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:
Nov. 11, 2008
Filed:
Dec. 29, 2004
David M. Baylon, San Diego, CA (US);
Kevin M. Mckoen, San Diego, CA (US);
David M. Baylon, San Diego, CA (US);
Kevin M. McKoen, San Diego, CA (US);
General Instrument Corporation, Horsham, PA (US);
Abstract
A () method and apparatus () for determining a scanning format of a frame of a video signal determines () if any interfield motion exists within the frame; and indicates () that the frame is interlaced scanned if interfield motion is detected and indicates () that the frame is progressive scanned if interfield motion is not detected. The determination is based on spatial correlation within and around one or more edges of one or more objects in the frame. This can be accomplished by identifying zig-zag or zipper effects near one or more edges of one or more objects in the frame, identifying motion between fields or identifying motion near one or more edges of one or more objects. A method () for determining a field order of two interlaced frames of a video sequence of frames assigns () one of the two interlaced frames to be a first frame and the other of the two interlaced frames to be a second frame and assembles () two new frames from the two interlaced frames by combining a bottom field of the first frame with the top field of the second frame and by combining a top field of the first frame with a bottom field of the second frame. The number of zipper points in each of the two new frames is then determined and compared. If the number of zipper points in the first frame is smaller than the number of zipper points in the second frame, that the field order of the two frames is top field first, otherwise the field order is bottom field first.