Space variant image processing
International Journal of Computer Vision
Efficient numerical methods in non-uniform sampling theory
Numerische Mathematik
Driving saccade to pursuit using image motion
International Journal of Computer Vision
Real-time attention for robotic vision
Real-Time Imaging - Special issue on natural and artificial real-time imaging and vision
A real-time foveated sensor with overlapping receptive fields
Real-Time Imaging - Special issue on natural and artificial real-time imaging and vision
Space-Variant Fourier Analysis: The Exponential Chirp Transform
IEEE Transactions on Pattern Analysis and Machine Intelligence
Human motion analysis: a review
Computer Vision and Image Understanding
Detecting Faces in Images: A Survey
IEEE Transactions on Pattern Analysis and Machine Intelligence
Computer Vision and Image Understanding
Color-Based Tracking of Heads and Other Mobile Objects at Video Frame Rates
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Multi-Modal Tracking of Faces for Video Communications
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Optimal servoing for active foveated vision
CVPR '96 Proceedings of the 1996 Conference on Computer Vision and Pattern Recognition (CVPR '96)
Elliptical Head Tracking Using Intensity Gradients and Color Histograms
CVPR '98 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
VS '98 Proceedings of the 1998 IEEE Workshop on Visual Surveillance
Robust Detection and Tracking of Human Faces with an Active Camera
VS '00 Proceedings of the Third IEEE International Workshop on Visual Surveillance (VS'2000)
WACV '96 Proceedings of the 3rd IEEE Workshop on Applications of Computer Vision (WACV '96)
Mean Shift Analysis and Applications
ICCV '99 Proceedings of the International Conference on Computer Vision-Volume 2 - Volume 2
Embedded foveation image coding
IEEE Transactions on Image Processing
Face segmentation using skin-color map in videophone applications
IEEE Transactions on Circuits and Systems for Video Technology
Scheduling an active camera to observe people
Proceedings of the ACM 2nd international workshop on Video surveillance & sensor networks
Surveillance camera scheduling: a virtual vision approach
Proceedings of the third ACM international workshop on Video surveillance & sensor networks
A dynamic bayesian network-based framework for visual tracking
ACIVS'05 Proceedings of the 7th international conference on Advanced Concepts for Intelligent Vision Systems
A multi-view approach to object tracking in a cluttered scene using memory
ICIC'05 Proceedings of the 2005 international conference on Advances in Intelligent Computing - Volume Part II
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We present a real-time foveation system for remote and distributed surveillance. The system performs face detection, tracking, selective encoding of the face and background, and efficient data transmission. A Java-based client-server architecture connects a radial network of camera servers to their central processing unit. Each camera server includes a detection and tracking module that signals the human presence within an observation area and provides the 2D face coordinates and its estimated scale to the video transmission module. The captured video data are then efficiently represented in log-polar coordinates, with the foveation point centered on the face, and sent to the connecting client modules for further processing. The current set-up of the system employs active cameras that track the detected person, by switching between smooth pursuit and saccadic movements, as a function of the target presence in the fovea region. High reconstruction resolution in the fovea region enables the successive application of recognition/verification modules on the transmitted video without sacrificing their performance. The system modules are well suited for implementation on the next generation of Java-based intelligent cameras.