METHOD AND SYSTEM FOR GENERATING DATA USING A MOBILE DEVICE WITH A PROJECTION FUNCTION

• US 20110149101A1
• Filed: 11/12/2010
• Published: 06/23/2011
• Est. Priority Date: 12/18/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: JANG, Si Hak, KIM, Hee Woon
• Granted Patent: US 8,693,787 B2
• Time in Patent Office: Days
• US Class Current: 348/222.1
• CPC Class Codes: G06T 3/08 Projecting images onto non-planar surfaces, e.g. geodetic screens
• CPC Class Codes: G06T 7/70 Determining position or orientation of objects or cameras camera calibration G06T7/80
• CPC Class Codes: G06T 7/97 Determining parameters from multiple pictures depth or shape recovery from multiple images G06T7/55; stereo camera calibration G06T7/85
• CPC Class Codes: G06V 30/142 using hand-held instruments; Constructional details of the instruments
• CPC Class Codes: G06V 30/412 Layout analysis of documents structured with printed lines or input boxes, e.g. business forms or tables
• CPC Class Codes: H04N 1/00249 with a photographic apparatus, e.g. a photographic printer or a projector photographic apparatus per se G03B, G03D
• CPC Class Codes: H04N 1/00307 with a mobile telephone apparatus constructional features of portable telephone sets H04M1/0202; mobile radio systems H04W84/00
• CPC Class Codes: H04N 1/00392 Other manual input means, e.g. digitisers or writing tablets
• CPC Class Codes: H04N 1/00411 the display also being used for user input, e.g. touch screen
• CPC Class Codes: H04N 2101/00 Still video cameras
• CPC Class Codes: H04N 2201/0084 Digital still camera
• CPC Class Codes: H04N 23/00 Cameras or camera modules comprising electronic image sensors; Control thereof
• CPC Class Codes: H04N 5/7408 Direct viewing projectors, e.g. an image displayed on a video CRT or LCD display being projected on a screen
• CPC Class Codes: H04N 9/3141 Constructional details thereof details not peculiar to the presence of an electronic spatial light modulator G03B21/14
• CPC Class Codes: H04N 9/3176 wherein the projection device is incorporated in a camera details of cameras adapted for combination with a projector not peculiar to the presence of an electronic spatial light modulator G03B17/54
• CPC Class Codes: H04N 9/3179 Video signal processing therefor
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

A method and system for generating data in a mobile device is provided. The method includes, outputting an image, stored in the mobile device, to an external screen, capturing the external screen on which the image is being displayed and creating a captured image, comparing the output image with the captured image and extracting an added image from the captured image, and creating data from the extracted image. When the mobile device user writes or draws on an external screen on which the mobile device outputs an image, the mobile device can capture the external screen, create data from the user'"'"'s input content and store them in the storage unit.

Claims

1. A method for generating data in a mobile device, the method comprising:

outputting an image, stored in the mobile device, to an external screen;

capturing the external screen on which the image is being displayed and creating a captured image;

comparing the output image with the captured image and extracting an added image from the captured image; and

creating data from the extracted image.

2. The method of claim 1, wherein the captured image is created as a user inputs a capture command in the mobile device.

3. The method of claim 1, wherein the creating of the captured image is performed repeatedly and periodically.

4. The method of claim 1, wherein the output image has a preset form for the mobile device.

5. The method of claim 1, wherein the output image comprises a number of areas to which coordinate values are assigned to, respectively.

6. The method of claim 1, wherein the output image comprises a number of areas, at least one of which is blank.

7. The method of claim 4, wherein the extracting of the added image comprises:

determining whether the captured image contains the added image;

extracting, when the captured image contains the added image, the added image; and

detecting a location about the extracted image in the output image.

8. The method of claim 5, wherein the extracting of the added image comprises:

determining whether the captured image contains the added image;

extracting, when the captured image contains the added image, the added image;

detecting a coordinate value of a location where the extracted image is located in the output image; and

detecting an area corresponding to the detected coordinate value in the output image.

9. The method of claim 1, wherein the creating of the data comprises:

converting the extracted image into text data.

10. The method of claim 7, wherein the creating of the data comprises:

combining the extracted image with the output image, according to the detected location.

11. The method of claim 8, wherein the creating of the data comprises:

inputting the extracted image into the detected area of the output image.

12. A mobile device comprising:

a projector module for outputting an image to an external screen;

a camera module for capturing the external screen on which the image is being displayed and creating a captured image; and

a controller for comparing the output image with the captured image, for extracting an added image from the captured image, and for creating data from the extracted image.

13. The mobile device of claim 12, wherein the projector module outputs a format image comprising a number of areas to which coordinate values are assigned, respectively.

14. The mobile device of claim 12, wherein the controller determines whether the captured image contains the added image, detects a coordinate value of a location where the extracted image is located in the output image, detects an area corresponding to the detected coordinate value in the output image, extracts the added image, and inputs the added image in the detected area to create data.

15. A method of generating data in a mobile device, the method comprising:

projecting a preset image from the mobile device onto an external screen;

detecting an image added to the preset image by a user; and

extracting the added image.

16. The method of claim 15, wherein the detecting of the added image comprises:

capturing an image of the external screen having the added image;

comparing the preset image with the captured image; and

extracting the added image based on a result of the comparison.

17. The method of claim 15, further comprising:

converting the added image into text data.

18. The method of claim 15, further comprising:

combining the added image with the preset image based on a location of the added image in the preset image.