A Time‐Division Position‐Sensitive Detector Image System for High‐Speed Multitarget Trajectory Tracking

Abstract High‐speed trajectory tracking with real‐time processing capability is particularly important in the fields of pilotless automobiles, guidance systems, robotics, and filmmaking. The conventional optical approach to high‐speed trajectory tracking involves charge coupled device (CCD) or complementary metal–oxide–semiconductor (CMOS) image sensors, which suffer from trade‐offs between resolution and framerates, complexity of the system, and enormous data‐analysis processes. Here, a high‐speed trajectory tracking system is designed by using a time‐division position‐sensitive detector (TD‐PSD) based on a graphene–silicon Schottky heterojunction. Benefiting from the high‐speed optoelectronic response and sub‐micrometer positional accuracy of the TD‐PSD, multitarget real‐time trajectory tracking is realized, with a maximum image output framerate of up to 62 000 frames per second. Moreover, multichannel trajectory tracking and image‐distortion correction functionalities are realized by TD‐PSD systems through frequency‐related image preprocessing, which significantly improves the capacity of real‐time information processing and image quality in complicated light environments.