Multi-segment foot
Visual3D Expert BuilderModel Unit 7 Chapter 1: Multi-segment foot Although typically the foot is treated as a single segment, this […]
Segment definition
Virtual lab rotations
Visual3D Expert BuilderModel Unit 6 Chapter 2: Virtual lab rotations One method to normalize or standardize a full-body rotation is […]
Advanced segment tracking
Chapter 1: Advanced segment trackingTracking segments during complex motions can be challenging if the gesture in question results in marker […]
Ankle markerless data
Visual3D Expert BuilderModel Unit 3 Chapter 4: Ankle markerless data Traditionally, Visual3D has been used for marker-based motion capture. However, […]
Virtual Foot
Visual3D Expert BuilderModel Unit 3 Chapter 1: Virtual Foot The ankle angle offset has a significant role in biomechanical modeling […]
Compute Model Based Data: Segment Residual
The segment residual is a very useful tool to evaluate the quality of the fit of a segment’s tracking to the markers used for it. Compute Model Based Data gives the option to obtain the segment residual for any segment included in the biomechanical model.
Segment Residual
An often overlooked fact in motion capture, is that segment position is based on the best estimation from marker locations. Of course, due to soft tissue artifacts, the fit of the segment tracking may change throughout the motion. Although, this may not be the type of data you would report to patients or subjects, it could be a valuable piece of information to evaluate the quality of your data.
Joint Landmarks
Visual3D Expert BuilderModel Unit 1 Chapter 1: Joint Landmarks Joint landmarks can be used in a variety of ways, including […]
Part III – Processing data in Visual3D
Part III: Processing data in Visual3DAs a final part to this introductory workshop, we focus on using Visual3D to process […]
Visual3D Basics Unit 6 – Chapter 4 – Joint rotations
The most fundamental relationship between the motion of two segments is the the joint rotation. This motion is described by a 3×3 matrix and is the basis for joint angles.
