Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological Tissues
Measurement of optical properties is critical for understanding light-tissue interaction, properly interpreting measurement data, and gaining better knowledge of tissue physicochemical properties. However, conventional optical measuring techniques are limited in point measurement, which partly hinde...
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| Format: | Article |
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MDPI AG
2021-05-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/5/162 |
| _version_ | 1797534372899848192 |
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| author | Zhizhong Sun Dong Hu Zhong Wang Lijuan Xie Yibin Ying |
| author_facet | Zhizhong Sun Dong Hu Zhong Wang Lijuan Xie Yibin Ying |
| author_sort | Zhizhong Sun |
| collection | DOAJ |
| description | Measurement of optical properties is critical for understanding light-tissue interaction, properly interpreting measurement data, and gaining better knowledge of tissue physicochemical properties. However, conventional optical measuring techniques are limited in point measurement, which partly hinders the applications on characterizing spatial distribution and inhomogeneity of optical properties of biological tissues. Spatial-frequency domain imaging (SFDI), as an emerging non-contact, depth-varying and wide-field optical imaging technique, is capable of measuring the optical properties in a wide field-of-view on a pixel-by-pixel basis. This review first describes the typical SFDI system and the principle for estimating optical properties using the SFDI technique. Then, the applications of SFDI in the fields of biomedicine, as well as food and agriculture, are reviewed, including burn assessment, skin tissue evaluation, tumor tissue detection, brain tissue monitoring, and quality evaluation of agro-products. Finally, a discussion on the challenges and future perspectives of SFDI for optical property estimation is presented. |
| first_indexed | 2024-03-10T11:28:44Z |
| format | Article |
| id | doaj.art-649402c1209a4a2da78b4963aa4a5419 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T11:28:44Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-649402c1209a4a2da78b4963aa4a54192023-11-21T19:26:09ZengMDPI AGPhotonics2304-67322021-05-018516210.3390/photonics8050162Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological TissuesZhizhong Sun0Dong Hu1Zhong Wang2Lijuan Xie3Yibin Ying4College of Information Engineering, Zhejiang A&F University, Hangzhou 310000, ChinaSchool of Engineering, Zhejiang A&F University, Hangzhou 310000, ChinaSchool of Engineering, Zhejiang A&F University, Hangzhou 310000, ChinaCollege of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310000, ChinaCollege of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310000, ChinaMeasurement of optical properties is critical for understanding light-tissue interaction, properly interpreting measurement data, and gaining better knowledge of tissue physicochemical properties. However, conventional optical measuring techniques are limited in point measurement, which partly hinders the applications on characterizing spatial distribution and inhomogeneity of optical properties of biological tissues. Spatial-frequency domain imaging (SFDI), as an emerging non-contact, depth-varying and wide-field optical imaging technique, is capable of measuring the optical properties in a wide field-of-view on a pixel-by-pixel basis. This review first describes the typical SFDI system and the principle for estimating optical properties using the SFDI technique. Then, the applications of SFDI in the fields of biomedicine, as well as food and agriculture, are reviewed, including burn assessment, skin tissue evaluation, tumor tissue detection, brain tissue monitoring, and quality evaluation of agro-products. Finally, a discussion on the challenges and future perspectives of SFDI for optical property estimation is presented.https://www.mdpi.com/2304-6732/8/5/162spatial-frequency domain imagingdepth-varyingwide-fieldoptical propertydisease diagnosis |
| spellingShingle | Zhizhong Sun Dong Hu Zhong Wang Lijuan Xie Yibin Ying Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological Tissues Photonics spatial-frequency domain imaging depth-varying wide-field optical property disease diagnosis |
| title | Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological Tissues |
| title_full | Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological Tissues |
| title_fullStr | Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological Tissues |
| title_full_unstemmed | Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological Tissues |
| title_short | Spatial-Frequency Domain Imaging: An Emerging Depth-Varying and Wide-Field Technique for Optical Property Measurement of Biological Tissues |
| title_sort | spatial frequency domain imaging an emerging depth varying and wide field technique for optical property measurement of biological tissues |
| topic | spatial-frequency domain imaging depth-varying wide-field optical property disease diagnosis |
| url | https://www.mdpi.com/2304-6732/8/5/162 |
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