Non-contact imaging of venous compliance in humans using an RGB camera

作者：Nakano Kazuya^*; Satoh Ryota; Hoshi Akira; Matsuda Ryohei; Suzuki Hiroyuki; Nishidate Izumi

来源：Optical Review, 2015, 22(2): 335-341.

DOI：10.1007/s10043-015-0041-5

• Venous compliance
• Skin hemodynamics
• RGB image
• Monte Carlo simulation
• Upper-arm occlusion
• Non-contact measurement

We propose a technique for non-contact imaging of venous compliance that uses the red, green, and blue (RGB) camera. Any change in blood concentration is estimated from an RGB image of the skin, and a regression formula is calculated from that change. Venous compliance is obtained from a differential form of the regression formula. In vivo experiments with human subjects confirmed that the proposed method does differentiate the venous compliances among individuals. In addition, the image of venous compliance is obtained by performing the above procedures for each pixel. Thus, we can measure venous compliance without physical contact with sensors and, from the resulting images, observe the spatial distribution of venous compliance, which correlates with the distribution of veins.

• 出版日期2015-4