Method and equipment for updating map data

A technology of map data and geographical data, which is applied in the direction of electronic digital data processing, special data processing applications, character and pattern recognition, etc., can solve the problems of low search accuracy, dependence, and inability to quickly update electronic maps, etc., to improve manageability efficiency, avoid inconvenience and waste of resources

Inactive Publication Date: 2008-10-01
NEC (CHINA) CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing map update methods all rely on manual operations, resulting in the inability to quickly update the electronic map
[0009] In addition, because the existing composite map only associates the location with the surrounding scene images taken at the location, it cannot provide personalized information to the user, and the search accuracy is low.

Method used

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  • Method and equipment for updating map data
  • Method and equipment for updating map data
  • Method and equipment for updating map data

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Embodiment Construction

[0055] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components, although shown in different drawings. For clarity and conciseness, detailed descriptions of known functions and constructions incorporated herein will be omitted since they would otherwise obscure the subject matter of the present invention.

[0056] Fig. 1 is a schematic structural diagram of a device for updating map data according to an embodiment of the present invention. The device according to the embodiment of the present invention includes: a first map memory 10, a data acquisition part 20, a representative area association part 30, a segmentation part 40, a video data memory 50, a second map memory 60, an image extraction part 70, an image comparison section 80 and output section 90.

[0057] As shown in FIG. 1 , a composite map is...

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Abstract

The invention discloses a method and a device of updating map data, wherein, each place in the map not only is related to geographic data, but also is related to at least one scene image pictured in the place. The method comprises: collecting video data and the geographic data representing location of the place in each place; extracting a representative area representing the place from the scene image based on predetermined standards and making the representative area related to the place; extracting an image pictured in the place from the video data based on the location of the place; matching the representative area and the extracted image and generating a matching result; in the condition that the matching result shows the map data need to be updated, making the image matched with the representative area as an update image to update the scene image. Making use of the invention can rapidly update the map data, so as to provide up-to-date geographic data for users.

Description

technical field [0001] The invention relates to geographic information processing technology, in particular to a method and device for rapidly updating map data, so as to provide users with the latest geographic information. Background technique [0002] Now maps play a very important role in our daily life. For people traveling, the map can tell people along which route to reach the destination, and can tell people other information related to the destination. [0003] In addition, some new maps, such as electronic maps, can not only provide users with the same location information and business place names as traditional maps, but also provide users with scenes along the road to the destination and around the destination. [0004] Regarding electronic maps, for example, Patent Document 1 (US6640187) discloses a typical method for generating a geographic information database. The method proposes installing sensors on the vehicle for collecting geographic information along ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/32G06F17/30
CPCG06K9/00664G06K9/00791G01C21/32G06V20/10G06V20/56G01C21/3848
Inventor 谢杰成徐成华薛敏宇
Owner NEC (CHINA) CO LTD
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