Navarro Luis A, García Daniel O, Villavicencio Emilio A, Torres Miguel A, Nakamura Orlando K, Huamani Robinson, Yabar Leopoldo F
Grupo de I&D en Ingeniería Biomédica, Facultad de Ingeniería Electrónica y Eléctrica, Universidad Nacional Mayor de San Marcos, Lima, Perú.
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:5768-71. doi: 10.1109/IEMBS.2010.5627842.
Distribution of Foot Pressure reflects the deformations of body biomechanical design. They are caused by different reasons: degenerative, by trauma, etc., being flat foots a common pathology in Peru with high incidence. However there isn't the properly technology to detect properly this disease because is detected by a non-reliable visual way using pedoscopes. Flat foot is the degree of internal plantar arch lack and is well observed in foot pressure distribution. This distribution can be obtained by optical or electronic systems. The most required, by their accuracy, are the electronic ones but sensor manufacturing process increases its price, meanwhile optics provides an indirect optical solution whose price depends on scanners resolution. Therefore, this paper takes advantage of both systems: a direct pressure value from electronics and no problems calibration from optical systems. In regard of these reasons, prototype will use a webcam and twelve FSR (Force sensing resistor) sensors including estimation techniques, and thus obtain the foot pressure distribution. Accordingly, the present study is looking for providing to the specialist with an efficient tool to generate better diagnostics in Perú.
足底压力分布反映了人体生物力学设计的变形情况。它们由不同原因引起：退行性病变、创伤等，扁平足是秘鲁一种常见且发病率高的病理状况。然而，目前没有合适的技术来准确检测这种疾病，因为它是通过使用足诊镜以不可靠的视觉方式进行检测的。扁平足是足底内侧足弓缺失的程度，在足底压力分布中很容易观察到。这种分布可以通过光学或电子系统获得。由于其准确性，最需要的是电子系统，但传感器制造过程会提高其价格，同时光学系统提供了一种间接的光学解决方案，其价格取决于扫描仪的分辨率。因此，本文利用了这两种系统：电子系统的直接压力值和光学系统无校准问题的优点。基于这些原因，该原型将使用网络摄像头和十二个FSR（力敏电阻）传感器以及估算技术，从而获得足底压力分布。相应地，本研究旨在为秘鲁的专业人员提供一种有效的工具，以实现更好的诊断。
