Image processing based foot plantar pressure distribution analysis and modeling

Ali Hussein Sabry (University of Baghdad)
W. Z. Wan Hasan (Universiti Putra Malaysia)
Mohd Nazim Mohtar (Universiti Putra Malaysia)
Raja Mohd Kamil Raja Ahmad (Universiti Putra Malaysia)
Hafiz Rashidi Ramli (Universiti Putra Malaysia)
S. P. Ang (University Technology Brunei)
Zainidi Haji Abdul Hamid (University Technology Brunei)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 17, No 2: February 2020

Although many equipments and techniques are available for plantar pressure analysis to study foot pressure distributions, there is still a need for mathematical modelling references to compare the acquired measurements. In order to derive formulas in this concern, this research proposes a measurement-based method which adopts the reference measured parameters such as; the weight of a subject, contact-area size, age, and the pressure level distribution over a plantar image captured by the EMED plantar pressure system. The proposed analysis and algorithm were verified by a group 79 volunteers through data collection with four various measurement conditions. Three mathematical modelling equations have been proposed that describe the relationships between the foot plantar pressure levels and the subject’s body mass, foot size, and age. The modelling of foot plantar pressure could be useful for various applications such as gait analysis, hospitals, clinics, custom shoe making, and early detection of ulceration in the case of diabetic patients.