A New Method of High Temporal Resolution Remote Sensing Imaging: Moving Target Detection with Bionics Compound Eye

Moving target detection has always been a significant interest in temporal image analysis field since it rose up to the present. It has widespread application prospect in dealing the emergency event, detecting moving object in big square, and rescuing in natural disaster. Based on the common single lens camera imaging, for the restraint of the photographable screen and the expression of plane image, we have to change the actual spatial information from three-dimension to two-dimension, and meanwhile we need the excellent handling ability to protect image high frequency detail. When we detect moving target on computer, we have to transform the two-dimensional information to the three dimensional attribute to reappear the actual target. Such “3-2-3” dimensional conversion has large computation, low real time and bad precision, so it hinders the development of moving target detection. Insect ‘s compound eye system has the unique superiority in detecting moving target. It can detect moving goal with little information by distinguishing outline characteristic of object. And it does not have the visual dimension transformation question. The traditional visible light and infrared target detection systems mostly use the existing imaging sensors (for example camera and so on) to gain the image, and then use computer signal processing method to achieve recognition and localization for target. The precision of system has a positive correlation with the computation payload. The precision is higher and the need of the computation load is larger. However, the existing processor cannot completely satisfy the demand of the system for the time request. Therefore, many researchers want to develop new methods for high temporal resolution remote sensing imaging while they continue to research the original processing mode. Moving target detection, with less computation, is an important development direction in future. In this aspect, some insects, just like dragonfly and honeybee with compound eye, have provided good example for us. Because insect’s compound eye has the characteristics of small volume, light weight and large viewing field, it has the unique superiority in the moving object detection and track. According to the research, the honeybee’s reaction time to the object which appears suddenly only needs 0.01s, but the human eye actually needs 0.05s. Dynamic target detection ability of dragonfly reaches 100%, and capture ability reaches 99%. It is definite to establish one kind of new movement object detection system by simulating this kind of