Mr. Jiamin Xia Profile

Jiamin Xia

at State Key Lab of Modern Optical Instrumentation

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Proceedings Article | 18 December 2019 Paper

A blue-white light imaging method for enhancing the capillaries in mucous tissues in vivo

Jiamin Xia, Huan Wang, Bo Yuan, Liqiang Wang

Proceedings Volume 11338, 113382X (2019) https://doi.org/10.1117/12.2547825

KEYWORDS: Blood vessels, Capillaries, Endoscopes, Tissues, Image processing, Endoscopy, Light sources, In vivo imaging, Tumors, Bladder

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Traditional endoscopes can only display common images of diseased tissues and difficultly detect early canceration in the digestive tract. With the continuous development of endoscopic technology, Fuji Intelligent Chromo Endoscopy (FICE) is widely used as a kind of simulated staining endoscopy technology. Compared to common images, FICE enhances the contrast of the image and can show the fine structure of the digestive tract mucosa more clearly. Because the white light illuminates the object, FICE is hard to observe capillaries in the superficial layers of the mucosa. In this paper, a bluewhite light imaging method is proposed, which combine a mixed light of a narrow-band blue light and a white light to illuminate the object with FICE technology to enhance the capillaries and maintain the images with certain brightness and background characteristics. Through the adjustment of the luminous intensity of blue light and white light, the optimal light intensity ratio range are determined by two evaluation indicators: the image’s pixel value difference and the blood vessel quantity difference. The results show that the deficiency of FICE technology can be compensated when the image’s pixel value difference is below 0.25 and the blood vessel quantity difference is below 0.1.

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