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FPGA Implementation for Fast Infrared Spots Detection

This paper introduces a fast infrared spots detection algorithm designed for field-programmable gate array (FPGA) implementation. The proposed algorithm processes four pixels per clock cycle and detects infrared spots in a single pass over a frame. The implementation of the algorithm is only composed of combinatorial logic and registers. Furthermore, the execution time of the algorithm is independent of image content. For prototyping and evaluation purposes, the algorithm is implemented in an FPGA device. Demonstrated its superiority over the existing multi-pass algorithms and some other one-pass algorithms, it processes 1024u768 images smoothly at 60 fps and detects infrared sports in a 1024u768 image within 1.966ms.