Beam tracking and image steering by Texas Instruments Phase Light Modulator based on camera input for lidar and AR applications
Affiliation
James C. Wyant College of Optical Sciences, University of ArizonaIssue Date
2023-03-15
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SPIECitation
Xianyue Deng, Chin-I Tang, and Yuzuru Takashima "Beam tracking and image steering by Texas Instruments phase light modulator based on camera input for lidar and AR applications", Proc. SPIE 12435, Emerging Digital Micromirror Device Based Systems and Applications XV, 124350E (15 March 2023); https://doi.org/10.1117/12.2651414Rights
© 2023 SPIE.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Micro Electro Mechanical System (MEMS) spatial light modulators enables adaptive and fast beam and image steering. For lidar applications, Texas Instruments Phase Light Modulator (TI-PLM) is paired with real-time calculation and display of Computer Generated Holograms (CGH) by CUDA-OpenGL interoperability assisted by YOLOv4-tiny network model for object detection and recognition. The real-time object recognition, CGH calculation, and display framework replaces conventional raster scanning with camera-input based and foveated beam steering while having a beam scan rate beyond the frame rate of TI-PLM. For Augmented Reality (AR) application, the same framework is used for image steering based on gaze information of eye. With Texas Instruments Digital Micromirror Device (TI-DMD), image is steered into a part of field of view by following movement of eye. The diffractive image steering enabled by TI-DMD increases FOV while not sacrificing resolution of the image displayed. © 2023 SPIE.Note
Immediate accessISSN
0277-786XVersion
Final Published Versionae974a485f413a2113503eed53cd6c53
10.1117/12.2651414