Figure 4 (IMAGE) Chinese Society for Optical Engineering Caption Precision navigation of saBOT. (a) Navigation along a rectangular trajectory. (b) Navigation along a complex channel. Credit Hongbao Xin Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.