Invention Grant
US08259819B2 Method and apparatus for improving video quality by utilizing a unified loop filter
有权
利用统一的环路滤波器提高视频质量的方法和装置
- Patent Title: Method and apparatus for improving video quality by utilizing a unified loop filter
- Patent Title (中): 利用统一的环路滤波器提高视频质量的方法和装置
-
Application No.: US12635383Application Date: 2009-12-10
-
Publication No.: US08259819B2Publication Date: 2012-09-04
- Inventor: Yu Liu , Yan Huo , Ka Man Cheng
- Applicant: Yu Liu , Yan Huo , Ka Man Cheng
- Applicant Address: CN Hong Kong Science Park, Shatin, New Territories, Hong Kong
- Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
- Current Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
- Current Assignee Address: CN Hong Kong Science Park, Shatin, New Territories, Hong Kong
- Agency: Ella Cheong Hong Kong
- Agent Margaret A. Burke; Sam T. Yip
- Main IPC: H04N11/02
- IPC: H04N11/02
Abstract:
The present invention relates to method and apparatus for improving video quality. The present invention provides a unified loop filter including: a pixel determining unit which determines the type of a pixel based on boundary strength; a similarity transforming unit which transforms a nonlinear filter into a nonlinear similarity-ordered statistics filter; and an integrating unit which integrates the nonlinear similarity-ordered statistics filter with a linear image filtering portion. The unified loop filter is applicable to filter reconstructed frames when an encoder or a decoder is processing a video signal.
Public/Granted literature
- US20110142136A1 METHOD AND APPARATUS FOR IMPROVING VIDEO QUALITY Public/Granted day:2011-06-16
Information query
