Future advanced infrared detection sensing systems primarily aim to enhance the light field dimensional characteristics, detection target distance, spatial resolution and other performance. On-chip intelligent detection requires the adoption of specialized image processing algorithms to fuse detection data into reconstructed imagery, with readout circuit on-chip integration of intelligent autonomous identification and control algorithms circuit. Mature implementation path for intelligent control functions is established in the digital domain, where digitized readout circuit digital design constitutes the foundational prerequisite for intelligence. Data exchange between pixel arrays and algorithmic processing modules is conducted through digital signals equipped with logical processing capabilities. In this paper, a digital pixel readout circuit incorporating logic processing and storage functionalities is designed and implemented, which cooperates with image processing algorithm function to realize intelligent on-chip blind element substitution, non-uniformity correction, pixel reconstruction and motion target trajectory detection.