Method and system for video clip compression

Patent 7612832 Issued on November 3, 2009. Estimated Expiration Date:

March 29, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventors

Assignee

Microsoft Corporation

Application

No. 11092389 filed on 03/29/2005

US Classes:

348/700Motion dependent key signal generation or scene change detection

Examiners

Primary: Tran, Thai
Assistant: Khan, Asher

Attorney, Agent or Firm

WESTMAN, CHAMPLIN & KELLY, P.A.

Foreign Patent References

WO 9951022 WO 10/01/1999

International Classes

H04N 9/64
H04N 7/12

Abstract

In a method for compressing a video clip containing audio content and image content, an image and/or an audio portion of individual video frames of the video clip are analyzed. Next frame scores are calculated for the video frames. Each frame score is based on at least one image attribute of the image of the video frame, and/or an audio attribute of the audio portion of the video frame. Next, key frames are identified that have a frame score that exceeds a threshold frame score. Finally, a compressed video clip is formed in which the images of non-key frames are removed. A system for implementing the method is also disclosed.