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Method for fast preparing vector map of house through man-machine interactive

A vector map and human-computer interaction technology, which is applied to computer parts, instruments, characters and pattern recognition, etc., can solve the problems of complex automatic generation of digital maps, achieve the effects of shortening the production cycle, reducing development costs, and high precision

Inactive Publication Date: 2003-05-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the irregularity of digital maps and the complexity of automatic generation technology, there is no practical automatic generation system for digital house maps in the world.

Method used

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  • Method for fast preparing vector map of house through man-machine interactive
  • Method for fast preparing vector map of house through man-machine interactive
  • Method for fast preparing vector map of house through man-machine interactive

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] The input data required by the present invention is the graphic expression data of the original house map. In this embodiment, the paper map is used as the original map data, and the digital house map generation system is realized on the Sun UltraSparc 170E workstation.

[0031] image 3 It is a binary digital image obtained after the original map is scanned by a 300dpi scanner. After preprocessing to remove image noise and then thinning, it is converted into a map graphic. There is no essential difference in structure between the thinned map skeleton image and the original map graph; a pixel in the map skeleton image corresponds to a node in the map graph. Then, the main curve detection is performed on the map graphics to eliminate the corresponding components of the text and symbols in the original map; and...

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PUM

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Abstract

A generating method of man-machine interactive quick house vector map is to alter original image after preprocess into map graph to be detected on the main curve to form a house vector map with man-machine interactive method to identify and eliminate mis-decided points inside the house by calculating border seed spots of a house to search for house border graph breaking points to be eliminated resulted in misdecided points outside the house then to connect gaps to form closed house profile, which applies house edge points assumption and assumption vertification so as to make up defect resulted in graph generating process, used in digit map generation system, and quick renew of maps.

Description

Technical field: [0001] The invention relates to a human-computer interaction rapid house vector map generation method, which is used for modifying, generating and editing digital house map data, and belongs to the technical field of computer information image processing. Background technique: [0002] With the rapid development of intelligent transportation system, global satellite positioning system, computer and information science, digital map has been widely used in many fields. Especially in vehicle navigation, vehicle localization and land planning, digital maps play a key role. In the current digital map production process, the input of map data widely adopts the interactive computer interface method. Because this method is a manual data input method, it needs a large number of computer operators and quite a long time to complete the data input work of the map, resulting in high cost of digital map production and long production cycle. Using computer vision and pat...

Claims

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Application Information

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IPC IPC(8): G06K9/36G06K9/48
Inventor 鲍海峰刘允才
Owner SHANGHAI JIAO TONG UNIV
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