Marine and Environment
Comprehensive SensingLed by Bing Ouyang, Ph.D.
Bing Ouyang, Ph.D., joined HBOI/FAU as a Research Associate in 2009. He is one of the 40 recipients of prestigious 2013 Air Force Young Investigator Research Award. He has been PI and co-PI on several other grants and projects. His main research interests include novel compact underwater serial imaging system; underwater imaging lidar noise reduction and image enhancement and computer vision for underwater imaging systems. His 2011 SPIE paper was first reported application of compressive sensing in underwater laser imaging systems. He has a provisional patent application “MEMS Microdisplay Optical Imaging and Sensor System in Scattering Underwater Environment” filed jointly with Fraser Dalgleish, Ph.D., and Anni Vuorenkoski Ph.D. He is also applying for a patent on Compressive Sensing based imaging Lidar. Prior to joining HBOI, Ouyang was with Texas Instruments (TI) between 1996 and 2009. In 2002, he joined TI’s Digital Light Processing (DLP) group as an ASIC algorithm engineer, developing front end algorithm form DLP video processor. He was peer-elected to TI’s Member Group of Technical Staff. He has three patents on video source detection and semiconductor equipment data acquisition system (US Patent 7,825,990, 7,733,424 and 8,112,400) and four pending applications.
This REU project is focused on improving the design of the optical front-end of a laser diode array-based sensor. This sensor, coupled with compressive sensing, has the potential to serve as an extremely efficient imaging sensor in underwater environments, including those with low visibility.
A prototype of this design has been developed, comprising 64 individually controllable laser emitters. To extend the imaging range of the system, a coupled plano-concave cylindrical lens was placed in front of the existing bulk optics, focused at the near-field laser array, and adjusted experimentally to achieve the desired beam profile. While the optical subsystem has performed well in early experimental trials, it would be beneficial to create an optical model that encompasses the overall optical design, enabling simulation and optimization. Zemax OpticStudio will be used for this purpose. The REU participant will study the new optical front-end and translate this design into a Zemax model. The model will be integrated with an existing Zemax model of the bulk optics. Using this model, the participant will investigate the optimum optical design of the imaging system, and the model results will be validated experimentally against the prototype system. The project will provide a meaningful experience for the participant, while contributing to Bing Ouyang’s ongoing work in this area.