Unlock instant, AI-driven research and patent intelligence for your innovation.

Map drawing method and device and mobile terminal

A map drawing and three-dimensional map technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problems of high production cost, slow speed, waste of human resources, etc., and achieve the effect of low cost, fast speed and improved efficiency

Inactive Publication Date: 2018-03-13
ZTE CORP
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The map drawing method, its device, and the mobile terminal provided by the embodiments of the present invention are used to solve the technical problems that when the existing indoor map drawing method is used for indoor map drawing, the production cost is extremely high, the speed is slow, and a large amount of human resources are wasted.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Map drawing method and device and mobile terminal
  • Map drawing method and device and mobile terminal
  • Map drawing method and device and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0027] In order to improve the efficiency of map drawing, especially the drawing of indoor maps, the existing indoor map drawing must be done manually or by setting up a large number of measuring devices. This method of drawing is very inconvenient and the cost is very high. In order to solve the above problems, the embodiment of the present invention provides a map drawing method, by using the binocular camera to obtain multiple video images of the target area at different angles, and comprehensively utilizing the current relevant visual technology to calculate the target object in the target area 3D information, so as to realize the rapid drawing of indoor maps.

[0028] See figure 1 , figure 1 For the map drawing method provided in the embodiment of the present invention, the processing steps of the map drawing method provided in the present embodiment are specifically as follows:

[0029] S100. Divide the target area to be mapped into several small areas. Specifically, s...

no. 2 example

[0072] See Figure 5 , Figure 5 It is a schematic structural diagram of a map drawing device provided by an embodiment of the present invention.

[0073] The map drawing device 5 provided in this embodiment includes a segmentation module 51, an acquisition module 52, a processing module 33 and a map drawing module 53, wherein:

[0074] The segmentation module 51 is used to divide the target area to be drawn into several small areas.

[0075] The collection module 52 is used to collect video images from different angles for the small area.

[0076] In this embodiment, the acquisition module 52 specifically controls the binocular cameras to shoot video images at different angles in the target area, and each camera in the binocular cameras obtains at least one video image at different angles respectively. There is at least one video image with a shooting angle different from other video images in the video images acquired by the target camera, and there is at least one same t...

no. 3 example

[0087] See Image 6 , Image 6 It is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention.

[0088] The mobile terminal 6 provided in this embodiment includes a map drawing device 5, a binocular camera 61 and a memory 62, wherein:

[0089] The binocular camera 61 is used to acquire video images of the target area and send them to the map drawing device 6 .

[0090] The mapping device 5 is used to control the binocular camera 61 to acquire video images of different angles of each small area in the target area.

[0091] The map drawing device 5 receives the video images of different angles sent by the binocular camera 61, and obtains the three-dimensional information of the target objects in the small area by comparing and calculating the video images of the different angles. According to all the target objects obtained 3D information to generate a 3D map of the target area.

[0092] The memory 62 is used for storing video im...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiments of the invention provide a map drawing method and device and a mobile terminal. The method includes the following steps: dividing a target region into a plurality of small regions; collecting video images of each small region at different angles; carrying out comparative calculation on the video images of the small regions at different angles to obtain 3D information of target objects in the small regions; and drawing a 3D map according to the 3D information. As the map is drawn by acquiring and comparing the video images at different angles, great convenience is brought to thestaff, the indoor map drawing workload of the staff is reduced, the cost of indoor map drawing is reduced, and the drawing speed is increased. Moreover, the method provided by the embodiment of the invention has no specific requirement on the time and the professional background of the operating personnel, and can be used more widely.

Description

technical field [0001] The invention relates to the technical field of three-dimensional map drawing, in particular to a map drawing method and device thereof, and a mobile terminal. Background technique [0002] For the use of outdoor GPS navigation, it has been more and more widely used with the popularization of smart phones. However, indoor navigation has not been well integrated due to the lack of good integration between GPS satellite signals and indoor maps. Better universal use. [0003] The reason for the poor integration of GPS satellite signals and indoor maps is that most indoor places do not provide indoor maps. At present, drawing indoor maps requires geographic surveying and mapping and related professionals to operate. However, for manual Drawing, 3 to 5 professional and skilled cartographers can only complete the indoor map production of 100,000 square meters of commercial plaza within two days, the production cost is extremely high, and the speed is extrem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00G06T7/11
CPCG06T15/005G06T2207/10016G06T2207/20128
Inventor 杨起
Owner ZTE CORP