IP Library › Granted Patent US 7,058,227
Granted Patent B2
US 7,058,227 · App. 10/196,817 · Granted Jun 6, 2006

Problem area location in an image signal

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Quick Facts
Patent No.
US 7,058,227
App. No.
10/196,817
Granted
Jun 6, 2006
Kind
B2
Abstract

In a method of locating problem areas in an image signal (I), a motion vector field (Df) is estimated for the image signal (I), and edges are detected in the motion vector field (Df). In a corresponding method of interpolating images between existing images (I), image parts are interpolated (MCI) in dependence upon a presence of edges; preferably, an order statistical filtering (med) is used at edges.

Claims (8)

1. A method of locating problem areas in an image signal, the method comprising the steps:

estimating a motion vector field for said image signal;

detecting edges in the motion vectors field; and

comparing edge locations in successive field periods to identify both foreground and background.

2. A device for locating problem areas in an image signal, the device comprising:

means for estimating a motion vector field for said image signal; and

means for detecting edges in the motion vector field, wherein said device comprises:

means for comparing edge locations in successive field periods to identify both foreground and background.