Lee Junsik, Lee Jooho, Won Yong Hyub
Opt Express. 2021 Jan 18;29(2):729-739. doi: 10.1364/OE.414236.
In this paper, we propose a new method for image stitching using an electrowetting-based liquid prism. Several images were obtained by adjusting the voltages applied to four sidewalls of the liquid prism, and a panoramic image was achieved through an image stitching algorithm. The relationship between the tilting angle of the liquid prism and the normal vector of the liquid-liquid interface was presented. Novel fabrication method has been proposed to improve the performance of the liquid prism, including the addition of a new structure to prevent oil isolation, plastic chamber material, plastic laser cutting, and oil selection. The fabricated liquid prism has a size of 5 × 5 × 8 mm, a maximum beam steering angle of ±10.5 °, a response time of 19.1 ms, and a resolution of 14.25 lp/mm. The required number of images according to the overlapping area was presented through the simulation, and the image stitching using two or three images was demonstrated.
在本文中，我们提出了一种使用基于电润湿的液体棱镜进行图像拼接的新方法。通过调整施加到液体棱镜四个侧壁上的电压获得了几幅图像，并通过图像拼接算法实现了全景图像。给出了液体棱镜的倾斜角与液 - 液界面法向量之间的关系。已经提出了新颖的制造方法来提高液体棱镜的性能，包括添加防止油隔离的新结构、塑料腔室材料、塑料激光切割和油的选择。制造的液体棱镜尺寸为5×5×8毫米，最大光束转向角为±10.5°，响应时间为19.1毫秒，分辨率为14.25线对/毫米。通过模拟给出了根据重叠区域所需的图像数量，并展示了使用两幅或三幅图像的图像拼接。
