High-speed imaging using CMOS image sensor with quasi pixel-wise exposure

T. Sonoda, Hajime Nagahara, K. Endo, Y. Sugiyama, R. Taniguchi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Several recent studies in compressive video sensing have realized scene capture beyond the fundamental trade-off limit between spatial resolution and temporal resolution using random space-time sampling. However, most of these studies showed results for higher frame rate video that were produced by simulation experiments or using an optically simulated random sampling camera, because there are currently no commercially available image sensors with random exposure or sampling capabilities. We fabricated a prototype complementary metal oxide semiconductor (CMOS) image sensor with quasi pixel-wise exposure timing that can realize nonuniform space-time sampling. The prototype sensor can reset exposures independently by columns and fix these amount of exposure by rows for each 8x8 pixel block. This CMOS sensor is not fully controllable via the pixels, and has line-dependent controls, but it offers flexibility when compared with regular CMOS or charge-coupled device sensors with global or rolling shutters. We propose a method to realize pseudo-random sampling for high-speed video acquisition that uses the flexibility of the CMOS sensor. We reconstruct the high-speed video sequence from the images produced by pseudo-random sampling using an over-complete dictionary.

本文言語英語
ホスト出版物のタイトルSelected Papers from the 31st International Congress on High-Speed Imaging and Photonics
編集者Takeharu Goji Etoh, Hiroyuki Shiraga, Takeharu Goji Etoh
出版社SPIE
ISBN(電子版)9781510611009
DOI
出版ステータス出版済み - 1 1 2017
イベント31st International Congress on High-Speed Imaging and Photonics - Osaka, 日本
継続期間: 11 6 201611 10 2016

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
10328
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

その他

その他31st International Congress on High-Speed Imaging and Photonics
Country日本
CityOsaka
Period11/6/1611/10/16

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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