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System and method for locating a target with a network of cameras

A camera and smart camera technology, applied in the field of tracking single or multiple targets, in the field of electronics, can solve problems such as lack of collaborative processing, damage by intruders, and no intelligent distribution

Inactive Publication Date: 2012-05-16
UNIVERSITY OF TECHNOLOGY OF TROYES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, this type of solution has the following disadvantages: cost (especially for motorized cameras); decentralized processing limited to better definition of image local processing; System failure in case of obstructions; limited to network concepts using multiple cameras to obtain multiple views of the same scene, without intelligent distributed processing and with large camera sizes, creating a risk of damage by intruders rather than allowing discrete and effective surveillance

Method used

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  • System and method for locating a target with a network of cameras
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  • System and method for locating a target with a network of cameras

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Embodiment Construction

[0041] The present invention relates to a system and method for tracking at least one object through a network of smart cameras as defined above. These smart cameras (S) have known geographic positions and each comprise data processing means (S1), image acquisition means (S2) implementing at least one algorithm (AS, AD, AF) for tracking an object or objects and communication means (S21). A network of cameras (S) makes it possible to cover at least one geographical area, called a zone (Z), where collaborative processing by the network of cameras allows efficient surveillance at low cost, especially using cameras with limited computing resources and capabilities. Communication means may be wired or wireless. Preferably, the invention will be implemented in a network of autonomous cameras (ie without the need for a higher level system) that implements the invention in a coordinated manner. The processing means is reconfigurable according to changes in the camera cluster.

[00...

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Abstract

The present invention relates to a system, a method and an intelligent camera for following at least one target (X) with at least one intelligent camera (S) comprising means (S1) for processing data implementing at least one algorithm (AS, AD, AF) for following target(s), means (S2) for acquiring images and means (S21) for communication, characterized in that a detection of at least one target (X) in the region (Z) covered, by virtue of at least one algorithm (AD) for detection at an initial instant, is followed, for each instant (t), by an iteration of at least one step of following the target (X) with at least one camera, termed an active camera, by virtue of at least one variational filtering algorithm (AF) based on a variational filter by estimation (551) of the position of the target (X) through a continuous mixture of Gaussians.

Description

technical field [0001] The present invention relates to the field of electronics, in particular to networks of image sensors such as cameras, and in particular to the field of locating and / or tracking a single object or multiple objects using networks of so-called "smart" cameras. More particularly, the present invention relates to systems and methods for locating objects over time using a network of smart cameras, ie, tracking objects. Background technique [0002] For purposes of simplification and in connection with the fact that when it is desired to obtain continuous images (video) using a video camera, it is obvious that it is also possible to obtain only still images, the image capturing device used in the present invention is hereinafter referred to as "camera ". The invention proposes a network of cameras that allows localization of objects (objects or people, as non-limiting examples). In fact, the term "camera" (or smart camera) is used in this application to in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20G06K9/00G08B13/194
CPCG06T2207/10016G08B13/19608G06T7/208G08B13/19645G06T2207/30232G06K9/00771G06T7/277G06V20/52
Inventor H·斯努西
Owner UNIVERSITY OF TECHNOLOGY OF TROYES
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