Deans' stroke musings: Static and dynamic calibration of an eight-camera optical system for human motion analysis

Changing stroke rehab and research worldwide now.Time is Brain! trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 523 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.

Thursday, April 16, 2020

Static and dynamic calibration of an eight-camera optical system for human motion analysis

In order for your therapist to determine exactly which muscles are working or not working something like this would be useful. I got the 'walk this way' demo from one of my PTs. Totally useless because there was no analysis of what was wrong with my gait in any detail so I could work on those individual muscles. Cause and effect analysis was missing. If I did that lousy a job in programming I would be fired in less than a month.

Static and dynamic calibration of an eight-camera optical system for human motion analysis

NARIC Accession Number: J65731. What's this?
ISSN: 0743-4863.
Author(s): Kertis, Jeffrey D.; Fritz, Jessica M.; Long, Jason T.; Harris, Gerald F..
Project Number: H133E100007.
Publication Year: 2010.
Number of Pages: 12.

Abstract:

Study evaluated an eight-camera Optitrack motion capture system by performing static, linear dynamic, and angular dynamic calibrations using marker distances associated with upper- and lower-extremity gait and wheelchair models. Data were analyzed to determine accuracy and resolution within a defined capture volume using a standard Cartesian reference system. Static accuracy ranged from 99.31 to 99.90 percent. Static resolution ranged from 0.04 to 0.63 millimeters at the 0.05 level of significance. The dynamic accuracy ranged from 94.82 to 99.77 percent, and dynamic resolution ranged from 0.09 to 0.61 millimeters at the 0.05 level of significance. These values are comparable to those reported for a standard Vicon 524 (Oxford Metrics, Oxford, England) motion analysis system. The results support application of the lower-cost Optitrack system for three-dimensional kinematic assessment of upper- and lower-extremity motion during gait, assisted ambulation, and wheelchair mobility.
Descriptor Terms: AMBULATION, BIOENGINEERING, BODY MOVEMENT, DEVICES EVALUATION, JOINTS, LIMBS, MEASUREMENTS, PERFORMANCE STANDARDS, REHABILITATION TECHNOLOGY, WHEELCHAIRS.