Sensor selection and configuration in visual sensor networks

In this article, the problem of selection and configuration of visual sensors in Visual Sensor Networks (VSNs) is studied for coverage of the existing targets in the three-dimensional network area. It is assumed that visual sensors are capable of Pan-Tilt-Zoom (PTZ) ability and able to choose the covered area and desirable target through configuration of the angle of view in two horizontal and vertical dimensions and alteration of the enlargement scale. In order to solve the problem of selection and configuration, a method is presented according to Binary Integer Programming (BIP). It ensures to find the best solution. In addition, it has less calculation complexity compared with other optimization methods. Applying the proposed solution, two problems of k-coverage and full angle coverage have been assessed using two models of point target model and circular target model. The perceived results properly confirm the efficiency of the proposed method in terms of execution speed and decreasing the computation complexity.