Automatic reconstruction of regular buildings using a shape‐based balloon snake model

Abstract

Buildings are regarded as the most prominent man-made objects: hence, their automatic extraction from aerial and satellite images has attracted the interest of photogrammetric research communities. In this paper, a balloon snake, a wellknown active contour model, was developed for the precise extraction of building boundaries. Traditional active contours are highly sensitive to image data and are problematic when building boundaries are weakened, usually due to occlusions. To improve the efficiency of the traditional balloon snake model, a shape-based balloon snake model was introduced where knowledge about the expected geometrical shape of buildings was modelled and applied to the traditional snake representation. Implementation of the proposed algorithm confirmed its efficiency in the precise extraction of building boundaries. Experimental results and the qualitative and quantitative evaluations demonstrate the potential of the proposed shape-based balloon snake model and its superiority over traditional models.

Automated Fish Detection in Underwater Images Using Shape‐Based Level Sets

“…() and Yari et al. () and are especially useful for delineating features like fish bodies that are difficult to model with rigid geometric primitives. Snakes are represented as explicit, parametric contours.…”

Assessing the contribution of RGB VIs in improving building extraction from RGB-UAV images

“…However, these line-based approaches encounter limitations with certain building geometries and struggle with low signal-to-noise ratio (SNR) in VHR images [9][10]. Some methods employ template matching, which involves the use of manually generated templates and similarity measures for building extraction [11][12][13][14]. Despite their flexibility and accuracy, template-based approaches require extensive prior knowledge of the geometrical shape parameters for the design and generation of the templates.…”

Comparison of Quality Measures for Building Outline Extraction

“…This is due to their numerous applications, such as in urban planning, real estate, telecommunications and flight planning. Therefore, the development of methods for automatic building extraction from airborne laser scanning and/or images has been a frequent research topic in photogrammetry and remote sensing for the last two decades (Haala and Brenner, ; Jin and Davis, ; Kaartinen and Hyyppä, ; Lee et al., ; Erener, ; Yang et al., ; Rottensteiner et al., ; Yari et al., ).…”