An automated entities extraction model for elements recognition from the structural 2D drawing

Abstract

The players in construction industry are still relying on manual extraction from the drawing for the element’s details for quantity estimating, planning and scheduling, and other related activities. Unlike industrialized construction, the conventional construction is under increased pressure to measure the quantities and under tight schedules exercise automation for a better project management. Since the design serves as a source for all construction processes, the building information modeling with the specifications and the details based on elements provides the possibility of accessing the required details from the drawing directly. Conversely, the 2D drawing is complex enough to automatically recognize and identify the elements, their shape, and the properties like length, height etc from the primitive drawing shapes such as lines, arcs and texts. However the development of fuzzy logic’s rule based algorithm recognizes the elements through its properties. This paper presents the conceptual model which has been developed through extracting and recognizing the element’s details from the structural 2D digital drawing effectively.