Data Efficient Digital Micromirror Device-Based Image Edge Detection Sensor Using Space-Time Processing

This paper presents a novel optical image scene object boundary mapping sensor using combined space-time processing within the framework of a Digital Micromirror Device (DMD). Sensor operation data efficiency is generated by smart spatial scanning of the image plane combined with single-pixel basis time delay electronic processing. In effect, compressed sensing is achieved using a hybrid optical-electronic means. Experimental results for target boundary detection are demonstrated for visible light illuminated rectangular and a multi-square shaped targets. The presented remote imaging sensor is ideal for use in environments where brightly illuminated or radiating objects require shape-detection imaging within hazardous extreme environments of radiation, heat, cold, and harmful machine parts.