Object boundaries identified in a raster image by a user selecti

Details Object boundaries identified in a raster image by a user selecti Object boundaries identified in a raster image by a user selecti

1997-03-28

2000-02-15

Brier, Jeffery

Computer graphics processing and selective visual display system

Computer graphics processing

Shape generating

345145, G06T 1100, G09G 508

Patent

active

060258500

ABSTRACT:
A computer-implemented method identifies a boundary path of an object in a displayed raster image by sampling user input to define cursor positions in the raster image and to determine tunnel width parameters corresponding to the cursor positions. The boundary path is identified by applying a cost function that evaluates pixel values of pixels the raster image within limits defined by the tunnel width parameters and determines pixels defining the boundary path.

REFERENCES:
patent: 5475507 (1995-12-01), Suzuki et al.
patent: 5588100 (1996-12-01), Parker
patent: 5598182 (1997-01-01), Berend et al.
patent: 5608856 (1997-03-01), McInally
patent: 5617491 (1997-04-01), Roth
patent: 5694535 (1997-12-01), Broekhuijsen
patent: 5754180 (1998-05-01), Kivolowitz et al.
Kass et al., "Snakes: Active Contour Models", International Journal of Computer Vision, 321-331 (1988).
Geiger et al., "Dynamic Programming for Detecting, Tracking, and Matching Deformable Contours", IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 17, No. 3, 294-302 ( Mar. 1995).
Williams et al., "A Fast Algorithm for Active Contours and Curvature Estimation", CVGIP: Image Understanding vol. 55, No. 1, 14-26 (Jan. 1992).
Mortensen et al., "Intelligent Scissors for Image Composition", Computer Graphics Proceedings, Annual Conference Series, 191-198 (1995).

Affiliated with

Also associated with

Rating

Object boundaries identified in a raster image by a user selecti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Object boundaries identified in a raster image by a user selecti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Object boundaries identified in a raster image by a user selecti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1909657