https://scholars.lib.ntu.edu.tw/handle/123456789/581019
標題: | Depth camera using high-transmittance off-axis dual electro-optical irises | 作者: | Chen H.-H. Lai Y.-X. Lee W.-C. JUI-CHE TSAI |
關鍵字: | Liquid crystals; Stereo image processing; Driving voltages; Easy fabrication; Electro-optical; Fabrication process; High transmittance; Liquid crystal shutter; Polymer dispersed liquid crystals; Reliable performance; Cameras | 公開日期: | 2019 | 卷: | 11 | 期: | 5 | 來源出版物: | IEEE Photonics Journal | 摘要: | A depth camera prototype with high-transmittance off-axis dual electro-optical (DEO) irises is proposed. Our DEO irises are switchable through the polymer dispersed liquid crystal, and exhibit the advantages of low cost, easy fabrication, and higher transmittance compared to the traditional liquid crystal shutters. The transmittance of our device is near 75% when the driving voltage reaches about 30 V. The principle of depth measurement of our system is based on a pair of stereo images, which are captured through the left and right irises, respectively. The depth is calculated from the shifts of features between the two images. The DEO iris design, fabrication process, and depth camera prototype are demonstrated, and experimental results using our depth camera verify reliable performance for the depth measurement. Our DEO iris system therefore provides potential applications in depth sensing. ? 2019 Institute of Electrical and Electronics Engineers Inc.. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107021237&doi=10.1109%2fJPHOT.2019.2936318&partnerID=40&md5=962eb14a1c50447bc0e920f8f7cf2c3b https://scholars.lib.ntu.edu.tw/handle/123456789/581019 |
ISSN: | 19430655 | DOI: | 10.1109/JPHOT.2019.2936318 |
顯示於: | 電機工程學系 |
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