Acta Geodaetica et Cartographica Sinica ›› 2021, Vol. 50 ›› Issue (12): 1683-1693.doi: 10.11947/j.AGCS.2021.20200227

• Location Service and Geospatial Information Processing • Previous Articles     Next Articles

Shape similarity measurement based on DNA alignment for buildings with multiple orthogonal features

WEI Zhiwei1,2, GUO Qingsheng3,4, CHENG Lu3, LIU Yang3, TONG Ying3   

  1. 1. Key Laboratory of Network Information System Technology, Institute of Electronic, Chinese Academy of Sciences, Beijing 100830, China;
    2. The Aerospace Information Research Institute, Chinese Academic of Sciences, Beijing 100830, China;
    3. School of Resources and Environment Science, Wuhan University, Wuhan 430079, China;
    4. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China
  • Received:2020-06-08 Revised:2021-01-14 Published:2022-01-08
  • Supported by:
    The National Natural Science Foundation of China (No. 41871378)

Abstract: Shape similarity between buildings is useful for building matching, classification, retrieval, etc. As buildings tend to be designed with square angles, we proposed a method to measure shape similarity for buildings with multiple orthogonal features based on Needleman-Wunsch (NW) and Smith-Waterman (SW) algorithms. While encoding building shape into a sequence, adjacent two angles are taken as codes. Type, angle and length characteristics of the codes are described, and their similarity are then defined. NW and SW algorithms are applied to compute similarities between two encoding sequences of buildings. Shape-based query experiments show that proposed method in this paper can effectively measure the shape similarity between buildings. And the experimental results are also in line with human visual perception.

Key words: buildings, shape similarity, spatial cognition, sequence analysis

CLC Number: