基于LED光源的窄带成像内镜系统的设计

The Design of Narrow Band Imaging Endoscopy System Based on LED light Source

窄带成像技术(narrow band imaging,NBI)是一种光学图像增强技术,可以对人体腔道黏膜内的血管形态进行增强显示。根据人体黏膜组织与光源相互作用的物理特性,设计了一种基于LED光源的窄带成像内镜系统;其中提出了一种新的窄带光源设计方案及与之配套的图像重建方法,该内镜系统可以有效地强调黏膜表层及其下层的血管形态,突出黏膜内血管与周围组织间的对比度,提早癌检出率。

Narrow Band Imaging（ NBI） is an image-enhanced technology,it can emphasis the vascular pattern＇s display within mucosal of human body cavity.An Narrow Band imaging endoscopy system based on LED light source according was designed to the interacting physical characteristics between mucosal tissue with light source.This system includes one new design of LED light source and matched image reduction method.While imaging the checked parts using this system,it could emphasis the vascular pattern of superficial mucosal and submucosal,meanwhile,highlight the contrast between mucosal vascular and surrounding tissues.Consequently,it can increase the detection rate of early neoplasia.