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» Deriving Intrinsic Images from Image Sequences
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ICDAR
2009
IEEE
14 years 4 months ago
Document Image Retrieval with Local Feature Sequences
In recent years, many document image retrieval algorithms have been proposed. However, most of the current approaches either need good quality images or depend on the page layout ...
Jilin Li, Zhi-Gang Fan, Yadong Wu, Ning Le
ICCV
2001
IEEE
14 years 12 months ago
Camera Calibration and 3D Reconstruction from Single Images Using Parallelepipeds
In this paper, parallelepipeds and their use in camera calibration and 3D reconstruction processes are studied. Parallelepipeds naturally characterize rigidity constraints present...
Marta Wilczkowiak, Edmond Boyer, Peter F. Sturm
ICCV
2001
IEEE
14 years 12 months ago
Do Ambiguous Reconstructions Always Give Ambiguous Images?
In many cases self-calibration is not able to yield a unique solution for the 3D reconstruction of a scene. This is due to the occurrence of critical motion sequences. If this is ...
Marc Pollefeys, Luc J. Van Gool
MICCAI
2007
Springer
14 years 11 months ago
Variational Guidewire Tracking Using Phase Congruency
We present a novel method to track a guidewire in cardiac x-ray video. Using variational calculus, we derive differential equations that deform a spline, subject to intrinsic and e...
Gregory G. Slabaugh, Koon Kong, Gozde B. Unal, Ton...
VISUALIZATION
1997
IEEE
14 years 2 months ago
Image synthesis from a sparse set of views
We present an image synthesis methodology and a system built around it. Given a sparse set of photographs taken from unknown viewpoints, the system generates images from new, diff...
Qian Chen, Gérard G. Medioni