The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 2021
Filed:
Mar. 06, 2019
Peking University Shenzhen Graduate School, Shenzhen, CN;
Ronggang Wang, Shenzhen, CN;
Zhenyu Wang, Shenzhen, CN;
Xi Xie, Shenzhen, CN;
Wen Gao, Shenzhen, CN;
PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL, Shenzhen, CN;
Abstract
The present application provides methods, systems, devices and computer-readable mediums for deblocking filter. A method of the present application comprises: determining a filtering boundary, and then determining a filter pixel group based on the filtering boundary; determining a filter strength of the filter pixel group, comprising: parsing separately a pixel value difference states of pixel points on both sides of the filtering boundary in the filter pixel group to obtain two one-sided flatness FL and FR; calculating a comprehensive flatness FS of the filter pixel group, wherein FS=FL+FR; calculating the filter strength according to FS; filtering calculation of pixel points included in the filter pixel group according to the filter strength. Compared with the prior art, the method of the embodiment of the present invention fully considers the pixel value change state of the pixel points on both sides of the filtering boundary, so that a more reasonable filter strength judgment condition is adopted when determining the filter strength of the filter pixel group, thereby finally obtaining a more realistic deblocking filter result.