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This term is used all the time in introductory classical physics. In that context, stationary usually means not moving in the laboratory frame. Thus, a block sitting on a table not doing much would be referred to as being stationary. If one studies relative motion, then stationary could mean not moving in whatever frame you're discussing.
A motion redirection height adaptive calibration method based on ground contact analysis
This invention relates to the technical field of robot motion and discloses a motion redirection height adaptive calibration method based on ground contact analysis. The method involves acquiring a dynamic video segment and calculating the root node height and lowest point height of the corresponding skeleton model for each frame. Based on the changing trends of the root node height and lowest point height, a multi-level height adaptive calibration strategy is formulated: for stable motion trends, sequence-level global calibration is used; for non-stationary motion trends, frame-level real-time pull-back calibration is used. The calibrated dynamic video is then subjected to artifact removal and stabilization processing to complete the adaptive calibration. The method of this invention can effectively eliminate penetration and levitation artifacts while maintaining high motion fidelity.
Owner:SHANGHAI NORMAL UNIVERSITY