Subcutaneous vein network plays important roles to maintain microcirculation that is related to some diagnostic aspects. Despite developments of optical imaging technologies, still the di±culties about deep skin vascular imaging have been continued. On the other hand, since hemoglobin concentration of human blood has key role in the veins imaging by optical manner, the used wavelength in vascular imaging, must be chosen considering absorption of hemoglobin. In this research, we constructed a near infrared (NIR) light source because of lower absorption of hemoglobin in this optical region. To obtain vascular image, reflectance geometry was used. Next, from recorded images, vascular network analysis, such as calculation of width of vascular of interest and complexity of selected region were implemented. By comparing with other modalities, we observed that proposed imaging system has great advantages including nonionized radiation, moderate penetration depth of 0.5–3mm and diameter of 1mm, cost-effective and algorithmic simplicity for analysis.

文章提出一种胶片注释方法, 利用OLED器件将胶片相机曝光时刻的注释信息(包括飞机、相机以及环境信息等)显示出来, 并通过物象共轭光学系统将注释信息成像在胶片上。工程应用表明, 采用该注释方法设计的注释器件使得胶片图像有了注释信息, 为胶片图像的后续处理与分析提供了必要的分析数据, 提高了图像处理和分析的效率, 并且有利于胶片图像的判读、分类和管理。