Image comparison device using personal video recorder and method using the same

Patent metadata

Field	Value
Publication number	US-9294710-B2
Application number	US-91993509-A
Country	US
Kind code	B2
Filing date	Feb 25, 2009
Priority date	Feb 29, 2008
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

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.

First claim

The invention claimed is:

1. A method for displaying a plurality of videos in a display device, the method comprising:
displaying a reference video;
acquiring a comparison video via a camera of the display device while displaying the reference video;
displaying the acquired comparison video with the reference video, wherein the reference video is displayed on a first window and the comparison video is displayed on a second window;
storing time information on reproduction of the reference video;
searching a reproducing position of the displayed reference video based on the stored time information; and
generating analysis data based on both the searched reproducing position of the displayed reference video and the stored time information on the reference video,
wherein the first window and the second window are simultaneously and separately displayed on a screen of the display device, and
wherein a size of the comparison video is different from a size of the reference video,
storing, in a memory, the acquired comparison video and information on the acquired comparison video, wherein the storing the acquired comparison video and the information comprises:
determining a movement of an object in the reference video and a movement of an object in the comparison video, and
storing, in the memory, a determined result for the reference and comparison videos;

receiving a request for outputting analysis data based on the stored determined result, wherein the analysis data comprises posture correction information that is generated based on the determined result between the reference video and the comparison video by using a human's basic skeleton structure as a basic human body model, the human's basic skeleton structure is displayed as a line, and a human's joint is displayed as a point;
outputting the analysis data on the screen;
searching a match point between the reference video and the comparison video;
analyzing a similarity of the searched match point; and

outputting analysis data on the posture shape of human when the human's basic skeleton structure is analyzed around a head portion of a human.

2. The method of claim 1 , wherein the comparison video is obtained by taking a picture of a present scene of a subject chasing a movement of an object included in the reference video.

3. The method of claim 1 , wherein the reference video is output on a first area of the screen, and the comparison video is output on a second area of the screen at a same time, and wherein the first area and the second area of the screen are not overlapped in the screen.

4. The method of claim 1 , wherein the reference video is output on a first area of the screen, and the comparison video is output on a second area of the screen at a same time, and wherein the size of the comparison video is smaller than the size of the reference video in the screen.

5. The method of claim 1 , wherein the analysis data includes data inputted by a user through a user input unit of the display device.

6. The method of claim 1 , wherein the displaying of the acquired comparison video with the reference video comprises outputting a sound for the reference video while simultaneously outputting the reference video and the comparison video on the screen.

7. The method of claim 1 , wherein the analysis data is output on the reference video in an overlaid format on the comparison video when the comparison video is displayed later.

8. The method of claim 1 , wherein the time information includes information on a recording start time and a recording termination time.

9. The method of claim 1 , wherein the reference video and the comparison video are synchronized.

10. The method of claim 1 , wherein the analysis data is further referred to based on a difference between the reference video and the comparison video.

11. The method of claim 1 , wherein the analysis data is displayed along with at least one of the reference video and the comparison video.

12. A display device for displaying a plurality of videos, the display device comprising:
at least one camera configured to acquire a comparison video while displaying a reference video;
a display unit configured to display the acquired comparison video with the reference video, wherein the reference video is displayed on a first window and the comparison video is displayed on a second window, on a screen of the display unit;
a storage unit configured to store time information on reproduction of the reference video;
a video analysis unit configured to generate analysis data; and
a controller configured to control to:
acquire the comparison video via the at least one camera,
search a reproducing position of the displayed reference video based on the stored time information,
generate the analysis data based on the searched reproducing position of the displayed reference video and the stored time information on the reference video, and
display the reference video on the first window and the comparison video on the first window, wherein the first window and the second window are simultaneously and separately outputted on the screen of the display device, and wherein a size of the reference video is different from a size of the comparison video,
store, in the memory, the acquired comparison video and information on the acquired comparison video, wherein the storing the acquired comparison video and the information comprises:
determine a movement of an object in the reference video and a movement of an object in the comparison video, and
store, in the memory, a determined result for the reference and comparison videos,

receive a request for outputting analysis data based on the stored determined result, wherein the analysis data comprises posture correction information that is generated based on the determined result between the reference video and the comparison video by using a human's basic skeleton structure as a basic human body model, the human's basic skeleton structure is displayed as a line, and a human's joint is displayed as a point, and
output the analysis data on the screen,
search a match point between the reference video and the comparison video;
analyze a similarity of the searched match point; and
output analysis data on the posture shape of human when the human's basic skeleton structure is analyzed around a head portion of a human.

13. The display device of claim 12 , wherein the comparison video is obtained by taking a picture of a present scene of a subject chasing a movement of an object included in the reference video.

14. The display device of claim 12 , wherein the controller is further configured to store, in a memory, the acquired comparison video and information on the acquired comparison video.

15. The display device of claim 14 , wherein the controller is configured to:
determine a movement of an object in the reference video and a movement of an object in the comparison video; and
store, in the memory, a determined result for the reference and comparison videos.

16. The display device of claim 14 , wherein the controller is further configured to:
receive a request for displaying analysis data; and
display, on the screen, the analysis data.

17. The display device of claim 12 , wherein the controller controls to output a sound for the reference video while simultaneously outputting the reference video and the comparison video on the screen.

18. The display device of claim 12 , wherein the controller controls to:
output the reference video on a first area of the screen, and
output the

Assignees

• Lim Jung Eun
• Shin Sung Wook
• Kim Jong Chan
• Hwang In Gu
• Oh Seung Kyun
• Im Jin Seok
• Lg Electronics Inc

Inventors

• Lim Jung Eun
• Shin Sung Wook
• Kim Jong Chan
• Hwang In Gu
• Oh Seung Kyun
• Im Jin Seok

Classifications

• H04N21/4147

  PVR [Personal Video Recorder] (H04N5/76 takes precedence {; arrangements for broadcast with accumulation-type receivers H04H20/40}) · CPC title

• H04N5/781 Primary

  on disks or drums · CPC title

• H04N5/76

  Television signal recording · CPC title

• H04N21/4316

  for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window · CPC title

• H04N21/44008

  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 title