Dynamic FootMorphology is based on our 4Dmotion technology working with moving 3D objects. 4Dmotion is based on the optical time of flight camera technology providing 3D image information of contemplated objects. To measure the foot three cameras are integrated in a walkway. In the measuring area one camera is place underneath a glass plate to record the foot plantar surface. Two additional cameras are looking from the side to the foot dorsal surface.  The system calibration is easily done with a cubic calibration tool. After calibration, the Dynamic FootMorphology scanner is ready for recording static and walking trials.

The field of view of the system is dealing with feet sizes up to 400 mm by a height of 200mm. Dynamic FootMorphology is a compact, easy to use dynamic foot scanner which allows measuring the complete 3D foot shape deformation during the foot roll-over. Dynamic FootMorphology scanner is measuring up to 42 fps and supplies the data in an STL format for further processing in CAD/CAM software.

For static trial (standing position), an additional analysis module is available. Virtual markers are automatically positioned on anatomical landmarks in order to extract different parameters of foot anthropometry (circumference, length, width, height). These markers can be manually moved if necessary. All distances between two virtual marker points or angles can be calculated, by just selecting the appropriated markers. An example is given on the picture: by selecting the markers of the medial and lateral malleoli, the distance between these markers is obtained.

Distance sample:

Angle sample:

Dynamic FootMorphology can be extended by a force plate to combine shape and force information during locomotion. Connecting video sequences to the foot scanner is as well possible.

Advantages:

• Dynamic information of the 3D foot shape deformation
• Instantaneous scanning (compared to laser scan)
• Transportable
• Easy to use (calibration, records and analyses)
• STL files export
• additional module for static trials analysis

Applications

• Study foot deformation during roll-over 
• Personalized shoe last design
• Personalized orthopedic shoes and orthosis
• Clinical research (e.g. hallux valgus, hyper pronation, forefoot adductus)