| 講演抄録／キーワード |
| 講演名 |
2023-09-15 13:20
A 648 x 484-Pixel 4-Tap Hybrid Time-of-Flight Image Sensor with 8 and 12 Phase Demodulation for Long-Range Indoor and Outdoor Operations
○Kamel Mars・Kensuke Sakai・Yugo Nakatani・Masashi Hakamata・Keita Yasutomi・De Xing Lioe・Keiichiro Kagawa（Shizuoka Univ.）・Tomoyuki Akahori・Tomohiko Kosugi・Satoshi Aoyama（Toppan Inc.）・Shoji Kawahito（Shizuoka Univ.） |
| 抄録 |
（和） |
This paper presents a new hybrid time of flight (hToF) that combine advantages of direct time of flight (dToF) and indirect time of flight (iToF) for long range measurement under high ambient light condition. The VGA resolution hTOF sensor uses multi-taps pixel and non-overlapping multi-subframes technique to implement multiple time windows. By switching gates opening order in each depth zone, signal components are added while the residual ambient-light offset components due to the tap-to-tap gain deviation are canceled out. An indoor range of 20m and an outdoor range of 10m under 100Klx was successfully obtained while the sensor operation speed is higher than 20fps. The depth noise is 0.6% at 20m for indoor measurement and 1.4% at 10m for outdoor measurement. |
| （英） |
This paper presents a new hybrid time of flight (hToF) that combine advantages of direct time of flight (dToF) and indirect time of flight (iToF) for long range measurement under high ambient light condition. The VGA resolution hTOF sensor uses multi-taps pixel and non-overlapping multi-subframes technique to implement multiple time windows. By switching gates opening order in each depth zone, signal components are added while the residual ambient-light offset components due to the tap-to-tap gain deviation are canceled out. An indoor range of 20m and an outdoor range of 10m under 100Klx was successfully obtained while the sensor operation speed is higher than 20fps. The depth noise is 0.6% at 20m for indoor measurement and 1.4% at 10m for outdoor measurement. |
| キーワード |
（和） |
Hybrid Time-of-Flight (hToF) / CMOS image sensors / Direct ToF / Indirect ToF / Multi-tap pixel / / / |
| （英） |
Hybrid Time-of-Flight (hToF) / CMOS image sensors / Direct ToF / Indirect ToF / Multi-tap pixel / / / |
| 文献情報 |
映情学技報, vol. 47, no. 27, IST2023-39, pp. 17-20, 2023年9月. |
| 資料番号 |
IST2023-39 |
| 発行日 |
2023-09-08 (IST) |
| ISSN |
Online edition: ISSN 2424-1970 |
| PDFダウンロード |
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