133 search results - page 26 / 27 » An Image Preprocessing Algorithm for Illumination Invariant ... |
ICPR
2010
IEEE
14 years 1 months ago
2010
IEEE
In this paper we address the problem of relighting faces in presence of cast shadows and specularities. We present a solution to this problem by capturing the spatially varying Ap...
PR
2008
13 years 4 months ago
2008
The randomness of iris pattern makes it one of the most reliable biometric traits. On the other hand, the complex iris image structure and the various sources of intra-class varia...
AMFG
2007
IEEE
14 years 21 days ago
2007
IEEE
In this paper, we propose a novel appearance-based representation, called Structured Ordinal Feature (SOF). SOF is a binary string encoded by combining eight ordinal blocks in a ci...
ICPR
2006
IEEE
14 years 7 months ago
2006
IEEE
Face recognition using 3D information has been intensively investigated in recent years. The features selected from 3D facial surfaces are invariant to pose and lighting condition...
ICB
2007
Springer
14 years 15 days ago
2007
Springer
Current iris recognition systems can achieve high level of success under restricted conditions, while they still face challenges of utilizing images with heavy deformation caused b...