Invention Application
- Patent Title: METHOD AND APPARATUS FOR VARIABLE ACCURACY INTER-PICTURE TIMING SPECIFICATION FOR DIGITAL VIDEO ENCODING
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Application No.: US14929145Application Date: 2015-10-30
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Publication No.: US20160073128A1Publication Date: 2016-03-10
- Inventor: Barin Geoffry Haskell , David William Singer , Adriana Dumitras , Atul Puri
- Applicant: APPLE INC.
- Main IPC: H04N19/513
- IPC: H04N19/513 ; H04N19/91 ; H04N19/61 ; H04N19/46 ; H04N19/577 ; H04N19/587

Abstract:
A method and apparatus for variable accuracy inter-picture timing specification for digital video encoding is disclosed. Specifically, the present invention discloses a system that allows the relative timing of nearby video pictures to be encoded in a very efficient manner. In one embodiment, the display time difference between a current video picture and a nearby video picture is determined. The display time difference is then encoded into a digital representation of the video picture. In a preferred embodiment, the nearby video picture is the most recently transmitted stored picture. For coding efficiency, the display time difference may be encoded using a variable length coding system or arithmetic coding. In an alternate embodiment, the display time difference is encoded as a power of two to reduce the number of bits transmitted.
Public/Granted literature
- US09516337B2 Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding Public/Granted day:2016-12-06
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