| Paper Abstract and Keywords |
| Presentation |
2022-06-29 13:30
600 MHz operation of charge-domain time-compressive computational CMOS image sensor
Thoriq Ibrahim, Pham Ngoc Anh, Keita Yasutomi, Shoji Kawahito (Shizuoka Univ.), Hajime Nagahara (Osaka Univ.), Keiichiro Kagawa (Shizuoka Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this work, we improved the operation speed of a charge-domain time-compressive ultra-high-speed computational CMOS image sensor from 303MHz in the previous work to 607MHz. This sensor uses multi-tap lateral electric field charge modulators (LEFM) that have four storage diodes as a subpixel, and 2x2 subpixels constitute a macropixel. This structure provides time-compressive sensing by applying 16 different coded-exposures to the 16 taps. Along with the capability of achieving high temporal resolution determined only by the intra-pixel charge transfer rate, this indirect time of flight (ToF) can realize pseudo-direct ToF range imaging, by simply adding small-area shutter memory and the controller circuit. Temporal compressive sensing is performed in the charge domain. To demonstrate the benefit of faster operation speed, ToF range imaging was conducted under the condition of multipath interference by placing a weak diffuser 0.65 m in front of an objective plane. It was confirmed that the two reflections, which were merged at 303 MHz, were separated at 607 MHz. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CMOS image sensor / temporal compressive sensing / lateral electric field charge modulator / ToF range imaging / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 46, no. 19, IST2022-26, pp. 5-8, June 2022. |
| Paper # |
IST2022-26 |
| Date of Issue |
2022-06-22 (IST) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IST |
| Conference Date |
2022-06-29 - 2022-06-29 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
High performance image sensing and its applications |
| Paper Information |
| Registration To |
IST |
| Conference Code |
2022-06-IST |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
600 MHz operation of charge-domain time-compressive computational CMOS image sensor |
| Sub Title (in English) |
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| Keyword(1) |
CMOS image sensor |
| Keyword(2) |
temporal compressive sensing |
| Keyword(3) |
lateral electric field charge modulator |
| Keyword(4) |
ToF range imaging |
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| 1st Author's Name |
Thoriq Ibrahim |
| 1st Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
| 2nd Author's Name |
Pham Ngoc Anh |
| 2nd Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
| 3rd Author's Name |
Keita Yasutomi |
| 3rd Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
| 4th Author's Name |
Shoji Kawahito |
| 4th Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
| 5th Author's Name |
Hajime Nagahara |
| 5th Author's Affiliation |
Osaka University (Osaka Univ.) |
| 6th Author's Name |
Keiichiro Kagawa |
| 6th Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2022-06-29 13:30:00 |
| Presentation Time |
30 minutes |
| Registration for |
IST |
| Paper # |
IST2022-26 |
| Volume (vol) |
vol.46 |
| Number (no) |
no.19 |
| Page |
pp.5-8 |
| #Pages |
4 |
| Date of Issue |
2022-06-22 (IST) |