20 February 2017 High-speed imaging using CMOS image sensor with quasi pixel-wise exposure
Author Affiliations +
Proceedings Volume 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics; 103280A (2017) https://doi.org/10.1117/12.2270485
Event: 31st International Congress on High-Speed Imaging and Photonics, 2016, Osaka, Japan
Abstract
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.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. Sonoda, H. Nagahara, K. Endo, Y. Sugiyama, R. Taniguchi, "High-speed imaging using CMOS image sensor with quasi pixel-wise exposure", Proc. SPIE 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics, 103280A (20 February 2017); doi: 10.1117/12.2270485; https://doi.org/10.1117/12.2270485
PROCEEDINGS
6 PAGES


SHARE
RELATED CONTENT

Frameless representation and manipulation of image data
Proceedings of SPIE (March 04 2015)
Light field video camera
Proceedings of SPIE (December 20 2001)
Real time color imaging with a CMOS sensor having stacked...
Proceedings of SPIE (February 06 2004)

Back to Top