Digital image processing techniques applied to pressure analysis and morphological features extraction in footprints.

20th Argentinean Bioengineering Society Congress

物理学;生物科学

Buchelly, F.J.^1,2,3 ; Mayorca, D.^3 ; Ballarin, V.^1 ; Pastore, J.^1

Laboratorio de Procesamiento Digital de Imágenes, ICyTE (Instituto de Investigaciones Cientificas y Tecnológicas en Electrónica), Facultad de Ingenieria, Universidad Nacional de Mar Del Plata, Argentina^1

Consejo Nacional de Investigaciones Cientificas y Técnicas - CONICET, Argentina^2

Grupo de Optica y Láser, Departamento de Fisica, Universidad Del Cauca, Colombia^3

关键词: Digital image processing technique;    Gray-scale images;    Intensity images;    Morphological descriptors;    Morphological features;    Morphological parameters;    Pressure analysis;    Pressure calculation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/705/1/012020/pdf
DOI  :  10.1088/1742-6596/705/1/012020

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

This paper shows the correlation between foot morphology and pressure distribution on footplant by means of a morphological parameters analysis and pressure calculation. Footprint images were acquired using an optical pedobarograph and then processed for obtaining binary masks and intensity images in gray scale. Morphological descriptors were obtained from the binary images and the Hernandez Corvo (HC) index was automatically calculated for determine the type of foot. Pressure distributions were obtained from gray scale images making a correspondence between light intensity in footprints and pressure. Pressure analysis was performed by finding the maximum pressure, the mean pressure and the ratio between them that determines the uniformity of the distribution. Finally, a high correlation was found between this ratio and the type of foot determined by HC index.