SPATIAL RELATION EXTRACTION FROM REMOTELY SENSED IMAGE ON QUADTREE REPRESENTATION
LI Deren, Zequn Guan · 1988
This paper addresses a development of spatial relation extraction from remotely sensed image based on quad tree representation. The input image is first transformed into a hierarchical structure of quadtrees, which is composed of quadtree, segmentation quadtree; homogeneous region quadtree and spatial relation quadtree. With the description of hierarchical quadtrees ,appropriate spatial relation can be extracted ,which is from local to global as more and more object knowledge is used. The strategy that is called discrimination graphs algorithm for spatial relation extraction in terms of quadtree representation is presented . The result obtained in this paper is clear and can easily be used for remotely sensed image interpretation.