Automatic Building Extraction from Satellite Imagery

Automatic building extraction is an active research in remote sensing recently. It has been going on for more than 20 years but the automated extractions still encounter problems due to image resolution, variation and level of details. Mayunga et al. (2005) developed an improved snake model. However their radial casting encounters difficulties in initializing the snake model. This research paper discusses the development of an active contour model initialization algorithm. The prototype uses the existing improved snake energy function to compute the snake contours, but initialize the model with circular casting algorithm instead of radial casting algorithm.