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Surveillance of a 2D plane area with 3D deployed cameras.

Fu YG, Zhou J, Deng L - Sensors (Basel) (2014)

Bottom Line: As the use of camera networks has expanded, camera placement to satisfy some quality assurance parameters (such as a good coverage ratio, an acceptable resolution constraints, an acceptable cost as low as possible, etc.) has become an important problem.We model the problem under some more realistic assumptions: (1) deploy the cameras in the 3D space while the surveillance area is restricted to a 2D ground plane; (2) deploy the minimal number of cameras to get a maximum visual coverage under more constraints, such as field of view (FOV) of the cameras and the minimum resolution constraints.We can simultaneously optimize the number and the configuration of the cameras through the introduction of a regulation item in the cost function.

View Article: PubMed Central - PubMed

Affiliation: Department of Automation, Tsinghua University, Beijing 100084, China. iamdafu@gmail.com.

ABSTRACT
As the use of camera networks has expanded, camera placement to satisfy some quality assurance parameters (such as a good coverage ratio, an acceptable resolution constraints, an acceptable cost as low as possible, etc.) has become an important problem. The discrete camera deployment problem is NP-hard and many heuristic methods have been proposed to solve it, most of which make very simple assumptions. In this paper, we propose a probability inspired binary Particle Swarm Optimization (PI-BPSO) algorithm to solve a homogeneous camera network placement problem. We model the problem under some more realistic assumptions: (1) deploy the cameras in the 3D space while the surveillance area is restricted to a 2D ground plane; (2) deploy the minimal number of cameras to get a maximum visual coverage under more constraints, such as field of view (FOV) of the cameras and the minimum resolution constraints. We can simultaneously optimize the number and the configuration of the cameras through the introduction of a regulation item in the cost function. The simulation results showed the effectiveness of the proposed PI-BPSO algorithm.

No MeSH data available.


Camera and spatial resolution for the camera.
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f4-sensors-14-01988: Camera and spatial resolution for the camera.

Mentions: In this section we describe the relationship between the surveillance video resolution constraints and the camera's position. For a specific surveillance camera, the required resolution provides an upper bound on the distance between the camera and the surveillance area. Figure 4 illustrates the image process of an object S lying at distance D from the lens center, where the distance between the image and the lens center is d. There is a relationship between d, D and the lens focal length f by the Gaussian lens equation:(4)1d+1D=1f


Surveillance of a 2D plane area with 3D deployed cameras.

Fu YG, Zhou J, Deng L - Sensors (Basel) (2014)

Camera and spatial resolution for the camera.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3958228&req=5

f4-sensors-14-01988: Camera and spatial resolution for the camera.
Mentions: In this section we describe the relationship between the surveillance video resolution constraints and the camera's position. For a specific surveillance camera, the required resolution provides an upper bound on the distance between the camera and the surveillance area. Figure 4 illustrates the image process of an object S lying at distance D from the lens center, where the distance between the image and the lens center is d. There is a relationship between d, D and the lens focal length f by the Gaussian lens equation:(4)1d+1D=1f

Bottom Line: As the use of camera networks has expanded, camera placement to satisfy some quality assurance parameters (such as a good coverage ratio, an acceptable resolution constraints, an acceptable cost as low as possible, etc.) has become an important problem.We model the problem under some more realistic assumptions: (1) deploy the cameras in the 3D space while the surveillance area is restricted to a 2D ground plane; (2) deploy the minimal number of cameras to get a maximum visual coverage under more constraints, such as field of view (FOV) of the cameras and the minimum resolution constraints.We can simultaneously optimize the number and the configuration of the cameras through the introduction of a regulation item in the cost function.

View Article: PubMed Central - PubMed

Affiliation: Department of Automation, Tsinghua University, Beijing 100084, China. iamdafu@gmail.com.

ABSTRACT
As the use of camera networks has expanded, camera placement to satisfy some quality assurance parameters (such as a good coverage ratio, an acceptable resolution constraints, an acceptable cost as low as possible, etc.) has become an important problem. The discrete camera deployment problem is NP-hard and many heuristic methods have been proposed to solve it, most of which make very simple assumptions. In this paper, we propose a probability inspired binary Particle Swarm Optimization (PI-BPSO) algorithm to solve a homogeneous camera network placement problem. We model the problem under some more realistic assumptions: (1) deploy the cameras in the 3D space while the surveillance area is restricted to a 2D ground plane; (2) deploy the minimal number of cameras to get a maximum visual coverage under more constraints, such as field of view (FOV) of the cameras and the minimum resolution constraints. We can simultaneously optimize the number and the configuration of the cameras through the introduction of a regulation item in the cost function. The simulation results showed the effectiveness of the proposed PI-BPSO algorithm.

No MeSH data available.