Efficient distance estimation for fitting implicit quadric surfaces
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Accurate and efficient rendering of detail using directional distance maps
Proceedings of the Eighth Indian Conference on Computer Vision, Graphics and Image Processing
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Geometric property estimation of the scattered point data is a key task in reverse engineering. A common approach is to estimate the local surface geometric properties, such as normal vectors and curvatures, at each point by locally fitting a low order parametric polynomial surface to a neighborhood of its nearest points. However, existing parametric surface methods do not always achieve satisfactory estimates because of theoretical and practical reasons. Motivated by improving geometric properties estimation we propose a novel approach based on local quadric surface fitting. Experimental results are presented to verify the feasibility of the proposed method.