388 search results - page 4 / 78 » Using hidden Markov models and wavelets for face recognition |
ICIP
2000
IEEE
13 years 12 months ago
2000
IEEE
Wavelet-domain hidden Markov models (HMMs) have been recently proposed and applied to image processing, e.g., image denoising. In this paper, we develop a new HMM, called local co...
ICPR
2008
IEEE
14 years 1 months ago
2008
IEEE
Recent studies in patch-based Gaussian Mixture Model (GMM) approaches for face age estimation present promising results. We propose using a hidden Markov model (HMM) supervector t...
PR
2000
13 years 7 months ago
2000
This paper describes an active-camera real-time system for tracking, shape description, and classi"cation of the human face and mouth expressions using only a PC or equivalen...
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
We develop a hierarchical, nonparametric statistical model for wavelet representations of natural images. Extending previous work on Gaussian scale mixtures, wavelet coefficients ...
ICASSP
2008
IEEE
14 years 1 months ago
2008
IEEE
We are interested in recovering aspects of vocal tract’s geometry and dynamics from auditory and visual speech cues. We approach the problem in a statistical framework based on ...