Video processing system for modifying a zone in successive image

Details Video processing system for modifying a zone in successive image Video processing system for modifying a zone in successive image

1994-05-27

1995-07-25

Groody, James J.

Television

Image signal processing circuitry specific to television

Special effects

348584, 348169, H04N 5265

Patent

active

054366720

ABSTRACT:
A method and an apparatus for substituting a representation of a target, identified by a set of points of interest stored in a memory, with a matching representation of a predetermined stored pattern in successive TV frames are described. The apparatus has a buffer for storing successive frames of a sequence, constituting a first in-first out memory having a length sufficient for storing all frames over a period of some seconds. Points of interest in each current frame are extracted and an attempt is made to find at least a subset of the extracted points of interest matching with a respective subset of the stored set. Global motion of the image between successive frames is evaluated and the location of the target in the frames following and preceding a frame in which the pattern is found is predicted. A target finder locates the target in the frames where it is found, based on the prediction. Each partial or complete representation of the target in each frame, where found, is replaced with a representation of the stored pattern after the stored pattern has been subjected to size and perspective transformation computed from a comparison between the points of interest in the representation of the target in the respective frame and the respective stored points of interest.

REFERENCES:
patent: 5264933 (1993-11-01), Rosser et al.
patent: 5274453 (1993-12-01), Maeda

Affiliated with

Also associated with

Rating

Video processing system for modifying a zone in successive image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video processing system for modifying a zone in successive image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video processing system for modifying a zone in successive image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-743109