Using the information below estimate the time required to analyse the data collected
using the two motion analysis systems when there are 10 markers on the subject and the data
is collected for 100 frames.
Cinematography system 2 seconds per marker
5 seconds to change frame
Passive marker 10 seconds to identify each marker
Motion analysis system 1 marker disappears on four occasions
(b) Are there any other time delays associated with either systems?
To estimate the time required to analyze the data collected using the two motion analysis systems, we need to consider the time it takes for each system to process the markers and frames.
Let's break it down step by step:
1. Cinematography system:
- Time per marker: 2 seconds
- Number of markers: 10
Total time to process the markers using the cinematography system: 2 seconds/marker * 10 markers = 20 seconds
2. Changing frame:
- Time to change frame: 5 seconds
- Number of frames: 100
Total time to change frames: 5 seconds/frame * 100 frames = 500 seconds
3. Passive marker identification:
- Time to identify each marker: 10 seconds
- Number of markers: 10
Total time to identify markers using passive marker system: 10 seconds/marker * 10 markers = 100 seconds
4. Motion analysis system marker disappearance:
- Number of marker disappearances: 4
- Time per marker disappearance: It is not specified in the information provided. To estimate, let's assume it takes 5 seconds per marker disappearance.
Total time for marker disappearances: 5 seconds/marker * 4 marker disappearances = 20 seconds
Therefore, the total time required to analyze the data collected would be the sum of all the above steps:
20 seconds (Cinematography system) + 500 seconds (Changing frame) + 100 seconds (Passive marker identification) + 20 seconds (Marker disappearance) = 640 seconds.
(b) Apart from the time delays mentioned above, it is not specified whether there are any other time delays associated with either system. So based on the information provided, these are the time delays we considered for analysis. If there are any other time delays not mentioned, they would need to be accounted for separately.