Curvature smoothing

Details Curvature smoothing Curvature smoothing

1997-06-25

2000-08-08

Powell, Mark R.

Computer graphics processing and selective visual display system

Computer graphics processing

Shape generating

G06F 1724

Patent

active

061009040

ABSTRACT:
A system generates a smoothed curve from a noisily drawn, multi-segmented curve by solving a smoothing function for a transposed curve which fits between end-points of the drawn curve. The transposed curve has an energy value related to the length of the transposed curve. The energy value has two components: a distortion factor and a smoothing factor. Numerical analysis methods are applied to evaluate the smoothing function and to identify the transposed curve with the lowest energy. The transposed curve with the lowest energy value is selected as the smoothed curve.

REFERENCES:
patent: 5594853 (1997-01-01), Salesin et al.
A. Blake, et al., "Weak Continuity Constraints Generate Uniform Scale-Space Descriptions of Plane Curves" Dept. Of Computer Science, Scotland, (date unavailable).
Andrew Blake, et al., Visual Reconstruction, Chapter 2 (Applications of Piecewise Continuous Reconstruction), 1987, pp. 16-36.
Projective Solutions, Inc., ScanLab manual, Apr. 8, 1990.
Adobe Systems, Inc., "Technical Note #5012", The Type 42 Font Format Specification, Mar. 1, 1993.
Adobe Systems, Inc., "Technical Note #5092", CID-Keyed Font Technology Overview, Sep. 12, 1994.
Adobe Systems, Inc., "Technical Specification #5014, Version 1.0", Adobe CMap and CIDFont Files Specification, Oct. 16, 1995.
Richard L. Burden, et al., Numerical Analysis, Second Edition, Chapter 9 (Numerical Solutions of Nonlinear Systems of Equations), 1981, pp. 439-461.
B. Bascle and R. Deriche., "Stereo Matching, Reconstruction and Refinement of 3D Curves Using Deformable Contours", Computer Vision, 1993, pp. 421-430.

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