| Paper Abstract and Keywords |
| Presentation |
2020-07-01 14:30
Adaptive exposure-time control based on image entropy for multiple-exposure-time image sensor
Kurumi Kataoka, Yusuke Kameda, Takayuki Hamamoto (TUS) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
We propose an adaptive exposure time control method for image sensors that can control exposure time for each pixel in order to reconstruct an HDR image while suppressing blown-out highlights and blocked-up shadows according to the brightness and contrast of the scene. First, the proposed method finds the exposure time that maximizes the entropy of the entire image because an image with high entropy contains more details of the subjects. In order to estimate the exposure time suitable for the light and dark areas in the scene, the proposed method divides the image into blocks and estimates the exposure time that maximizes entropy for each block. Simulation experiments show the effectiveness of the proposed method. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Multiple exposure time imaging / Exposure time control / Image entropy / / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 44, no. 14, IST2020-36, pp. 13-18, July 2020. |
| Paper # |
IST2020-36 |
| Date of Issue |
2020-06-24 (IST) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
IST |
| Conference Date |
2020-07-01 - 2020-07-01 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Online |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IST |
| Conference Code |
2020-07-IST |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Adaptive exposure-time control based on image entropy for multiple-exposure-time image sensor |
| Sub Title (in English) |
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| Keyword(1) |
Multiple exposure time imaging |
| Keyword(2) |
Exposure time control |
| Keyword(3) |
Image entropy |
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| 1st Author's Name |
Kurumi Kataoka |
| 1st Author's Affiliation |
Tokyo University of Science (TUS) |
| 2nd Author's Name |
Yusuke Kameda |
| 2nd Author's Affiliation |
Tokyo University of Science (TUS) |
| 3rd Author's Name |
Takayuki Hamamoto |
| 3rd Author's Affiliation |
Tokyo University of Science (TUS) |
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| Speaker |
Author-1 |
| Date Time |
2020-07-01 14:30:00 |
| Presentation Time |
30 minutes |
| Registration for |
IST |
| Paper # |
IST2020-36 |
| Volume (vol) |
vol.44 |
| Number (no) |
no.14 |
| Page |
pp.13-18 |
| #Pages |
6 |
| Date of Issue |
2020-06-24 (IST) |