Range-image processing apparatus and method

Details Range-image processing apparatus and method Range-image processing apparatus and method

1993-12-01

1996-04-02

Nguyen, Phu K.

G06F 1572

Patent

active

055048471

ABSTRACT:
Plural range images having different resolutions are generated from an input range image and normal vectors are calculated for each generated range image. An edge map is formed for each of the plural range images based on the calculated normal vectors and a single edge map is formed by synthesizing the plural formed edge maps. Polygon data describing the surface shape of an object represented by the input range image are formed based on the synthesized edge map. Polygon data of high precision that represents characteristics of the surface shape of the object is thereby formed with little data.

REFERENCES:
patent: 5369736 (1994-11-01), Kato et al.
"Integration of Synthetic Surface Relief in Range Image" By P. Boulanger et al.; Computer Vision Graphics And Image Processing; vol. 47; No. 3; Sep., 1989, New York, US; pp. 361-372.
"Extracttion of Polygonal Faces in Range Images" by B. Groshong et al.; Topical Meeting On Machine Vision; Mar. 1985 USA; pp. 1-4.
"Generation of 3D Surface Descriptions from Images of Pattern-Illuminated Objects" by Michael Potmesil; Proceedings Of The 1979 IEEE Computer Society Conference On Pattern Recognition And Image Processing; Aug. 6, 1979; New York, US; pp. 553-560.
"Range Data Processing; Representation of Surfaces by Edges" by Bhanu et al; Eighth Int'l Conf. On Pattern Recognition (Proceedings); 1986 FR. pp. 236-238.
"Invariant Surface Segmentation through Energy Minimization With Discontinuities"; International Journal Of Computer Vision; vol. 5, No. 2, Nov. 1990 NL. pp. 161-194.

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