| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-01-30 |
| タイトル |
|
|
タイトル |
A study on dynamic retinal vessel evaluation using a compact near-infrared fundus imaging system |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Retina |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Fundus |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Near-infrared |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Pulse wave |
| 資源タイプ |
|
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
| 著者 |
Kinefuchi, Masaya
Iijima, Norio
竹原, 浩成
太田, 淳
Hara, Naoto
Kamata, Yasuaki
Koopipat, Chawan
Takahashi, Masato
Tsumura, Norimichi
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
This study proposes a compact, low-cost near-infrared fundus imaging system that addresses the limitations of conventional large and expensive devices, enabling non-invasive and non-mydriatic retinal evaluation. Retinal videos were acquired using a monochrome camera, followed by motion correction based on template matching, and vessel enhancement using an isotropic wavelet transform. Time-series changes in vessel diameter, arteriovenous ratio (AVR), and pulse waveforms were extracted from time-series changes in vessel diameter. The acquired images enabled clear visualization of retinal structures, such as the optic disc and blood vessels, and the measured AVR values ranged from 0.67 to 0.88 across five healthy participants. Furthermore, the retinal pulse waveforms showed a weak correlation with the average inter-peak intervals of the fingertip photoplethysmography signals, suggesting the system can capture cardiac-induced periodicity. These preliminary findings also suggest that the system has potential for extracting physiological information. Unlike conventional large and expensive devices using visible light, the proposed system offers a less burdensome, non-invasive alternative suitable for home-based applications. In future work, we aim to increase the number of participants and conduct more clinically oriented studies to validate the system. |
| 書誌情報 |
en : Artificial Life and Robotics
巻 30,
号 4,
p. 715-724,
ページ数 10,
発行日 2025-09-06
|
| 出版者 |
|
|
出版者 |
Springer |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
1614-7456 |
| 出版者版DOI |
|
|
関連タイプ |
isReplacedBy |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1007/s10015-025-01061-x |
| 出版者版URI |
|
|
関連タイプ |
isReplacedBy |
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
https://link.springer.com/article/10.1007/s10015-025-01061-x |
| 権利 |
|
|
権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
© The Author(s) 2025. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| 著者版フラグ |
|
|
出版タイプ |
NA |
