analysistools:pointingdevice
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Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung | ||
analysistools:pointingdevice [2017/03/17 14:54] – oliver | analysistools:pointingdevice [2017/03/17 15:04] (aktuell) – [Introduction] oliver | ||
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If you are a Vicon Nexus user and you are alone with the subject you want to measure it can be handy to use the smartphone and the [[https:// | If you are a Vicon Nexus user and you are alone with the subject you want to measure it can be handy to use the smartphone and the [[https:// | ||
- | + | =====Why using a pointer | |
- | =====Why using a pointer? | + | * A marker placed on an anatomical landmark can move a lot (e.g. skin motion artefacts). Only pointing such a position in an static trial makes it clear that the defined position is valid only for this. |
* Anatomical landmarks can be obscured by fat (e.g. the Pelvis ASIS markers for overweight subjects) | * Anatomical landmarks can be obscured by fat (e.g. the Pelvis ASIS markers for overweight subjects) | ||
* Anatomical landmarks can be obscured from the cameras (e.g. some medial landmarks) or can be too close together (e.g. on the foot), which makes its tracking challenging | * Anatomical landmarks can be obscured from the cameras (e.g. some medial landmarks) or can be too close together (e.g. on the foot), which makes its tracking challenging | ||
- | In order to attach markers, the subject must expose that part of the body, which can be uncomfortable | + | * To attach markers, the subject must expose that part of the body, which can be uncomfortable |
- | If a tracking marker falls off, or is moved inadvertently, | + | |
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=====Modelling with tip positions===== | =====Modelling with tip positions===== | ||
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To define an anatomical coordinate system of a bony segment, three points have to be pointed. Typically each poining is done in a separate " | To define an anatomical coordinate system of a bony segment, three points have to be pointed. Typically each poining is done in a separate " | ||
+ | =====Eclipse entries===== | ||
Using a Vicon motion capture system, the needed information to recognize the trial, can be saved as a property in the so called " | Using a Vicon motion capture system, the needed information to recognize the trial, can be saved as a property in the so called " | ||
analysistools/pointingdevice.1489758878.txt.gz · Zuletzt geändert: 2017/03/17 14:54 von oliver