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The lack of integrated acquisition and processing circuits in pixel coupled infrared polarization cameras restricts the development and application of polarization technology. FPGA has the ability of parallel processing, which can meet the needs of simultaneous transmission and processing of multi-channel data, with high data throughput and fast processing speed. At the same time, there are a large number and diverse types of IO ports that can be combined with different interface chips to design multiple types of interface circuits and achieve various circuit functions. Therefore, based on the FPGA core chip, this article designs peripheral acquisition, transmission, storage, and display circuits to complete the image acquisition and display of pixel coupled polarization cameras. During the circuit design process, the concept of modular design is adopted, and the schematic diagram of the module circuit is designed according to functional requirements. Based on the schematic diagram, a PCB is drawn, and the final product circuit board is produced. Based on the IP core and HLS library, the acquisition and processing software program was designed, and polarization image acquisition and polarization information calculation were completed. Finally, an experimental verification was conducted on the functionality of the circuit system using the idea of modularization first and then overall verification. Through verification, the circuit system can meet the functions of pixel coupled infrared polarization camera image acquisition, processing, and display.
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