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:
May. 14, 2002
Filed:
Sep. 10, 1997
Applicant:
Inventor:
Gerhard Wischermann, Weiterstadt, DE;
Assignee:
BTS Holdings International B.V., Breda, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/409 ; G06R 4/40 ; G06T 5/00 ;
U.S. Cl.
CPC ...
H04N 1/409 ; G06R 4/40 ; G06T 5/00 ;
Abstract
A video signal-processing device, for example a film scanner, including an arrangement for detecting scratches in images of a video signal. To improve the detection of slant scratches, the arrangement for detecting scratches combines a given number (m) of series-arranged pixels ( ) of a video image to form a group ( ), and to determine a division of the pixels in accordance with given criteria for each group of pixels and, based on this division, to classify the pixel groups in scratch sections and non-scratch sections.