题目/Title：Vision-based tactile sensor using depth from defocus for artificial finger in hand prosthesis

作者/Author：
                        Hanjun Jiang,Xiyang Zhu,Wenao Xie,Feng Guo,Chun Zhang,Zhihua Wang

期刊/Journal：Electronics Letters

年份/Issue Date：2016Sept.

卷（期）及页码/Volume（No.）&pages：Vol.52, No.20, pp. 1665-1667

摘要/Abstract：
A vision-based tactile sensor has been implemented to build an artificial fingers capable of grasping for the hand prosthesis. The tactile sensor hardware is composed of an elastomer sensing part with one layer of markers and an image sensor. By employing the depth from defocus technique, three-dimensional contact force distribution can be reconstructed from the 2D images of only one layer of markers. The proposed hardware and algorithm have been validated through experiments.