Based upon the sparse array composed of cluster SAR satellites, this paper analyzes the space-time and space-frequency characteristic of the received signal in detail, and proposes an algorithm for the moving targets detection and imaging based on array signal processing and Wigner-Ville Distribution (WVD). The results of theoretical analysis and simulation show that the cluster SAR system can ...

Change detection using difference picture has been used to detect the location of moving targets and to track them. This method needs the assumption of static camera, and the global motion compensation is required in case of a moving camera. In this paper, we suggest a method for finding minimum bounding rectangles(MBRs) of moving targets in the image sequences using moving region detection, es...

A research has been carried out finalised to the definition of a methodology useful to address the task of detection and tracking of moving targets. Algorithms performing this task for real time monitoring and surveillance purposes have been developed. Due to deformations occurring in the appearance of the target in real time video sequences, a Hierarchical Neural Network (HNN) has been used fo...

Focusing light through scattering media has been a longstanding goal of biomedical optics. While wavefront shaping and optical time-reversal techniques can in principle be used to focus light across scattering media, achieving this within a scattering medium with a noninvasive and efficient reference beacon, or guide star, remains an important challenge. Here, we show optical time-reversal focu...