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ISVC
2009
Springer
14 years 7 hour ago
Two Step Variational Method for Subpixel Optical Flow Computation
We develop an algorithm for the super-resolution optical flow computation by combining variational super-resolution and the variational optical flow computation. Our method firs...
Yoshihiko Mochizuki, Yusuke Kameda, Atsushi Imiya,...
ICIAR
2009
Springer
14 years 14 hour ago
An Example-Based Two-Step Face Hallucination Method through Coefficient Learning
Face hallucination is to reconstruct a high-resolution face image from a low-resolution one based on a set of high- and low-resolution training image pairs. This paper proposes an ...
Xiang Ma, Junping Zhang, Chun Qi
MCETECH
2009
Springer
14 years 3 hour ago
TwoStep: An Authentication Method Combining Text and Graphical Passwords
Text-based passwords alone are subject to dictionary attacks as users tend to choose weak passwords in favor of memorability, as well as phishing attacks. Many recognition-based gr...
Paul C. van Oorschot, Tao Wan
CVPR
2007
IEEE
14 years 7 months ago
Shape from Shading Under Various Imaging Conditions
Most of the shape from shading (SFS) algorithms have been developed under the simplifying assumptions of a Lambertian surface, an orthographic projection, and a distant light sour...
Abdelrehim H. Ahmed, Aly A. Farag
ICPR
2002
IEEE
13 years 10 months ago
Graphics Recognition from Binary Images: One Step or Two Steps
Recognizing graphic objects from binary images is an important task in many real-life applications. Generally, there are two ways to do the graphics recognition: onestep methods a...
Jiqiang Song, Min Cai, Michael R. Lyu, Shijie Cai