Robot vision
A realistic camera model for computer graphics
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Range estimation from focus using a non-frontal imaging camera
International Journal of Computer Vision
Telecentric Optics for Focus Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Flexible New Technique for Camera Calibration
IEEE Transactions on Pattern Analysis and Machine Intelligence
Computer Vision: A Modern Approach
Computer Vision: A Modern Approach
Autocalibration from Planar Scenes
ECCV '98 Proceedings of the 5th European Conference on Computer Vision-Volume I - Volume I
ICPR '00 Proceedings of the International Conference on Pattern Recognition - Volume 1
Non-frontal imaging camera
Journal of Biomedical Imaging
Perspective and non-perspective camera models in underwater imaging --- overview and error analysis
Proceedings of the 15th international conference on Theoretical Foundations of Computer Vision: outdoor and large-scale real-world scene analysis
Hi-index | 0.00 |
This paper has been prompted by observations of some anomalies in the performance of the standard imaging models (pin-hole, thin-lens and Gaussian thick-lens), in the context of composing omnifocus images and estimating depth maps from a sequence of images. A closer examination of the models revealed that they assume a position of the aperture that conflicts with the designs of many available lenses. We have shown in this paper that the imaging geometry and photometric properties of an image are significantly influenced by the position of the aperture. This is confirmed by the discrepancies between observed mappings and those predicted by the models. We have therefore concluded that the current imaging models do not adequately represent practical imaging systems. We have proposed a pupil-centric model of image formation, which overcomes these deficiencies and have given the associated mappings. The impact of this model on some common imaging scenarios is described, along with experimental verification of the better performance of the model on three real lenses.