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Book ChapterDOI

Face Detection and Recognition under Heterogeneous Database Based on Fusion of Catadioptric and PTZ Vision Sensors

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TLDR
The vision system proposed here is composed of a catadioptric sensor for full range monitoring and a Pan Tilt Zoom camera together forming an innovative sensor, able to detect and track any moving objects at a higher zoom level.
Abstract
Large field of view with high resolution has always been sought-after for Mobile Robotic Authentication. So the vision system proposed here is composed of a catadioptric sensor for full range monitoring and a Pan Tilt Zoom (PTZ) camera together forming an innovative sensor, able to detect and track any moving objects at a higher zoom level. In our application, the catadioptric sensor is calibrated and used to detect and track Regions Of Interest (ROIs) within its 360 degree Field Of View (FOV), especially face regions. Using a joint calibration strategy, the PTZ camera parameters are automatically adjusted by the system in order to detect and track the face ROI within a higher resolution and project the same in facespace for recognition via Eigenface algorithm. The whole development has been partially validated by application for the Face recognition using our own database.

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Citations
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Control of a PTZ camera in a hybrid vision system

TL;DR: In this paper, a hybrid stereo-vision system is proposed to steer a PTZ camera in the direction of a detected object visible from another fixed camera equipped with a fisheye lens.
Proceedings ArticleDOI

Biometrie authentication platform-based multisensor fusion

TL;DR: The system proposed in this paper is an innovative biometrie authentication platform for access control applications based face recognition based on the modified Eigenface algorithm and is able to detect and track moving objects with a high zoom level.
References
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Journal ArticleDOI

A Decision-Theoretic Generalization of On-Line Learning and an Application to Boosting

TL;DR: The model studied can be interpreted as a broad, abstract extension of the well-studied on-line prediction model to a general decision-theoretic setting, and it is shown that the multiplicative weight-update Littlestone?Warmuth rule can be adapted to this model, yielding bounds that are slightly weaker in some cases, but applicable to a considerably more general class of learning problems.
Journal ArticleDOI

Eigenfaces for recognition

TL;DR: A near-real-time computer system that can locate and track a subject's head, and then recognize the person by comparing characteristics of the face to those of known individuals, and that is easy to implement using a neural network architecture.
Journal ArticleDOI

A method for the solution of certain non – linear problems in least squares

TL;DR: In this article, the problem of least square problems with non-linear normal equations is solved by an extension of the standard method which insures improvement of the initial solution, which can also be considered an extension to Newton's method.
Journal ArticleDOI

A Theory of Single-Viewpoint Catadioptric Image Formation

TL;DR: This paper derives the complete class of single-lens single-mirror catadioptric sensors that have a single viewpoint, and describes all of the solutions in detail, including the degenerate ones, with reference to many of the catadi optric systems that have been proposed in the literature.
Book ChapterDOI

A Unifying Theory for Central Panoramic Systems and Practical Applications

TL;DR: This paper provides a unifying theory for all central catadioptric systems and shows that all of them are isomorphic to projective mappings from the sphere to a plane with a projection center on the perpendicular to the plane.
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