A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor
The foot arch index is an important index to evaluate the health of human feet and the biomechanics line, aiming at addressing the shortcomings of the low efficiency and slow speed of manual foot arch index measurement; in this work, an automatic foot arch index measurement method based on a flexibl...
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doaj-2c339a84eb354208baefedddd1c7e4652020-11-25T03:16:41ZengMDPI AGSensors1424-82202020-05-01202892289210.3390/s20102892A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure SensorTao Zheng0Zhiyong Yu1Jin Wang2Guodong Lu3State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, ChinaState Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, ChinaState Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, ChinaState Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, ChinaThe foot arch index is an important index to evaluate the health of human feet and the biomechanics line, aiming at addressing the shortcomings of the low efficiency and slow speed of manual foot arch index measurement; in this work, an automatic foot arch index measurement method based on a flexible membrane pressure sensor was proposed. The distribution of plantar pressure data was obtained from the flexible membrane pressure sensor and converted into a digital image. The 8-neighborhood correlation pixel method was proposed to remove the interference of isolated noise points. In order to remove the toes’ data without affecting the foot sole data, the row element association algorithm was proposed. The front and back endpoints of the foot were automatically located to obtain the foot length, and the foot arch index was also automatically obtained based on the foot arch pressure area. Whether it was a high arch foot, flat foot or normal foot, the method proposed in this paper could accurately and quickly distinguish them. The prototype was developed, and its feasibility and validity were verified by a series of tests.https://www.mdpi.com/1424-8220/20/10/2892foot arch indexflexible membrane pressure sensorplantar pressureimage processing8-neighborhood correlation pixelrow element association |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tao Zheng Zhiyong Yu Jin Wang Guodong Lu |
spellingShingle |
Tao Zheng Zhiyong Yu Jin Wang Guodong Lu A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor Sensors foot arch index flexible membrane pressure sensor plantar pressure image processing 8-neighborhood correlation pixel row element association |
author_facet |
Tao Zheng Zhiyong Yu Jin Wang Guodong Lu |
author_sort |
Tao Zheng |
title |
A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor |
title_short |
A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor |
title_full |
A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor |
title_fullStr |
A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor |
title_full_unstemmed |
A New Automatic Foot Arch Index Measurement Method Based on a Flexible Membrane Pressure Sensor |
title_sort |
new automatic foot arch index measurement method based on a flexible membrane pressure sensor |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2020-05-01 |
description |
The foot arch index is an important index to evaluate the health of human feet and the biomechanics line, aiming at addressing the shortcomings of the low efficiency and slow speed of manual foot arch index measurement; in this work, an automatic foot arch index measurement method based on a flexible membrane pressure sensor was proposed. The distribution of plantar pressure data was obtained from the flexible membrane pressure sensor and converted into a digital image. The 8-neighborhood correlation pixel method was proposed to remove the interference of isolated noise points. In order to remove the toes’ data without affecting the foot sole data, the row element association algorithm was proposed. The front and back endpoints of the foot were automatically located to obtain the foot length, and the foot arch index was also automatically obtained based on the foot arch pressure area. Whether it was a high arch foot, flat foot or normal foot, the method proposed in this paper could accurately and quickly distinguish them. The prototype was developed, and its feasibility and validity were verified by a series of tests. |
topic |
foot arch index flexible membrane pressure sensor plantar pressure image processing 8-neighborhood correlation pixel row element association |
url |
https://www.mdpi.com/1424-8220/20/10/2892 |
work_keys_str_mv |
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