117 search results - page 20 / 24 » Quaternion wavelets for image analysis and processing |
FGR
2008
IEEE
14 years 2 months ago
2008
IEEE
Many facial image analysis methods rely on learningbased techniques such as Adaboost or SVMs to project classifiers based on the selection of local image filters (e.g., Haar and...
ICIP
2006
IEEE
2006
IEEE
Fusion of Visible and Infrared Images using Empirical Mode Decomposition to Improve Face Recognition
14 years 9 months ago
In this effort, we propose a new image fusion technique, utilizing Empirical Mode Decomposition (EMD), for improved face recognition. EMD is a non-parametric datadriven analysis t...
MMSEC
2006
ACM
14 years 1 months ago
2006
ACM
We present an efficient JPEG2000-based image authentication scheme, which is robust to JPEG compression and other allowed signal processing operations. Positive wavelet-based wate...
CORR
2010
Springer
13 years 7 months ago
2010
Springer
Image data are often composed of two or more geometrically distinct constituents; in galaxy catalogs, for instance, one sees a mixture of pointlike structures (galaxy supercluster...
VISUALIZATION
2003
IEEE
14 years 24 days ago
2003
IEEE
This paper introduces a method for converting an image or volume sampled on a regular grid into a space-efficient irregular point hierarchy. The conversion process retains the ori...