ECCV '94 Proceedings of the third European conference on Computer vision (vol. 1)
Self-calibration from multiple views with a rotating camera
ECCV '94 Proceedings of the third European conference on Computer vision (vol. 1)
Euclidean structure from uncalibrated images
BMVC 94 Proceedings of the conference on British machine vision (vol. 2)
Auto-calibration—Kruppa's equations and the intrinsic parameters of a camera
BMVC 94 Proceedings of the conference on British machine vision (vol. 2)
Driving saccade to pursuit using image motion
International Journal of Computer Vision
Active tracking of foveated feature clusters using affine structure
International Journal of Computer Vision
What can be seen in three dimensions with an uncalibrated stereo rig
ECCV '92 Proceedings of the Second European Conference on Computer Vision
A new approach to automatic reconstruction of a 3-D world using active stereo vision
Computer Vision and Image Understanding
Binocular Self-Alignment and Calibration from Planar Scenes
ECCV '00 Proceedings of the 6th European Conference on Computer Vision-Part II
Bundle Adjustment - A Modern Synthesis
ICCV '99 Proceedings of the International Workshop on Vision Algorithms: Theory and Practice
Automated Alignment of Robotic Pan-Tilt Camera Units Using Vision
International Journal of Computer Vision
Continuous stereo self-calibration by camera parameter tracking
IEEE Transactions on Image Processing
Comparing self-calibration methods for static cameras
EUROCAST'07 Proceedings of the 11th international conference on Computer aided systems theory
Laparoscope self-calibration for robotic assisted minimally invasive surgery
MICCAI'05 Proceedings of the 8th international conference on Medical image computing and computer-assisted intervention - Volume Part II
Automated center of radial distortion estimation, using active targets
ACCV'09 Proceedings of the 9th Asian conference on Computer Vision - Volume Part II
Hi-index | 0.14 |
This correspondence presents a new technique for calibrating a camera mounted on a controllable head/eye platform. It uses the trajectories of an arbitrary number of tracked corner features to improve the calibration parameter estimates over time, utilizing a novel variable state dimension form of recursive filter. No special visual stimuli are required and no assumptions are made about the structure of the scene, other than that it is stationary relative to the head. The algorithm runs at 4 frames per second on a single Inmos T805 transputer, and is fully integrated into a real-time active vision system. Updated calibration parameters are regularly passed to the vision modules that require them. Although the algorithm requires an initial estimate of camera focal length, results are presented from real experiments demonstrating that convergence is achieved for initial errors up to 50%.