The Portable Infrared And Visible Light Image Fusion System Based On Fpga

Infrared and visible image fusion technology make full use of the advantages and complementarities of infrared and visible imaging techniques, which has effectively improved the target detection’s spatial extent and detection probability, and now become a hot research topic now. Image fusion system which is based on image fusion technology has many advantages, such as real-time image processing, high probability of target detection, long time using, wide range of applications, and low cost. This system has become the focus on military use and civilian field. This paper is to design a FPGA-based portable real-time image fusion system.First, my paper introduces the development and advantages of uncooled infrared imaging technology, according to the infrared and visible image fusion technology characteristics, an infrared and visible light real-time image fusion system is designed mainly based on uncooled infrared imaging technology, analyzing the uncooled infrared imaging principle and non-uniformity correction method, in addition infrared image enhancement algorithm and real-time color image fusion algorithm suitable for hardware are put forward. Based on the FPGA portable infrared and visible light real-time image fusion system a scheme and a circuit have been designed. This paper introduces each module circuit of the integration system, such as the temperature control circuit, dual channel A/D acquisition circuit, signal processing circuit FPGA, D/A video synthesis circuit and power management circuits. FPGA is the signal processing core of the integration system, thus the timing management module, the infrared and visible light external synchronous sequential control module, the infrared image scale module, visible light image extraction and image fusion function module are designed. In order to reduce the power consumption many measures circuit optimization, multistage power conversion, FPGA line processing and optimization of peripheral circuit measures and so on have to be adopted. At last transform the schematic diagram into the PCB system, carry on the simulation optimization, finally complete the system debugging and experimental analysis.