3 results about "Stationary motion" patented technology

To enable the motion of an action body including at least one round of resting motion to be detected with good accuracy.SOLUTION: A motion detection device according to the present disclosure comprises: a Lissajous waveform acquisition unit which detects the motion of an action body including at least one round of resting motion, and which extracts an in-phase component and an orthogonal phase component from a reflected wave having been reflected from the action body after hitting it and acquires a Lissajous waveform based on the extracted in-phase component and orthogonal phase component; and an offset correction unit which acquires a first estimate distance between the center of the Lissajous waveform and the origin of an IO orthogonal coordinate system in an I axis direction and a second estimate distance between the center of the Lissajous waveform and the origin of an IO orthogonal coordinate system in a Q axis direction, and which corrects an offset of the Lissajous waveform on the basis of the acquired first and second estimate distances.SELECTED DRAWING: Figure 2

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.

The present invention relates to a self-elevating vessel in horizontal or stationary motion comprising: - Maneuvering and navigation means, - At least one floating upper section comprising a cell (1) and optionally at least one inflatable float (2), - At least one submerged propulsion and lifting section comprising at least one steerable propulsion means (4) and at least one steerable lifting surface in the horizontal and vertical planes (5), - At least one profiled vertical mechanical linkage means (3) between said floating upper section and said submerged propulsion and lifting section, - Means for controlling the altitude and inclination of said floating upper section relative to the water surface, in order to control in real time the position and stability of said vessel as a function of waves and wind; - Means for raising the floating upper section. Figure to be published: Figure 1