Recognition of Connective Relationship among House Blocks from House Maps
- 359 Downloads
In this paper, we propose an experimental method to recognize connective relationships among house blocks in house maps. In house maps, some geometric constraints are imposed on the configuration among neighboring house blocks, but the connective structures are varied. Thus, it is very difficult to distinguish the constructive relationships among individual house blocks. To cope with this difficulty, we use not only block lines but also block areas, which are composed of connective background pixels in house map images. This paper describes our recognition method and evaluates the effectiveness through experiments.
Unable to display preview. Download preview PDF.
- 1.O. Shiku et al.:Character xtraction from Map Image.Trans. on IPSJ. 34-2 (1993) 273–280 [in Japanese ]81Google Scholar
- 2.T. Watanabe, R. Zhang: Recognition of Character Strings from Color Urban Map Images on the Basis of Validation Mechanism. Proc. of ICDAR’ 97.2 (1997) 805–808 81Google Scholar
- 3.T. Shimasaki, T. Watanabe: Extraction of Character Strings from House Maps.Proc. of MVA’ 98.(1998)297–300 81,84Google Scholar
- 4.T. Naruse, T. Watanabe, Q. Luo, N. Sugie: A Structure Recognition Method of Table-Form Documents on the Basis of the Information of Line Segments.Trans. on IICE. J75-D-II-8 (1992) 1372–1385 [in Japanese ]81Google Scholar
- 5.T. Sobue, T. Watanabe: Identification of Item Fields in Table-form Documents with/without Line Segments.Proc. of MVA’ 96. (1996) 522–525 81Google Scholar
- 6.A. Shio, Y. Aoki: Sketch Plan:A Prototype System for Interpreting Hand-Sketched Floor-Plans.Trans. on IICE.J82-D-II-3 (1999) 431–439 [in Japanese ]81Google Scholar
- 7.N. Yokokura, T. Watanabe: Layout-based Approach for Extracting Constructive Elements of Bar Graphs. Proc. of GREC’ 97. (1997) 119–126 81Google Scholar
- 8.U. E. Ramer: An Interative Procedure for the Polygonal Approximation of Plane Curve.Proc. of CGIP.(1972) 244–256 85Google Scholar