Oscar Divorra Escoda,Gianluca Monaci,Rosa M Figueras I Ventura et al. Oscar Divorra Escoda et al.

In recent years, works on geometric multidimensional signal representations have established a close relation with signal expansions on redundant dictionaries. For this purpose, matching pursuits (MP) have shown to be an interesting tool. R...

Shahriar Negahdaripour,Hicham Sekkati,Hamed Pirsiavash Shahriar Negahdaripour

Utilization of an acoustic camera for range measurements is a key advantage for 3-D shape recovery of underwater targets by opti-acoustic stereo imaging, where the associated epipolar geometry of optical and acoustic image correspondences c...

Michael Ting,Raviv Raich,Alfred O Hero rd Michael Ting

The application that motivates this paper is molecular imaging at the atomic level. When discretized at subatomic distances, the volume is inherently sparse. Noiseless measurements from an imaging technology can be modeled by convolution of...

Mircea C Ionita,Peter Corcoran,Vasile Buzuloiu Mircea C Ionita

The extension of the standard grayscale active appearance model (AAM) techniques to color images is investigated. Prior work in this field has mainly focused on RGB color models which did not demonstrate noticeable benefits over grayscale m...

Xiang Ma,Dan Schonfeld,Ashfaq A Khokhar Xiang Ma

In this paper, we propose a novel solution to an arbitrary noncausal, multidimensional hidden Markov model (HMM) for image and video classification. First, we show that the noncausal model can be solved by splitting it into multiple causal ...

Gowri Srinivasa,Matthew C Fickus,Yusong Guo et al. Gowri Srinivasa et al.

We propose a new active mask algorithm for the segmentation of fluorescence microscope images of punctate patterns. It combines the (a) flexibility offered by active-contour methods, (b) speed offered by multiresolution methods, (c) smoothi...

Yiannis Andreopoulos Yiannis Andreopoulos

In their recent paper, Alnasser and Foroosh derive a wavelet-domain (in-band) method for phase-shifting of 2-D "nonseparable" Haar transform coefficients. Their approach is parametrical to the (a priori known) image translation. In this cor...

Sylvain Boltz,Eric Debreuve,Michel Barlaud Sylvain Boltz

This paper deals with region-of-interest (ROI) tracking in video sequences. The goal is to determine in successive frames the region which best matches, in terms of a similarity measure, a ROI defined in a reference frame. Some tracking met...

Xinyu Xu,Baoxin Li Xinyu Xu

In 3-D articulated human motion tracking, the curse of dimensionality renders commonly-used particle-filter-based approaches inefficient. Also, noisy image measurements and imperfect feature extraction call for strong motion prior. We propo...

Satyanadh Gundimada,Vijayan K Asari Satyanadh Gundimada

A feature selection technique along with an information fusion procedure for improving the recognition accuracy of a visual and thermal image-based facial recognition system is presented in this paper. A novel modular kernel eigenspaces app...