NTU researchers develop marker-less movement seize tech for physiotherapy

Researchers from the Nanyang Technological College in Singapore have developed a exact movement seize system to help docs and physiotherapists in consultations and diagnoses for sufferers requiring rehabilitation after an damage or recovering from an sickness.


Referred to as Exact Marker-less, the system is skilled with over 150 topics by way of machine studying to render 3D anatomical bone landmark areas with an accuracy of 10-15 millimetres or in regards to the width of an grownup’s finger.

It requires a setup of two to 4 cameras, a pc, and a calibration package, which processes information derived from analysing a topic’s actions. This makes it very best for industry-based settings that require little time and area, NTU Singapore famous in a press assertion.

The analysis crew from NTU’s Rehabilitation Analysis Institute of Singapore (RRIS) is within the strategy of submitting a patent with NTUitive, the college’s innovation and enterprise firm.


Most movement seize labs use a marker-based system, which entails attaching reflective markers to a topic’s physique and capturing the actions of these markers in 3D by way of a digital camera. This technique, the college famous, prevents itself from being utilized in lots of healthcare and business settings, as its use is time-consuming and requires skilled coaching. Furthermore, these markers don’t seize the human physique’s most pure actions as topics have to be cautious to not knock the markers misplaced. 

The RRIS’ Exact Marker-less eliminates the necessity for such markers because it already learns the positions the place these markers can be positioned.

By eradicating using markers and guide information post-processing, this new movement seize system permits consultations to take “an hour or much less on common,” in response to the researchers.

Furthermore, its precision could be attributed to a cache of knowledge collected by the RRIS which incorporates over 10 million photos of human actions or round 16 terabytes of knowledge as of late.

Dr Prayook Jatesiktat, an RRIS fellow who led the event of the Exact Marker-less, mentioned their movement seize tech may very well be utilized by docs and physiotherapists to objectively analyse their sufferers’ actions. 

Dr Tan Shu Yun, a senior guide on the Nationwide Healthcare Group Polyclinics, additionally noticed that the expertise may also be deployed in clinics, hospitals and group rehabilitation centres to supply goal assessments of assorted pathologies, particularly these associated to motion issues.

Moreover, athletes and coaches may use the system to evaluate their sport-related actions whereas animators may additionally undertake the expertise to drive their characters’ actions, Dr Jatesiktat shared.

The RRIS crew is continuous checks on its new expertise, aiming to additional help the evaluation and remedy of extra bodily motion issues.

In line with NTU Singapore, the Posture Lab, an area physiotherapy and sports activities therapeutic massage supplier, and imaging options supplier JM Vistec System have taken curiosity in Exact Marker-less. 


Early in March, digital MSK care agency RecoveryOne launched the Movement Coach, a pc imaginative and prescient instrument that tracks motions with out utilizing a wearable sensor. It gives visible and audio steering to customers by way of a tool’s built-in digital camera, guaranteeing sufferers can conduct bodily remedy accurately and successfully in a digital setting.

Final 12 months, Dutch agency Xsens launched an computerized reporting function on its MotionCloud platform, which analyses actions by way of wi-fi movement sensors hooked up to a person’s physique. 

In different information, wrnch, which develops a pc imaginative and prescient tech for measuring physique movement, has been acquired by Hinge Well being. The acquisition provides movement monitoring capabilities to the latter’s digital MSK Clinic.


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