Invention Grant
- Patent Title: Joint frame rate and resolution adaptation
- Patent Title (中): 联合帧速率和分辨率适应
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Application No.: US13018298Application Date: 2011-01-31
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Publication No.: US09215466B2Publication Date: 2015-12-15
- Inventor: Jiefu Zhai , Xiaosong Zhou , Hsi-Jung Wu
- Applicant: Jiefu Zhai , Xiaosong Zhou , Hsi-Jung Wu
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kenyon & Kenyon LLP
- Main IPC: H04N7/32
- IPC: H04N7/32 ; H04N19/156 ; H04N19/61 ; H04N19/126 ; H04N19/146

Abstract:
A video coder employs techniques for applying frame rate adaptation and variable resolution adaptation in response to environmental coding factors present at the coding terminal. According to such techniques, a coder may estimate a coding quality level to be applied based on the environmental coding factors. The coder may retrieve from a controller table, settings for resolution and frame rate based on the estimated quality level. Optionally, the coder further may retrieve settings identifying a range of quantization parameters that may be used during coding. Prior to coding, the coder may configure input video data to match the resolution and frame rate settings retrieved from the controller table. Thereafter, the coder may code the reconfigured input video data by motion-compensation prediction constrained, as applicable, by the retrieved quantization parameter range.
Public/Granted literature
- US20120195372A1 JOINT FRAME RATE AND RESOLUTION ADAPTATION Public/Granted day:2012-08-02
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