MAP SUPERPOSITION METHOD AND ELECTRONIC DEVICE

• US 20150130833A1
• Filed: 09/26/2014
• Published: 05/14/2015
• Est. Priority Date: 11/08/2013
• Status: Abandoned Application

• Current Assignee: Lenovo (Beijing) Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo (Beijing) Limited (Lenovo Group Ltd.)
• Inventors: MAO, Yufeng
• Application Number:
  US14/497,443
• Publication Number:
  US 20150130833A1
• Time in Patent Office: Days
• US Class Current: 345/632
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text

Abstract

The embodiments of the present disclosure relate to electronic technology and provide a map superposition method and an electronic device, capable of solving the problem associated with low positioning accuracy and limited information available for users due to lack of detailed map information on a small area. A first image is obtained. First identification information contained in the first image and second identification information contained in a first map are adjusted and compared. The first image is superimposed on the first map to obtain a second map when the comparison indicates that a predetermined condition is satisfied. Operations associated with a map application are performed based on the second map. The embodiments of the present disclosure solves the problem associated with low positioning accuracy and limited information available due to lack of detailed map information on a small area and improves the user experience.

Claims

1. A map superposition method applied in an electronic device, the method comprising:

obtaining a first image containing first map information and first identification information;

obtaining a first map containing second map information and second identification information; and

adjusting and comparing the first identification information and the second identification information and, if the first identification information and the second identification information satisfy a predetermined condition, superimposing the first image on the first map to obtain a second map.

2. The method of claim 1, wherein said obtaining the first image comprises:

obtaining the first image using an image capture module of the electronic device;

or

loading, as the first image, an image stored in the electronic device or acquired by the electronic device from an external device.

3. The method of claim 1, wherein the first identification information comprises a first road and a scale and location information of the first road, and the second identification information comprises a second road and a scale and location information of the second road, and

wherein said adjusting and comparing the first identification information and the second identification information comprises:

adjusting the scale of the first road and/or the scale of the second road, such that the scales of the first and second roads become equal to each other;

adjusting a positional relation between the first image and the first map and determining that the first identification information and the second identification information satisfy the predetermined condition when the location information of the first road and the location information of the second road become identical to each other, or

determining that the first identification information and the second identification information satisfy the predetermined condition in response to receiving a confirmation instruction from a user.

4. The method of claim 1, further comprising, prior to said adjusting and comparing the first identification information and the second identification information:

normalizing the first image.

5. The method of claim 1, wherein said superimposing the first image on the first map to obtain the second map comprises:

superimposing the first map information of the first image onto the first map to obtain the second map which contains both the first map information and the second map information, and

wherein each of the first and second map information contains information regarding at least one of;

a road, buildings along a road, a scenic spot, a facility and traffic.

6. An electronic device, comprising:

a first obtaining module configured to obtain a first image containing first map information and first identification information;

a second obtaining module configured to obtain a first map containing second map information and second identification information; and

a comparing and superimposing module configured to adjust and compare the first identification information and the second identification information and to superimpose, if the first identification information and the second identification information satisfy a predetermined condition, the first image on the first map to obtain a second map.

7. The electronic device of claim 6, wherein the first obtaining module is configured to:

obtain the first image using an image capture module of the electronic device;

or

load, as the first image, an image stored in the electronic device or acquired by the electronic device from an external device.

8. The electronic device of claim 6, wherein the first identification information comprises a first road and a scale and location information of the first road, and the second identification information comprises a second road and a scale and location information of the second road, and

wherein the comparing and superimposing module is configured to:

adjust the scale of the first road and/or the scale of the second road, such that the scales of the first and second roads become equal to each other;

adjust a positional relation between the first image and the first map and determine that the first identification information and the second identification information satisfy the predetermined condition when the location information of the first road and the location information of the second road become identical to each other, or

determine that the first identification information and the second identification information satisfy the predetermined condition in response to receiving a confirmation instruction from a user.

9. The electronic device of claim 6, further comprising:

a pre-processing module configured to normalize the first image before the first identification information and the second identification information are adjusted and compared.

10. The electronic device of claim 6, wherein the comparing and superimposing module is further configured to:

superimpose the first map information of the first image onto the first map to obtain the second map which contains both the first map information and the second map information, and

wherein each of the first and second map information contains information regarding at least one of;

a road, buildings along a road, a scenic spot, a facility and traffic.