smart progress monitoring framework for building construction elements using videography–matlab–bim integration

There are different technologies available for smart construction progress monitoring, such as drones, photogrammetry, laser scanning, etc. however, utilization is typically limited due to high costs, complexities, and human resource requirements. this paper presents a framework utilizing the concept of videography through a low-cost internet protocol (ip) camera and its integration with matrix laboratory (matlab) and building information modeling (bim). the integration was done through matlab’s tools and programming to develop a software interface. the integration of the ip camera and the developed software allowed for automatic as-built quantity extraction for the concreting in columns, concreting in beams, and block masonry, which were the bulk construction activities. as-planned quantities were imported to the matlab interface to compare with as-built quantities, hence providing progress comparative assessment. for instance, the as-planned quantity for column b6 was 20.630 cft. after analysis, the result was 91.5%, which was the percentage completion of the as-built quantity in comparison to the as-planned quantity. similarly, for beam b1, the as-planned quantity was 13.7 cft, while the as-built quantity was 13.67 cft, which showed 99.8% completion of the activity for beam b1. this study aims to provide different mathematical models for the image processing of the as-built quantities of the construction activities. in addition, this study provides a framework for smart progress monitoring, which can be easily used on the construction sites by the contractors, while also providing paths for future work in developing cost-effective methods for progress monitoring.