The Global Dimensionality of Face Space. - Penio S. Penev; Lawrence Sirovich (FG, 2000)

Facial feature tracking and pose estimation in video sequences by factorial coding of the low-dimensional entropy manifolds due to the partial symmetries of faces. - Evan D. Mandel; Penio S. Penev (ICASSP, 2000)

Using Vector Quantization to Build Nonlinear Factorial Models of the Low-Dimensional Independent Manifolds in Optical Imaging Data. - Penio S. Penev; Manuela Gegiu; Ehud Kaplan (ICIP, 2000)

Redundancy and Dimensionality Reduction in Sparse-Distributed Representations of Natural Objects in Terms of Their Local Features. - Penio S. Penev (NIPS, 2000)

Optimal estimation of subband speech from nonuniform non-recurrent signal-driven sparse samples. - Penio S. Penev; Liubomire G. Iordanov (ICASSP, 2001)

Characterization of and compensation for the nonstationarity of spike shapes during physiological recordings. - Penio S. Penev; Alexander Dimitrov 001; John P. Miller 001 (Neurocomputing, 2001)

Learning a Synchronous MAP for Improved Face Recognition. - Penio S. Penev (CVPR Workshops, 2004)

LightSphere: Fast Lighting Compensation for Matching a 2D Image to a 3D Model. - A. Peter Blicher; Sébastien Roy 001; Penio S. Penev (ICPR (2), 2004)