TY - GEN A1 - Jäger, Matthias C. A1 - Eberhardt, Jörg A1 - Cunningham, Douglas W. T1 - Experimental Analysis of Commercial Optical Methods for Foot Measurement T2 - Sensors N2 - Due to the increasing trend of online shopping, shoes are more and more often bought without being tried on. This leads to a strong increase in returns, which results in a high financial as well as ecological burden. To prevent this, feet can be measured either in the store or at home by various systems to determine the exact dimensions of the foot and derive an optimal shoe size. In this paper, we want to present an overview of the methods currently available on the market for the measurement of feet. The most important commercial systems are classified according to the underlying basic technology. Subsequently, the most promising methods were implemented and tested. The results of the different methods were finally compared to find out the strengths and weaknesses of each technology. After determining the measurement accuracy of the length and width for each measurement method and also comparing the general shape of the 3D reconstruction with the GT, it can be said that the measurement using a ToF sensor is currently the most robust, the easiest and, among other methods, the most accurate method. KW - foot measurement KW - time of flight KW - structured light KW - image processing KW - shape completion Y1 - 2022 U6 - https://doi.org/10.3390/s22145438 SN - 1424-8220 VL - 22 IS - 14 ER - TY - JOUR A1 - Zimina, A. A1 - Batchelor, David R. A1 - Eisebitt, S. A1 - Schmeißer, Dieter A1 - Shukalov, A. A1 - Eberhardt, W. T1 - Soft X-ray emission electron microscopy: chemical state microscopy from interface and bulk KW - x-ray KW - microscopy KW - interface KW - bulk Y1 - 2008 ER -