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Algorithm Research & Explore
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2655-2663

Description and reasoning with direction relation of disconnected spatial objects

Wang Miao1
Dong Xingxing2
Gao Jixun1,2
Fang Zhenxi3
Tang Hao3
Li Song4
1. School of Computer, Henan University of Engineering, Zhengzhou 451191, China
2. School of Computer Science & Technology, Henan Polytechnic University, Jiaozuo Henan 454000, China
3. School of Computer Science, Zhongyuan University of Technology, Zhengzhou 451191, China
4. School of Computer Science, Harbin University of Science & Technology, Harbin 150080, China

Abstract

In view of the fact that there is still a certain gap in representing and reasoning with the orientation relation between real objects due that the existing models for representing and reasoning with direction relations use a point and minimum bounding rectangle to approximate the spatial object itself, this paper proposed a new model for dealing with the disconnected spatial objects based on Voronoi diagram. With the help of the theory of Gestalt psychological, the proposed model constructed visual regions between spatial objects by extracting the feature points and feature chains of the disconnected spatial objects to generate the direction Voronoi diagram, which realized the representation of directions between the space objects which were disconnected and contain holes. This model fully considered the influence of the shape, size and other factors of the spatial objects, and had higher expression accuracy and wider applicability. In order to improve the precision of reasoning with cardinal directional relations between complex spatial objects, this paper proposed an algorithm for composing cardinal direction relations defined by the proposed model, which reduced the uncertainty of the results of composition by means of Tile-union operation and Pr operation. The results of analysis and verification show that the proposed model and algorithm reduce the uncertainty of the reasoning results, improve the accuracy of representation and reasoning, and then enhance the ability to analyze and process the direction relations with complex spatial objects.

Foundation Support

国家自然科学基金资助项目(61802115,62173126)
河南省科技攻关项目(232102210156,232102210085,242102211009)
河南省高等学校重点科研项目(23A510018,24A520049)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2024.01.0005
Publish at: Application Research of Computers Printed Article, Vol. 41, 2024 No. 9
Section: Algorithm Research & Explore
Pages: 2655-2663
Serial Number: 1001-3695(2024)09-013-2655-09

Publish History

[2024-03-19] Accepted Paper
[2024-09-05] Printed Article

Cite This Article

王淼, 董星星, 高继勋, 等. 非连通空间对象方向关系表达与推理 [J]. 计算机应用研究, 2024, 41 (9): 2655-2663. (Wang Miao, Dong Xingxing, Gao Jixun, et al. Description and reasoning with direction relation of disconnected spatial objects [J]. Application Research of Computers, 2024, 41 (9): 2655-2663. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.


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