Method and device for extracting features from gray-scale image

Details Method and device for extracting features from gray-scale image Method and device for extracting features from gray-scale image

1997-07-17

2000-03-21

Johns, Andrew W.

Image analysis

Pattern recognition

Feature extraction

382203, G06K 962

Patent

active

060411384

ABSTRACT:
A method of extracting features from a gray-scale image includes the steps of generating polygons which approximate a curved surface represented by the gray-scale image, and extracting features with respect to common edges of adjoining polygons. The method further includes the step of generating boundaries of document elements based on the features.

REFERENCES:
patent: 5621827 (1997-04-01), Uchiyama et al.
patent: 5629752 (1997-05-01), Kinjo
patent: 5774585 (1998-06-01), Haring
patent: 5774596 (1998-06-01), Kim
patent: 5920648 (1999-07-01), Fujimoto
L. De Floriani, "A Pyramidal Data Structure for Triangle-Based Surface Description", IEEE Computer Graphics and Applications, vol. 9, Mar. 1989, pp. 67-78.
T. Pavlidis, et al., "Sampling and Quantization of Bilevel Signals", Pattern Recognition Letters, vol. 14, No. 7, Jul. 1993, pp. 559-562.
L. Wang, et al., "Direct Gray-Scale Extraction of Features for Character recognition", IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 15, No. 10, Oct. 1993, pp. 1053-1067.

Affiliated with

Also associated with

Rating

Method and device for extracting features from gray-scale 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 Method and device for extracting features from gray-scale image , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for extracting features from gray-scale image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-736584