Conic Geometry and Autocalibration from Two Images
Journal of Mathematical Imaging and Vision
Line Geometry and Camera Autocalibration
Journal of Mathematical Imaging and Vision
Cayley Transformation and Numerical Stability of Calibration Equation
International Journal of Computer Vision
Euclidean Upgrading from Segment Lengths
International Journal of Computer Vision
Exploiting loops in the graph of trifocal tensors for calibrating a network of cameras
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part II
On Camera Calibration with Linear Programming and Loop Constraint Linearization
International Journal of Computer Vision
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part VI
Hi-index | 0.00 |
This article introduces the absolute quadratic complex formed by all lines that intersect the absolute conic. If 驴 denotes the 3 脳 3 symmetric matrix representing the image of that conic under the action of a camera with projection matrix {\rm P}, it is shown that \omega\approx \overline {\rm P} \underline \Omega\overline {\rm P} ^{\rm T}, where {\rm P} is the 3 脳 6 line projection matrix associated with {\rm P}, and \underline \Omegais a 6 脳 6 symmetric matrix of rank 3 representing the absolute quadratic complex. This simple relation between a camera's intrinsic parameters, its projection matrix expressed in a projective coordinate frame, and the metric upgrade separating this frame from a metric one.as respectively captured by the matrices 驴, \overline {\rm P}, and \underline \Omega 驴 provides a new framework for autocalibration, particularly well suited to typical digital cameras with rectangular or square pixels since the skew and aspect ratio are decoupled from the other intrinsic parameters in 驴.