System and method for dynamically changing quality levels among a plurality of video scenes

• US 8,451,909 B1
• Filed: 12/21/2009
• Issued: 05/28/2013
• Est. Priority Date: 12/23/2008
• Status: Active Grant

• Current Assignee: Verint Americas Incorporated (Verint Systems Incorporated)
• Original Assignee: Verint Americas Incorporated (Verint Systems Incorporated)
• Inventors: Johnson, Alexander Steven, Lamontagne, Marc-Antoine, Whiffen, Mark
• Primary Examiner(s): Jiang, Charles C
• Application Number:
  US12/643,559
• Time in Patent Office: 1,254 Days
• Field of Search: 37524001-24029
• US Class Current: 375/240.26
• CPC Class Codes: H04N 21/21805 enabling multiple viewpoints, e.g. using a plurality of cameras
• CPC Class Codes: H04N 21/4312 involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
• 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 21/4347 Demultiplexing of several video streams
• 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 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 21/440254 by altering signal-to-noise parameters, e.g. requantization
• CPC Class Codes: H04N 21/440263 by altering the spatial resolution, e.g. for displaying on a connected PDA
• CPC Class Codes: H04N 21/440281 by altering the temporal resolution, e.g. by frame skipping television signal recording using magnetic recording on tape for reproducing at a rate different from the recording rate H04N5/783
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources

Abstract

A method for operating a video system is provided. The method includes receiving video data of a first scene and a second scene, processing at least a first portion of the video data to generate a first video of the first scene having a first quality level, processing at least a second portion of the video data to generate a second video of the second scene having a second quality level, and processing at least a third portion of the video data to detect an occurrence of an event in the first scene. In response to detecting the occurrence of the event in the first scene, the method continues by processing at least a fourth portion of the video data to generate a third video of the first scene at a third quality level, where the third quality level is different than the first quality level, and transferring the third video for display.

Claims

1. A method of operating a video processing system, the method comprising:

receiving video data comprising a first scene and a second scene from a video capture device;

processing at least a first portion of the video data to generate a first video comprising the first scene and having a first quality level in the video processing system;

processing at least a second portion of the video data to generate a second video comprising the second scene and having a second quality level in the video processing system;

processing at least a third portion of the video data to detect an occurrence of an event in the first scene in the video processing system;

in response to detecting the occurrence of the event in the first scene, processing at least a fourth portion of the video data to generate a third video comprising the first scene and having a third quality level in the video processing system, wherein the third quality level is different than the first quality level;

combining the first video at the first quality level, the second video at the second quality level, and the third video at the third quality level into a tiled video in the video processing system, wherein the first video and second video have a first size and the third video has a second size, wherein the second size is larger than the first size; and

transferring the tiled video for display.

2. The method of claim 1, further comprising:

transferring the second video for display simultaneously with transferring the third video for display.

3. The method of claim 1,

wherein the first quality level comprises a first compression level, the second quality level comprises a second compression level, and the third quality level comprises a third compression level;

and

wherein the third compression level is less than the first compression level.

4. The method of claim 1,

wherein the first quality level comprises a first frame rate, the second quality level comprises a second frame rate, and the third quality level comprises a third frame rate;

and

wherein the third frame rate is greater than the first frame rate.

5. The method of claim 1,

wherein the first quality level comprises a first color space, the second quality level comprises a second color space, and the third quality level comprises a third color space;

and

wherein the third color space is larger than the first color space.

6. The method of claim 1,

wherein the first event is motion within the first scene.

7. The method of claim 1,

wherein the first event is a presence of an object of interest within the first scene.

8. The method of claim 1,

wherein the first event is a presence of an object of interest within a selected region within the first scene.

9. The method of claim 1,

wherein the first event is an absence of an object of interest within a selected region within the first scene.

10. A video processing system comprising:

a communication interface configured to receive video data comprising a first scene and a second scene; and

a processor configured to;

process at least a first portion of the video data to generate a first video comprising the first scene and having a first quality level;

process at least a second portion of the video data to generate a second video comprising the second scene and having a second quality level;

process at least a third portion of the video data to detect an occurrence of an event in the first scene;

in response to detecting the occurrence of the event in the first scene, process at least a fourth portion of the video data to generate a third video comprising the first scene and having a third quality level, wherein the third quality level is different than the first quality level;

combine the first video at the first quality level, the second video at the second quality level, and third video at the third quality level into a tiled video, wherein the first and second videos have a first size, and the third video has a second size, wherein the second size is larger than the first size; and

transfer the tiled video through the communication interface for display.

11. The video processing system of claim 10, wherein the processor is also configured to transfer the second video through the communication interface for display simultaneously with transferring the third video through the communication interface for display.

12. The video processing system of claim 10,

wherein the first quality level comprises a first compression level, the second quality level comprises a second compression level, and the third quality level comprises a third compression level;

and

wherein the third compression level is less than the first compression level.

13. The video processing system of claim 10,

wherein the first quality level comprises a first frame rate, the second quality level comprises a second frame rate, and the third quality level comprises a third frame rate;

and

wherein the third frame rate is greater than the first frame rate.

14. The video processing system of claim 10,

wherein the first quality level comprises a first color space, the second quality level comprises a second color space, and the third quality level comprises a third color space;

and

wherein the third color space is larger than the first color space.

15. The video processing system of claim 10,

wherein the first event is motion within the first scene.

16. The video processing system of claim 10,

wherein the first event is a presence of an object of interest within the first scene.

17. The video processing system of claim 10,

wherein the first event is a presence of an object of interest within a selected region within the first scene.

18. The video processing system of claim 10,

wherein the first event is an absence of an object of interest within a selected region within the first scene.