Week 1 Flashcards
(20 cards)
Limitations of 2 video analysis?
cant get biomechanical measurements from a 2D view point so need to measure in 3D
Benefits of 3d motion analysis?
The values are more accurate
Acceleration?
Rate of change in velocity with respect to time
Angular Displacement?
angle through which a body has been rotated about a fixed axis
Angular velocity?
Time rate of change of angular displacement
Frontal?
From the front
Sagittal?
From the side
Transverse?
From the above
Anthropometry?
the scientific study of the measurements and proportions of the human body
When is there 2as in formula what does it mean
2x gravity & height
Quantitative analysis?
placing markers on landmarks
Qualitative analysis?
judging performance from view port (in sport)
Steps in qualitative analysis?
Description
Observation
Evaluation
Instruction
Universal principles?
Low energy required
Grounded principles?
maximise acceleration path
Progressive scanning?
Records whole frame
Interlaced?
records half a frame in two fields
Nyquist limit?
Sampling rate twice the highest frequency component of the signal
Parallax error?
different outcomes depending on what were doing
Perspective error?
Object lies outside principle photographic plane