Invention Application
US20170054994A1 METHOD AND APPARATUS FOR VARIABLE ACCURACY INTER-PICTURE TIMING SPECIFICATION FOR DIGITAL VIDEO ENCODING
审中-公开
用于数字视频编码的可变精度互联时序规范的方法和装置
- Patent Title: METHOD AND APPARATUS FOR VARIABLE ACCURACY INTER-PICTURE TIMING SPECIFICATION FOR DIGITAL VIDEO ENCODING
- Patent Title (中): 用于数字视频编码的可变精度互联时序规范的方法和装置
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Application No.: US15340976Application Date: 2016-11-01
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Publication No.: US20170054994A1Publication Date: 2017-02-23
- Inventor: Barin Geoffry Haskell , David William Singer , Adriana Dumitras , Atul Puri
- Applicant: Apple Inc.
- Main IPC: H04N19/513
- IPC: H04N19/513 ; H04N19/43 ; H04N19/577 ; H04N19/176

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
- US09838707B2 Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding Public/Granted day:2017-12-05
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