Design of a Portable Microcirculation Photography System and Image Analysis

• Main Authors: Chih-Chieh Wu, 吳至傑
• Other Authors: Kang-Ping Lin
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/97v5c2

碩士 === 中原大學 === 電機工程研究所 === 91 === Abstract A new portable microcirculation photography system is proposed for optically imaging micro vessels under skin. In this system, an objective lens and a LED light source will be used to replace a microscope and lamp in traditional apparatus. Furthermore, two circular polarizers (CPLs), which be set at proper angle in the system, can block the rough skin surface scattered light. The two CPLs are benefit to capture clearly microcirculation images. Also, in this research, we apply several image processing methods such as motion estimation to calculate blood flow velocity from images captured by this system. In this paper, a new portable microcirculation photography system is proposed to capture the micro vessels images in a convenient way. There are many important biological information in these images. To make this system more powerful and owning the ability to apply to clinical diagnosis, we conclude some suggestions. The system resolution can be improved by using higher resolution DVs or objective lens. The brighter LED source applied to this system the better image quality can be obtained. An autofocus system will be necessary to hold on the steady focal plane where the vessels lay. Further, we should find out the real trajectory of red blood cells’ flowing path and inspect more points on it to build up a reasonable approximate Gaussian model that may contribute many important biological information for clinical application such as early diagnosis of cardiac disease and diabetes and make the system more practical.