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:
Sep. 08, 1981
Filed:
Mar. 14, 1980
Barry D Miles, Newbury, GB;
Quantel Limited, Berkshire, GB;
Abstract
A video movement detector suitable for detecting picture movement and/or noise on a video signal. A first detector detects differences frame by frame on a portion of picture having a plurality of picture points from more than one line. A second detector detects differences frame by frame from a portion of picture having a plurality of picture points from the same line, and a third detector detects differences frame by frame from a portion of a picture comprising a single picture point. Movement is determined to have taken place when the differences measured by the respective detectors exceed predetermined thresholds. The selected thresholds are typically of different values to provide the capability of distinguishing between noise and movement in varying conditions. The movement detection arrangement can be used to control picture manipulation during processing such as in a noise reduction system, standards conversion or picture size change arrangements.