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Segmentation of three dimensional images

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2 Author(s)
Snyder, W. ; North Carolina State University, Raleigh, NC ; Bilbro, G.

In this paper, we describe the fundamental differences between three-dimensional (range) images and two-dimensional (luminance) images. A number of problems arise which are unique to range data, including in particular a strong sensitivity to quantization effects. Although range images and luminance images are both arrays of scalars, the range image conceptually represents a surface in space and cannot be naively manipulated using the conventional image processing functions such as 3 × 3 convolution kernels. If the range data are regarded as a sampling of a surface parametrized by the focal plane coordinates, it is possible to find a representation for the surface normal and for the surface curvature in terms of familiar-looking convolution kernels.

Published in:

Robotics and Automation. Proceedings. 1985 IEEE International Conference on  (Volume:2 )

Date of Conference:

Mar 1985