Combining point and edge for satellite pose tracking under illumination varying
Pose tracking is a fundamental technology needs to be solved in on-orbit service. Visual pose tracking provides an inexpensive solution while it remains a large obstacle to track satellites under space illumination changing condition. This paper combines point feature with edge feature to track a model-known satellite. It makes use of the distinctiveness of point feature and robustness of edge feature, and treats them differently through a weight-self-tune procedure according to their residuals respectively. Simulation results show that the proposed combination approach improves the tracking accuracy and holds the robustness simultaneously.