Controlled photogrammetry system for determination of volume and surface features in soils

Jared Suchan; Shahid Azam

doi:10.1016/j.mex.2021.101368

Controlled photogrammetry system for determination of volume and surface features in soils

MethodsX. 2021 Apr 28:8:101368. doi: 10.1016/j.mex.2021.101368. eCollection 2021.

Authors

Jared Suchan¹, Shahid Azam¹

Affiliation

¹ Environmental Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada.

Abstract

Quantitative and qualitative determination of total volume and surface features of a soil specimen is important in geotechnical engineering. Available methods suffer from a variety of shortcomings such as sample disturbance, equipment calibration, and lack of precision. The Controlled Photogrammetry System (CPS) is based on Structure-from-Motion (SfM) to capture a series of photographs and transform the images into a referenced three-dimensional model. • This paper develops the Controlled Photogrammetry System. • This paper describes the design and operation of the Controlled Photogrammetry System. • This paper presents data processing and test results for a sand and clay.

Keywords: Controlled photogrammetry system; Soil volume; Structure from motion; Surface features.