GelFinger: A Novel Visual-Tactile Sensor With Multi-Angle Tactile Image Stitching. - Zhonglin Lin; Jiaquan Zhuang; Yufeng Li 005; Xianyu Wu; Shan Luo 001; Daniel Fernandes Gomes; Feng Huang 007; Zheng Yang (IEEE Robotics Autom. Lett., 2023)