International Journal of Computer Vision
A buyer's guide to conic fitting
BMVC '95 Proceedings of the 6th British conference on Machine vision (Vol. 2)
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
IEEE Transactions on Pattern Analysis and Machine Intelligence
Determining the lines through four lines
Journal of Graphics Tools
Estimation of Multiple Illuminants from a Single Image of Arbitrary Known Geometry
ECCV '02 Proceedings of the 7th European Conference on Computer Vision-Part III
Multiple View Geometry in Computer Vision
Multiple View Geometry in Computer Vision
Estimation of the Size and Location of Multiple Area Light Sources
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 3 - Volume 03
Spherical Catadioptric Arrays: Construction, Multi-View Geometry, and Calibration
3DPVT '06 Proceedings of the Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06)
Reconstructing a 3D Line from a Single Catadioptric Image
3DPVT '06 Proceedings of the Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06)
A unified framework for scene illuminant estimation
Image and Vision Computing
Recovering Light Directions and Camera Poses from a Single Sphere
ECCV '08 Proceedings of the 10th European Conference on Computer Vision: Part I
IJCAI'85 Proceedings of the 9th international joint conference on Artificial intelligence - Volume 2
Camera and light calibration from reflections on a sphere
Computer Vision and Image Understanding
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This paper studies the problem of light estimation using a specular sphere Most existing work on light estimation assumes distant point light sources, while this work considers an area light source which is estimated in 3D space by reconstructing its edges An empirical analysis on existing methods for line estimation from a single view is carried out, and it is shown that line estimation for a single view of a sphere is an ill-conditioned configuration. By considering a second identical sphere, a closed form solution for single view polygonal light estimation is proposed In addition, this paper also proposes an iterative approach based on two unknown views of just a single sphere Experimental results on both synthetic and real data are presented.