Invention Grant
- Patent Title: Order value for specifying relationship between video pictures
- Patent Title (中): 用于指定视频图像之间关系的顺序值
-
Application No.: US11835727Application Date: 2007-08-08
-
Publication No.: US08094724B2Publication Date: 2012-01-10
- Inventor: Barin Geoffry Haskell , David William Singer , Adriana Dumitras , Atul Puri
- Applicant: Barin Geoffry Haskell , David William Singer , Adriana Dumitras , Atul Puri
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Adeli & Tollen LLP
- Main IPC: H04B1/66
- IPC: H04B1/66

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
- US20070274677A1 Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding Public/Granted day:2007-11-29
Information query