Image analysis – Image compression or coding – Contour or chain coding
Patent
1997-06-03
2000-02-22
Couso, Jose L.
Image analysis
Image compression or coding
Contour or chain coding
G06K 936
Patent
active
060289643
ABSTRACT:
A method for encoding an input image including more than an object is provided, wherein if number of contours in an image frame is less than a predetermined number, all the absolute addresses of the initial vertices of the contours are encoded. However, if the number of the contours are greater than or equal to the predetermined number, the contours are divided into a plurality of groups, wherein if a position of an initial vertex in a group is known, relative displacements of all the other vertices in the group can be represented by dynamic ranges determined by the number of the contours. Thereafter, absolute position information of a first initial vertex in each group is encoded using an escape code which is followed by the horizontal and the vertical absolute addresses of the initial vertex. All the remaining initial vertices are encoded based on their displacements from the previously encoded initial vertex and the dynamic ranges. The escade-coded data and the displacement coded data are provided as the encoded initial vertex data.
REFERENCES:
patent: 5497435 (1996-03-01), Berger
patent: 5592228 (1997-01-01), Dachiku et al.
patent: 5598215 (1997-01-01), Watanabe
patent: 5668608 (1997-09-01), Lee
patent: 5691769 (1997-11-01), Kim
patent: 5757971 (1998-05-01), Kim
patent: 5774595 (1998-06-01), Kim
patent: 5870501 (1999-02-01), Kim
Couso Jose L.
Daewoo Electronics Co. Ltd.
LandOfFree
Method and apparatus for coding multiple contours within a frame does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for coding multiple contours within a frame, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for coding multiple contours within a frame will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-527100