NTU researchers develop marker-less movement seize tech for physiotherapy


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


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

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

The analysis workforce 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 means of a digital camera. This method, 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 must 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 could be positioned.

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

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

Dr Prayook Jatesiktat, an RRIS fellow who led the event of the Exact Marker-less, mentioned their movement seize tech could possibly be utilized by medical doctors 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 neighborhood rehabilitation centres to supply goal assessments of varied pathologies, particularly these associated to motion problems.

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 workforce is constant checks on its new expertise, aiming to additional assist the evaluation and therapy of extra bodily motion problems.

In keeping 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 device that tracks motions with out utilizing a wearable sensor. It offers visible and audio steering to customers by means of a tool’s built-in digital camera, making certain sufferers can conduct bodily remedy accurately and successfully in a digital surroundings.

Final 12 months, Dutch agency Xsens launched an computerized reporting function on its MotionCloud platform, which analyses actions through 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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