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ICIP
2005
IEEE
14 years 5 months ago
Accuracy estimation of a new omnidirectional 3D vision sensor
We present a computer vision system that associates omnidirectional vision with structured light with the aim of obtaining depth information for a 360 degrees field of view.The a...
Radu Orghidan, Joaquim Salvi, El Mustapha Mouaddib
ICIP
2005
IEEE
14 years 5 months ago
Silhouette-based probabilistic 2D human motion estimation for real-time applications
This paper presents a novel technique for 2D human motion estimation using a single non calibrated camera. The user’s five crucial human features (head, hands and feet) are ext...
Pedro Correa, Jacek Czyz, Toshiyuki Umeda, Ferran ...
ICIP
2005
IEEE
14 years 5 months ago
3D reconstruction of localized objects from radiographs and based on multiresolution and sparsity
We address the reconstruction of a 3D image from a set of incomplete X-ray tomographic data. In the case where the image is composed of one or several objects lying in a uniform b...
Charles Soussen, Jérôme Idier
ICIP
2005
IEEE
14 years 5 months ago
Chromatic adaptation and white-balance problem
The problem of adjusting the color such that the output image from a digital camera, viewed under a standard condition, matches the scene observed by the photographer’s eye is c...
Keigo Hirakawa, Thomas W. Parks
ICIP
2005
IEEE
14 years 5 months ago
Two-step variance-adaptive image denoising
Abstract— In this paper, we describe a two-step varianceadaptive method for image denoising based on a statistical model of the coefficients of balanced multiwavelet transform. ...
Lahouari Ghouti, Ahmed Bouridane
ICIP
2005
IEEE
14 years 5 months ago
Towards arbitrary camera movements for image cube trajectory analysis
Image Cube Trajectory (ICT) Analysis is a new and robust method to estimate the 3D structure of a scene from a set of 2D images. For a moving camera each 3D point is represented b...
Ingo Feldmann, Peter Eisert, Peter Kauff
ICIP
2005
IEEE
14 years 5 months ago
HMM-based motion recognition system using segmented PCA
In this paper, we propose a novel technique for modelbased recognition of complex object motion trajectories using Hidden Markov Models (HMM). We build our models on Principal Com...
Faisal I. Bashir, Wei Qu, Ashfaq A. Khokhar, Dan S...
ICIP
2005
IEEE
14 years 5 months ago
Light field capturing with lensless cameras
We introduce a novel approach to capturing light field with lensless cameras. By moving the cameras back and forth, we capture a set of images. We show that it is possible to reco...
Cha Zhang, Tsuhan Chen
ICIP
2005
IEEE
14 years 5 months ago
Recognition of human activities using space dependent switched dynamical models
This paper describes a new algorithm for the recognition of human activities. These activities are modelled using banks of switched dynamical models, each of which is tailored to ...
Jacinto C. Nascimento, Mário A. T. Figueire...
ICIP
2005
IEEE
14 years 5 months ago
Image denoising using multiscale directional cosine bases
Motivated by the fact that in images, there is usually a presence of local strongly oriented harmonics, a representation which is both well-localised in frequency and orientation ...
Zhen Yao, Nasir Rajpoot