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

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• 作者：Kazuya Nakano ; Ryota Satoh ; Akira Hoshi ; Ryohei Matsuda ; Hiroyuki Suzuki…
• 关键词：Venous compliance ; Skin hemodynamics ; RGB image ; Monte Carlo simulation ; Upper ; arm occlusion ; Non ; contact measurement
• 刊名：Optical Review
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：22
• 期：2
• 页码：335-341
• 全文大小：1,127 KB
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• 作者单位：Kazuya Nakano (1)
  Ryota Satoh (2)
  Akira Hoshi (2)
  Ryohei Matsuda (2)
  Hiroyuki Suzuki (3)
  Izumi Nishidate (2)
  
  1. Nippon Sport Science University, 1221-1 Kamoshidacho, Aobaku, Yokohama, Kanagawa, 227-0033, Japan
  2. Graduate School of Bio-Application and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
  3. Imaging Science and Engineering Laboratory, Tokyo Institute of Technology, Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Electromagnetism, Optics and Lasers
  
• 出版者：The Optical Society of Japan, co-published with Springer-Verlag GmbH
• ISSN：1349-9432

文摘

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.