A real time infrared imaging system based on DSP & FPGA

Abstract

The principle, configuration, and the special features of an infrared imaging system are presented in this paper. The work has been done in two parts. First, the nonuniformity of IRFPA is detected using a processing system based on FPGA & microcontroller. The FPGA generates system timing and performs data acquisition, while the microcontroller reads the IRFPA data from FPGA and sends them to the computer. Afterwards the infrared imaging system is implemented based on DSP & FPGA. The DSP executes high level algorithms such as two-point nonuniformity correction. The FPGA here performs two functions: the first one is reading the IRFPA video output and sending it to DSP; the second function is reading the corrected data from DSP and sending them to video encoder which converts the digital data to the analog video signal. The experimental results show that the system is suitable for the real time infrared imaging with high quality and high precision. © Springer-Verlag Berlin Heidelberg 2007.