Near Infrared Imaging for Tissue Analysis

Near infrared light or NIR is not absorbed well by water or blood, which are the main components of biological tissue. For this reason, it can reach a significant depth of optical penetration, thus achieving increased illumination of internal structures. Even if there are some approaches based on near infrared light that allow the analysis of tissue near the skin, there is very little research regarding the 3D reconstruction and visualization of NIR illuminated areas. The current paper presents a review of existing work, analyses the drawbacks and advantages of different methods and proposes new approaches to improve this imaging modality.