Postural assessment by videogrammetry

Non-ionizing technique for measuring postures by taking high-frequency photographs for a period of around twenty seconds with computer reconstruction making it possible to produce reproducible and reliable assessments with a reliability of 0.1 mm.

You will find more details and references in the following articles (Document provided by EtioSYSTEMs):

Posture and health, a subtle balance
Scientific foundations of videogrammetry

Post operative chronic pain