Mobile terminal and code recognition method thereof

• US 9,299,014 B2
• Filed: 08/28/2014
• Issued: 03/29/2016
• Est. Priority Date: 08/28/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Sang-Ho, Hwang, Seong-Taek
• Primary Examiner(s): MARIAM, DANIEL G
• Application Number:
  US14/471,863
• Publication Number:
  US 20150063703A1
• Time in Patent Office: 579 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06K 7/1092 sensing by means of TV-scanning
• CPC Class Codes: G06T 3/60 Rotation of whole images or parts thereof
• CPC Class Codes: G06V 10/245 by locating a pattern; Special marks for positioning

Abstract

A code recognition method for adjusting a User Interface (UI) rotation angle of a code recognition application depending on the direction of a recognition code or text entered through a camera is provided. The code recognition method includes detecting at least a portion of the recognition code from an image including the recognition code; determining a code rotation angle of the recognition code; and extracting the recognition code or a text from the image including the recognition code based on the code rotation angle of the recognition code.

Claims

1. A method for recognizing a recognition code in a mobile terminal, the method comprising:

detecting at least a portion of a recognition code from an image including the recognition code using a code recognition application;

determining a code rotation angle of the recognition code;

determining whether a User Interface (UI) rotation angle of the code recognition application is equal to the code rotation angle of the recognition code;

if the UI rotation angle is not equal to the code rotation angle, rotating a UI of the code recognition application so that the UI rotation angle of the code recognition application is equal to the code rotation angle; and

extracting the recognition code or a text from the image based on the code rotation angle of the recognition code.

2. The method of claim 1, before detecting the at least a portion of the recognition code from the image including the recognition code, further comprising:

receiving a user input for requesting to perform a code recognition mode for detecting the recognition code; and

executing the code recognition application for detecting the recognition code.

3. The method of claim 1, wherein extracting the recognition code or the text comprises:

determining a scan direction of the image based on the code rotation angle of the recognition code;

extracting the text by scanning the image in the scan direction; and

outputting the recognition code or the text.

4. The method of claim 1, after detecting the at least a portion of the recognition code from the image including the recognition code, further comprising:

detecting a text line including the text from the image including the recognition code;

determining a rotation angle of the text line; and

extracting the recognition code or the text based on the rotation angle of the text line.

5. The method of claim 4, after determining the rotation angle of the text line, further comprising:

determining whether a UI rotation angle of the code recognition application is equal to the rotation angle of the text line; and

rotating, if the UI rotation angle is not equal to the rotation angle of the text line, a UI of the code recognition application so that the UI rotation angle is equal to the rotation angle of the text line.

6. An electronic device for recognizing a recognition code, the electronic device comprising:

a camera configured to receive an image including the recognition code; and

a processor configured to;

detect at least a portion of the recognition code from the image including the recognition code using a code recognition application,

determine whether a User interface (UI) rotation angle of the code recognition application is coincident with a code rotation angle of the recognition code,

if the UI rotation angle is not coincident with the code rotation angle, rotate a UI of the code recognition application so that the UI rotation angle of the code recognition application is coincident with the code rotation angle, and

extract the recognition code or a text from the image including the recognition code based on the code rotation angle of the recognition code.

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

an input/output device configured to receive a user input for requesting to perform a code recognition mode for detecting the recognition code.

8. The electronic device of claim 7, wherein the processor executes the code recognition application for detecting the recognition code in response to the user input.

9. The electronic device of claim 6, wherein the processor determines a scan direction of the image based on the code rotation angle of the recognition code, and extracts the text by scanning the image in the scan direction.

10. The electronic device of claim 6, wherein the processor detects a text line including the text from the image including the recognition code, determines a rotation angle of the text line, and extracts the recognition code or the text based on the rotation angle of the text line.

11. The electronic device of claim 10, wherein the processor determines whether a UI rotation angle of the code recognition application is equal to the rotation angle of the text line, and rotates, if the UI rotation angle is not equal to the rotation angle of the text line, a UI of the code recognition application so that the UI rotation angle is equal to the rotation angle of the text line.