Design of detection and correction of dead pixels of the ammunition camera based on HLS

In order to reduce the bad points during the production, storage and operation of the image sensor, this paper analyzes the causes and inherent characteristics of the dead pixels, and proposes an improved FAST corner point detection for dead pixels correction. The algorithm can improve the accuracy of dead pixels detection by reducing the detection radius and setting dynamic judgment threshold, which can reduce the number of corner point misdetection, and improve the adaptability to continuous dead pixels and edge dead pixels. It can retain the corner point and edge features of the image while correcting the dead pixels. Vivado HLS tool is used to realize the parallel pipeline design of the algorithm, and achieve the optimal resource consumption and timing. The IP core of the dead pixels detection and correction is transplanted to the PL terminal to realize the real-time correction of the dead pixels of the missile camera.