| Paper Abstract and Keywords |
| Presentation |
2008-10-21 13:50
Improvement of Range Resolution in a Time-of-Flight Range Image Sensor
Tomonari Sawada, Kana Ito, Masakatsu Nakayama, Shoji Kawahito (Shizuoka Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In Time-of-Flight (TOF) range image sensors using periodical pulsed light, there is a trade-off between the maximum range and range resolution.
This paper proposes a range-shift technique for improving range resolution of the TOF range image sensor without sacrificing the measurement range.
The range-shift operation uses a TOF range imaging pixel with periodical charge draining structure and several time-shifted short pulses.
The use of the short pulse can improve the range resolution.
The range image using the range-shift technique is synthesized with several sub-frames, each acquires one of the shifted range images.
The use of the small duty-ratio pulse leads to reducing the effect of ambient light and improving the range resolution.
The range-shift technique is tested with an implemented TOF range image sensor and it is found that the range resolution is improved to 2cm using a 10ns light pulse and 7 overlapped shifted ranges for the measurement range of 0.5m to 4.0m. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Time-of-Flight / TOF / range image sensor / range-shift / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 32, no. 44, IDY2008-98, pp. 21-24, Oct. 2008. |
| Paper # |
IDY2008-98 |
| Date of Issue |
2008-10-14 (IDY, 3DIT) |
| ISSN |
Print edition: ISSN 1342-6893 |
| Download PDF |
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| Conference Information |
| Committee |
3DMT IDY |
| Conference Date |
2008-10-21 - 2008-10-21 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
NHK STRL |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IDY |
| Conference Code |
2008-10-3DIT-IDY |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Improvement of Range Resolution in a Time-of-Flight Range Image Sensor |
| Sub Title (in English) |
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| Keyword(1) |
Time-of-Flight |
| Keyword(2) |
TOF |
| Keyword(3) |
range image sensor |
| Keyword(4) |
range-shift |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Tomonari Sawada |
| 1st Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
| 2nd Author's Name |
Kana Ito |
| 2nd Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
| 3rd Author's Name |
Masakatsu Nakayama |
| 3rd Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
| 4th Author's Name |
Shoji Kawahito |
| 4th Author's Affiliation |
Shizuoka University (Shizuoka Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2008-10-21 13:50:00 |
| Presentation Time |
30 minutes |
| Registration for |
IDY |
| Paper # |
IDY2008-98, 3DIT2008-70 |
| Volume (vol) |
vol.32 |
| Number (no) |
no.44 |
| Page |
pp.21-24 |
| #Pages |
4 |
| Date of Issue |
2008-10-14 (IDY, 3DIT) |