Invention Grant
- Patent Title: Sub-picture hierarchical QP coding
- Patent Title (中): 子图像分层QP编码
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Application No.: US13768426Application Date: 2013-02-15
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Publication No.: US09277214B2Publication Date: 2016-03-01
- Inventor: Thomas Davies
- Applicant: CISCO TECHNOLOGY, INC.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Lempia Summerfield Katz LLC
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N19/124 ; H04N19/157 ; H04N19/174
Abstract:
A method including: dividing a first video frame into a predetermined plurality of regions; assigning a quantization parameter to each of the predetermined plurality of regions in accordance with a first predetermined pattern of quantization parameters, the quantization parameters not being all the same; dividing video frames, subsequent to the first video frame, into the predetermined plurality of regions; and assigning a quantization parameter to each of the predetermined plurality of regions in the video frames subsequent to the first video frame, in accordance with another predetermined pattern, different from the first predetermined pattern.
Public/Granted literature
- US20140233635A1 SUB-PICTURE HIERARCHICAL QP CODING Public/Granted day:2014-08-21
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