Video window detection

• US 9,218,782 B2
• Filed: 11/26/2013
• Issued: 12/22/2015
• Est. Priority Date: 11/16/2011
• Status: Active Grant

• Current Assignee: STMicroelectronics International N.V. (STMicroelectronics NV)
• Original Assignee: STMicroelectronics International N.V. (STMicroelectronics NV)
• Inventors: Omprakash, Rajesh Sidana
• Primary Examiner(s): WANG, JIN CHENG
• Application Number:
  US13/998,719
• Publication Number:
  US 20140184912A1
• Time in Patent Office: 756 Days
• Field of Search: 345/629, 345/581, 345/589, 345/592, 715/781, 715/788, 715/790, 715/798, 715/799, 715/800
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04803 Split screen, i.e. subdividing the display area or the window area into separate subareas
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/20104 Interactive definition of region of interest [ROI]
• CPC Class Codes: G06V 20/62 Text, e.g. of license plates, overlay texts or captions on TV images
• CPC Class Codes: G09G 2320/0613 The adjustment depending on the type of the information to be displayed
• CPC Class Codes: G09G 2320/0686 with two or more screen areas displaying information with different brightness or colours
• CPC Class Codes: G09G 2320/103 Detection of image changes, e.g. determination of an index representative of the image change
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: G09G 5/14 Display of multiple viewports
• 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 5/144 Movement detection for video coding H04N19/503; analysis of motion in general G06T7/20

Abstract

A video window detector includes a region characteristic determiner to generate at least one characteristic value for at least one region of a display output; a characteristic map generator to generate an image map from the at least one characteristic value for at least one region of the display output; and a window detector to detect at least one video window dependent on the image map.

Claims

1. A video detection method comprising:

providing first and second video windows that overlap, the first and second video windows each playing a video therein;

using at least one of horizontal and vertical continuous edges within an overlap video region of the first and second video windows to create separations between the first and second video windows;

differentiating the first video window from the second video window based upon the separations created by at least one of the horizontal and vertical continuous edges;

determining whether the first video window overlaps the second video window or whether the second video window overlaps the first video window;

if the first video window overlaps the second video window, enhancing the video playing in the first video window and not the video playing in the second video window in the overlap video region based upon the differentiation of the first video window from the second video window, the enhancing being performance of noise reduction on the video playing in the first video window; and

if the second video window overlaps the first video window, enhancing the video playing in the second video window and not the video playing in the first video window in the overlap video region based upon the differentiation of the first video window from the second video window, the enhancing being performance of noise reduction on the video playing in the second video window.

2. The method as claimed in claim 1 wherein a horizontal continuous edge value of the overlap video region is determined.

3. The method as claimed in claim 2 wherein the horizontal continuous edge is derived by combining horizontal continuous edge values from an individual region.

4. The method as claimed in claim 1 wherein a motion value of the overlap video region is determined.

5. The method as claimed in claim 1 wherein a vertical continuous edge value of the overlap video region is determined.

6. The method as claimed in claim 5 wherein the vertical continuous edge value is derived by combining vertical continuous edge values from an individual region.

7. The method as claimed in claim 1 wherein both the horizontal continuous edge and the vertical continuous edge are used in combination to create separation between the first and second video windows.

8. The method as claimed in claim 1 wherein differentiating the first video window from the second video window includes a fine edge detection.

9. The method as claimed in claim 1 wherein differentiating the first video window from the second video window includes a pause detection.

10. The method as claimed in claim 1 wherein differentiating the first video window from the second video window includes a full screen detection.

11. The method as claimed in claim 1 wherein enhancing comprises adjusting at least one of contrast, colors, and sharpness.

12. A video detection method comprising:

providing first and second video windows, wherein the first video window overlaps the second video window, the first and second video windows each playing a video therein;

using at least one of horizontal and vertical continuous static areas within an overlap video region of the first and second video windows to create separations between the first and second video windows;

differentiating the first video window from the second video window based upon the separations created by at least one of the horizontal and vertical continuous static areas;

determining whether the first video window overlaps the second video window or whether the second video window overlaps the first video window;

if the first video window overlaps the second video window, enhancing the video playing in the first video window and not the video playing in the second video window in the overlap video region based upon the differentiation of the first video window from the second video window, the enhancing being performance of noise reduction on the video playing in the first video window; and

if the second video window overlaps the first video window, enhancing the video playing in the second video window and not the video playing in the first video window in the overlap video region based upon the differentiation of the first video window from the second video window, the enhancing being performance of noise reduction on the video playing in the first video window.

13. The method as claimed in claim 12 wherein a motion value of the overlap video region is determined.

14. The method as claimed in claim 12 wherein a horizontal continuous static value of the overlap video region is determined.

15. The method as claimed in claim 14 wherein the horizontal continuous static area is derived by combining horizontal continuous static area values from an individual region.

16. The method as claimed in claim 12 wherein a vertical continuous static value of the overlap video region is determined.

17. The method as claimed in claim 16 wherein the vertical continuous static area is derived by combining vertical continuous static area values from an individual region.

18. The method as claimed in claim 12 wherein both the horizontal continuous static area and the vertical continuous static area are used in combination to create separation between the first and second video windows.

19. The method as claimed in claim 12 wherein differentiating the first video window from the second video window includes a fine edge detection.

20. The method as claimed in claim 12 wherein differentiating the first video window from the second video window includes a pause detection.

21. The method as claimed in claim 12 wherein differentiating the first video window from the second video window includes a full screen detection.