US Patent 7215375 Method for line average differences based de-interlacing

Patent 7215375 was granted and assigned to ALi Corporation on May, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

ALi Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7215375

Date of Patent

May 8, 2007

Patent Application Number

10865922

Date Filed

June 14, 2004

Patent Primary Examiner

‌

Michael H. Lee

Patent abstract

A method for line average de-interlacing decodes a picture to form macro blocks (MBs), calculates line average values to form a threshold, produces de-interlacing flags by comparing the line average values and the threshold, realizes Temporal Extension action and performs Devour action. The Temporal Extension action determines if the current de-interlace flag is set as WEAVE, determines if the flags in the same position in other flag buffers are set as BOB and sets the de-interlace flags as BOB2. The Devour action determines if the de-interlace flag is BOB. If positive, it calculates the amount of BOB data within a predetermined area around the current MB, determines if the result is smaller than the BOB threshold and sets the de-interlace flag as WEAVE. Otherwise, it calculates the amount of the WEAVE data, determines if the result is smaller than the WEAVE threshold and sets the de-interlace flag as BOB2.