Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 86 for “"3D Motion"”.
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A real-time 3D motion tracking system
… is known as gaze control. The primary goal of motion tracking is to keep an object of interest, generally known as the visual target, in the view of the observer at all time. Tracking can be driven by changes perceived from the real world. One obvious change introduced by a moving object is the …
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Extracting 3D motion from hand-drawn animated figures
Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1991.
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Markerless 3D Motion Capture of Cheetahs in the Wild
3D motion-capture is essential for research in biomechanics and biomedical engineering. It can provide insight into performance and injury prevention in sport, diagnosis of illnesses and disorders as well as help biologists to study animals and help engineers to design bio-inspired robots. …
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WildPose: Long-Range 3D Motion Tracking of Cheetahs in the Wild Using Multi-Sensor Fusion
… research, it is often desirable to estimate the 3D pose of a subject - human, animal, or otherwise. Methods for obtaining accurate 3D pose data of a subject are broad in their applications; they inform the design of bio-mimetic robots, they aid greatly in bio-mechanical research, and they are …
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Joint Center Movement Analysis and 3D Motion Modeling of Upper Arm - Comparison of Several Algorithms with the Visual 3-D Program
… geometric representation of system behavior. Motion analysis of the upper and lower extremities of the body could be beneficial in the diagnosis and therapy of numerous orthopedic and neurological ailments. Mathematical models of neuro-musculoskeletal dynamics establish a scientific basis for …
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Validation of a novel 2D motion analysis system to the gold standard in 3D motion analysis for calculation of sagittal plane kinematics
… and follow up of gait disorders. Instrumented 3D gait analysis is often financially and technically inaccessible in clinical environments. Other established methods of gait analysis include video and visual observation scores; however these techniques rely on subjective clinical expertise. The …
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Recovery of 3D articulated motion from 2D correspondences
Recovering the 3D motion of the human body is an important problem in computer vision. Applications that would benefit from 3D motion include physical therapy, computer user interfaces, and 3D animation. Unfortunately, recovering 3D position from one 2D camera is an inherently ill-posed problem. …
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Second Skin : motion capture with actuated feedback for motor learning
Second Skin aims to combine three-dimensional (3D) motion tracking with tactile feedback for the purpose of improving users' motor-learning ability. Such a system would track a user's body and limb movements as he or she performs an action, and then give the user automatic, real-time tactile …
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Biomechanical characteristics of multidirectional single-leg landing
… of the literature using three-dimensional (3D) motion analysis, indicating the importance of examining other directions that seen in sports or used clinically. The second study aims to examine within-day and between-days reliability and establish standard errors of measurement (SEM) for …
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Determining Three-Dimensional Motion and Structure of a Rigid Body Using Point and Straight Line Correspondences (Stereo, Graphics, Vector)
The problem is the determination of the 3D motion and structure of a 3D object, using central projections of 3D points and 3D straight lines over a sequence of images. Over 2 frames, the 3D motion parameters to be determined are a 3D rotation and unit translation. Object structure can be determined …
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Real-Time Head and Facial Motion Analysis for Model-Based Video Coding
… of salient facial features, an estimate of the 3D motion of the head, and the corresponding Facial Action Parameters from MPEG4-SNHC. These Facial Action Parameters represent the facial motion in the video sequence and will be used to synthesize a 3D computer graphics head model to mimic the …
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Decision-making in the primate brain : formation, location, and causal manipulation
… evidence is accumulated differentially for motion in the frontoparallel plane (i.e. 2D motion; left/right) compared to motion through depth (i.e. 3D motion; towards/away). I show that integration of 3D motion is different than 2D and likely relies on a mechanism that is distinct. In the …
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An Investigation into the Solutions for Work-related Musculoskeletal Disorders in the Hairdressing Industry.
… The effectiveness of this is validated using 3D-motion analysis based on a pre- and post-test evaluation of awkward movements. A scientific approach to 3D-motion analysis has been achieved specifically by the study of the awkward working postures of the upper extremity during hair-blow-waving …
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Development and Validation of Clinically Feasible Methods to Assess Landing Mechanics in Patients Following Anterior Cruciate Ligament Reconstruction
… program. This method was validated against a 3D motion capture system for measuring a fixed angle and for measuring sagittal plane running kinematics. Third, we found that the new video analysis method is valid relative to 3D motion capture and is repeatable between days for assessing frontal …
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Can changing running shoes immediately reduce the risk of tibial stress fractures?
… in this study. The test protocol utilized 3D motion capture, force plates, and EMG. The findings of the current study suggest that strike pattern and foot alignment rather than shoes are the determining factors in eliminating risk factors for TSF. Future works should involve fatigue studies …
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Mechanical Characteristics of Male Urethral Catheterization: Simulator and Cadaveric Donor Study
… quantitatively examine the insertion force and 3D motion. Displacement-dependent effects resembling tissue stiffness appeared to dominate the force profile over rate-dependent effects such as viscous friction. In cadaveric studies, the average prostate region force was found to be higher than …
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3D tracking via body radio reflections
… presents WiTrack, a system that tracks the 3D motion of a user from the radio signals reflected off her body. It works even if the person is occluded from the WiTrack device or in a different room. WiTrack does not require the user to carry any wireless device, yet its accuracy exceeds …
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Characterization of whip targeting kinematics in discrete and rhythmic tasks
… and rhythmic, was observed using the Qualisys 3D motion capture software. The objective was to investigate the kinematics of the whip, the kinematics of the subject's arm while controlling the whip and the differences between discrete and rhythmic tasks. The subject was able to expertly perform …
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Biomechanical determinants of injury risk and performance during change of direction : implications for screening and intervention
… screening tool against three-dimensional (3D) motion analysis for evaluating cutting movement quality and identifying athletes who display high peak knee abduction moments (KAM); and 3) to understand the biomechanical effects of a COD technique modification intervention, with the aim of …
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