한빛사논문
- 조회468
Minsung Kim1,2,3†, Sehui Chang4†, Minsu Kim1,2†, Ji-Eun Yeo4, MinSeok Kim4, Gil Ju Lee5*,Dae-Hyeong Kim1,2,6*, Young Min Song4,7*
1School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.
2Center for Nanoparticle Research, Institute for Basic Science(IBS), Seoul 08826, Republic of Korea.
3Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA.
4School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
5Department of Electronics Engineering, Pusan National University, Busan 46241, Republic of Korea.
6Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea.
7AI Graduate School, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
*Correspondingauthors: Gil Ju Lee, Dae-Hyeong Kim, Young Min Song
†These authors contributed equally to this work.
Abstract
With the rise of mobile robotics, including self-driving automobiles and drones, developing artificial vision for high-contrast and high-acuity imaging in vertically uneven illumination conditions has become an important goal. In such situations, balancing uneven illumination, improving image contrast for facile object detection, and achieving high visual acuity in the main visual fields are key requirements. Meanwhile, in nature, cuttlefish (genus Sepia) have evolved an eye optimized for vertically uneven illumination conditions, which consists of a W-shaped pupil, a single spherical lens, and a curved retina with a high-density photoreceptor arrangement and polarized light sensitivity. Here, inspired by the cuttlefish eye, we report an artificial vision system consisting of a W-shaped pupil, a single ball lens, a surface-integrated flexible polarizer, and a cylindrical silicon photodiode array with a locally densified pixel arrangement. The W-shaped pupil integrated on the ball lens balances vertically uneven illumination, and the cylindrical silicon photodiode array integrated with the flexible polarizer enables high-contrast and high-acuity imaging.
논문정보
- Research article
- 2023년 02월 (BRIC 등록일 2023-05-08)
- 국내(교신)+국외 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
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