Vein display device can significantly increase the success rate of intravenous injection. However, traditional vein display devices only contain near-infrared image information, which inevitably loses skin color information. In this article, a binocular microlens was fabricated by micro-fabrication technology. Then, a smart binocular microlens imaging system is set up. By this system, the near-infrared image with venous distribution and visible light image with actual skin color can be obtained simultaneously. In addition, an improved image fusing algorithm is proposed. The image fusing result shows that the venous details can be clearly shown and the background color of the hand also can be well preserved. Therefore, the proposed scheme can provide more real vein information. As the smart structure of the binocular microlens, the dual-bands microlens imaging system has the potential for miniaturization and could integrate with intelligent glasses for assisting intravenous injection.

静脉显示装置可以显着提高静脉注射的成功率。然而，传统的静脉显示设备仅包含近红外图像信息，这不可避免地会丢失皮肤颜色信息。在本文中，通过微加工技术制造了双目微透镜。然后，建立了一个智能的双目微透镜成像系统。通过该系统，可以同时获得具有静脉分布的近红外图像和具有实际肤色的可见光图像。另外，提出了一种改进的图像融合算法。图像融合结果表明，可以清楚地显示出静脉细节，并且可以很好地保留手的背景色。因此，提出的方案可以提供更多的真实静脉信息。作为双目微透镜的智能结构，