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» Dissecting the Image of the Absolute Conic
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AVSS
2006
IEEE
13 years 8 months ago
Dissecting the Image of the Absolute Conic
In this paper, we revisit the role of the image of the absolute conic (IAC) in recovering the camera geometry. We derive new constraints on IAC that advance our understanding of i...
Imran N. Junejo, Hassan Foroosh
ACCV
2006
Springer
13 years 8 months ago
Interpreting Sphere Images Using the Double-Contact Theorem
An occluding contour of a sphere is projected to a conic in the perspective image, and such a conic is called a sphere image. Recently, it has been discovered that each sphere imag...
Xianghua Ying, Hongbin Zha
3DIM
2003
IEEE
13 years 8 months ago
Calibration of a Zooming Camera using the Normalized Image of the Absolute Conic
We present a novel technique for calibrating a zooming camera based on the invariance properties of the Normalized Image of the Absolute Conic (NIAC). First, we show that the came...
Jean-Yves Guillemaut, Alberto S. Aguado, John Illi...
CVPR
1997
IEEE
13 years 7 months ago
Autocalibration and the absolute quadric
We describe a new method for camera autocalibration and scaled Euclidean structure and motion, from three or more views taken by a moving camera with fixed but unknown intrinsic ...
Bill Triggs
ECCV
2002
Springer
14 years 4 months ago
Geometric Properties of Central Catadioptric Line Images
In central catadioptric systems, lines in a scene are projected to conic curves in the image. This work studies the geometry of the central catadioptric projection of lines and its...
Helder Araújo, João P. Barreto