5 results about "Limb segment" patented technology

The application discloses an intelligent jumping test analysis method and system based on computer vision and multi-modal data fusion, relates to the technical field of human motion analysis, and comprises the following steps: individual modeling is performed on a subject before testing, individualized limb segment parameters, visual quality baseline and dynamic characteristic benchmark are obtained, multi-view visual image streams and inertial measurement data are collected in formal testing, after three-dimensional reconstruction and inertial calculation, the jumping phase boundary is determined based on the individual dynamic characteristic benchmark, and three-dimensional joint trajectory is output, kinematic parameters and ground reaction force are calculated, the phase boundary is iteratively corrected through dynamic reverse checking closed loop, and the jumping ability evaluation result is output. Through the synergistic effect of individual modeling driven full-process self-adaptation, phase perception multi-modal fusion and dynamic reverse checking closed loop, the precision and robustness of the jumping test analysis are improved, and the applicability to subjects with different body types and motion abilities is enhanced.

This application provides a real-time feedback interactive guidance method and system for martial arts, relating to the field of sports training technology. The key technical points are: acquiring real-time motion data and support status data of the user during exercise; determining the user's body tilting torque and the corrective torque generated by specific limb segments based on this data; and determining whether the movement of a specific limb segment is a physiological compensatory movement or a technical error based on the direction and amplitude relationship between the two. The real-time feedback interactive guidance method and system for martial arts provided by this application has the advantages of effectively distinguishing between physiological compensatory movements and technical errors, avoiding misjudgment and negative intervention of physiological compensation, thereby improving the safety, effectiveness, and user experience of training.

A robotic device for limb rehabilitation includes a base with supports, an adjustable stand, a guiding rail, and a carriage carrying a limb holding assembly having cradles for a middle limb segment and an extreme limb segment. The carriage is driven along the guiding rail, and the limb holding assembly is configured to move the supported limb segments while maintaining natural anatomical motion. The device includes a control unit, sensors for determining positions of device elements, and an emergency stop system. The configuration allows movement of the limb in multiple planes, including translation of the middle limb segment along a longitudinal axis and angular movement of the extreme limb segment relative to the middle limb segment. The device is compact, mobile, and configurable for use in seated or supine positions to provide personalized rehabilitation.

The application relates to a three-dimensional human body motion capture method and device, which comprises the following steps: multi-view synchronous shooting and inter-frame timestamp alignment are performed on a target human body to obtain a synchronous image frame group, a joint point detection is performed on a human body region in the synchronous image frame group to obtain two-dimensional joint point coordinates, multi-view triangulation is performed on the two-dimensional joint point coordinates based on camera equipment calibration parameters to obtain three-dimensional joint point coordinates, a limb segment connection relationship is established based on the three-dimensional joint point coordinates and a human body skeleton topological structure to obtain a limb segment connection graph, a rotation angle of each limb segment in the limb segment connection graph is solved to obtain limb segment posture data, and the limb segment posture data is time-sequentially arranged according to the acquisition time of the synchronous image frame group to obtain three-dimensional motion data, so that the technical problem of how to improve the accuracy of three-dimensional joint point reconstruction and the robustness of a limb segment connection relationship under the condition that the multi-view two-dimensional joint point detection result is uncertain is solved.

An integrated tourniquet garment device is provided. The device is comprised of one or more garments with embedded tourniquet mechanisms disposed at critical anatomical pressure points along the upper and lower limbs. The garments comprise either two-piece or one-piece configurations, including but not limited to tactical uniforms or wetsuit structures. The tourniquet mechanisms comprise a tensioning assembly such as a nylon web band, a double-D clasp, and an externally accessible pull tab configured for circumferential compression of limb segments. The mechanisms are inlaid within seam structures or enclosed pockets at locations including but not limited to the elbows, armpits, upper thighs, and knees, with additional optional placement at the forearms, calves, or ankles. The pull tab allows manual actuation, with the tourniquet tension maintained via the double-D clasp in a locked configuration.