IMAGE COMPARISON DEVICE USING PERSONAL VIDEO RECORDER AND METHOD USING THE SAME

• US 20110044602A1
• Filed: 02/23/2009
• Published: 02/24/2011
• Est. Priority Date: 02/29/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lim, Jung Eun, Kim, Jong Chan, Im, Jin Seok, Shin, Sung Wook, Hwang, In Gu, Oh, Seung Kyun
• Granted Patent: US 9,294,710 B2
• Time in Patent Office: Days
• US Class Current: 386/224
• CPC Class Codes: H04N 21/4147 PVR [Personal Video Recorder] H04N5/76 takes precedence ; arrangements for broadcast with accumulation-type receivers H04H20/40
• CPC Class Codes: H04N 21/4223 Cameras H04N23/00 takes precedence
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/781 on disks or drums

Abstract

The present disclosure relates to an image comparison device using a personal video recorder, the device comprising: a display unit configured to output a reference image; at least one camera configured to obtain a comparison image by taking a picture of a present scene of a subject chasing a movement of an object included in the reference image while the reference image is displayed on the screen of the display unit; and a controller configured to display the comparison image along with the reference image on the screen, and a method using the image comparison device.

Claims

1. An image comparison device using a personal video recorder, the image comparison device comprising:

a display unit configured to output a reference image;

at least one camera configured to obtain a comparison image by taking a picture of a present scene of a subject chasing a movement of an object included in the reference image while the reference image is displayed on a screen of the display unit; and

a controller configured to display the comparison image along with the reference image on the screen.

2. The device of claim 1, further comprising:

an encoding/decoding unit configured to encode the comparison image taken by using the camera in MPEG, or configured to decode the MPEG encoded data by means of MPEG; and

a memory configured to store the data encoded by means of MPEG.

3. The device of claim 2, wherein the controller comprises:

a time entry input point unit configured to store at least one of a recording start time of the comparison image, a recording termination time of the comparison image, and a time information on the each image which is consisted of the comparison image, by matching the time information to the reference image, while the reference image is displayed on the screen; and

a search unit configured to search a position of the reference image and a position of the comparison image stored in the memory.

4. The device of claim 3,

wherein, the time information on the reference image comprises at least one of a transport stream information, a program stream information, and an information on the position of bit-stream file data corresponding to each still image consisting of the reference image in the memory which stores the reference image.

5. The device of claim 1, further comprising

a video analysis unit configured to generate a analysis data based on a difference between the reference image and the comparison image,

wherein, the controller is configured to control to output the analysis data to the screen.

6. The device of claim 1, further comprising

a video analysis unit configured to generate a analysis data on the reference image from a object included in the reference image,

wherein, the controller is configured to control to output the analysis data on the reference image to be overlaid on the comparison image of the screen.

7. The device of claim 1, further comprising

an user input unit configured for a user to input directly an analysis data where the user determines on the comparison image,

wherein the controller is configured to output the analysis data on the screen,

wherein the analysis data is inputted from the user input unit.

8. The device of claim 1,

wherein the reference image is displayed on a first area of the screen and the comparison image is displayed on a second area which is different from the first area.

9. The device of claim 1,

wherein the each one of the first area and the second area occupies a half of the screen by dividing the screen.

10. The device of claim 1,

wherein the comparison image is displayed on the screen in the form of PIP (Picture in Picture).

11. The device of claim 1,

wherein the reference image and the comparison image are respectively moving images.

12. The device of claim 1,

wherein the comparison image includes a plurality of image units where the subject is taken at different angles.

13. A method for comparing images using a personal video recorder, the method comprising:

obtaining a comparison image by taking a picture of a present scene of a subject chasing a movement of an object included in a reference image while the reference image is displayed on a screen of a display unit; and

displaying the comparison image along with the reference image on the screen.

14. The method of claim 13, further comprising:

storing the comparison image taken by using the camera in a memory, the comparison image encoded by MPEG; and

outputting the comparison image stored in the memory on the screen by decoding the comparison image in form of MPEG.

15. The method of claim 13, further comprising

storing at least one of a recording start time of the comparison image, a recording termination time of the comparison image, and a time information on the each image consisting of the comparison image, by matching the time information on the reference while the reference image is displayed on the screen,

wherein, the time information on the reference image comprises at least one of a transport stream information, a program stream information, and an information on the position of bit-stream file data corresponding to each still image consisting of the reference image in the memory which stores the reference image.

16. The method of claim 13, further comprising:

generating an analysis data based on the difference between the reference image and the comparison image; and

outputting the analysis data on the screen.

17. The method of claim 13, further comprising:

generating an analysis data on the reference image from an object included in the reference image; and

outputting the analysis data on the reference image to be overlaid on the comparison image of the screen.

18. The method of claim 13, further comprising:

inputting an analysis data directly where the user determines on the comparison image; and

outputting the analysis data on the screen, wherein the analysis data is input from the user input unit.

19. The method of claim 13,

wherein the reference image is displayed on a first area of the screen and the comparison image is displayed on a second area which is different from the first area, and

wherein each of the first area and the second area occupies a half of the screen by halving the screen.

20. The method of claim 13, further comprising

outputting a sound signal through a speaker on the reference image, while the reference image and the comparison image are displayed on the screen.