I am analyzing videos of conversational situations (persons are seated), and am now looking for a computer-based method / software to detect postures or movements from videos where no sensors have been used. I am familiar with Motion Energy Analysis, but am looking for a software where it is possible to detect the movement form (temporal dynamic structure and direction of the movement) as well as static postures.
Any kind of suggestions on movement and posture recognizing software are warmly welcome.
Thanks in advance,
Petra Nyman-Salonen
I am not really sure if this helps, but openpose will give you very good results in detecting human body poses and facial expressions.
maybe you can use it as basis for a temporal analysis
https://github.com/CMU-Perceptual-Computing-Lab/openpose
I think this software helps you
https://www.maketecheasier.com/setup-motion-detection-webcam-ubuntu/
https://raspbian-france.fr/video-surveillance-raspberry-pi-camera/
https://www.youtube.com/watch?v=AejagSlRHQU
This may also be of some use.
Ching-Hang Chen and Deva Ramanan at Carnegie-Melon have an interesting method for automatic detection. Their work is described here:
https://arxiv.org/pdf/1612.06524.pdf
Their software and some demos are available on github, here:
https://github.com/flyawaychase/3DHumanPose
Calculating posture (and then movement) from video has a lot of room for errors based on camera angle. Here's a paper that discuss the difficulties, and compares camera angles.
Sutherland, C. A., Albert, W. J., Wrigley, A. T., & Callaghan, J. P. (2007). The effect of camera viewing angle on posture assessment repeatability and cumulative spinal loading. Ergonomics, 50(6), 877-889.
I hope this helps. Best of luck.
Thank you so much John, this looks very interesting! I will look into it.
Petra
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