FREQUENCY ANALYSIS FOR UNORGANIZED POINT CLOUDS

概要

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We propose a new filtering method to achieve realtime computer graphics of precise 3D shapes. By recent 3D scanning systems, it becomes possible to measure 3D shape of objects with high precision. Normally these scanners sample 3D positions of points (point clouds) on the surface of objects so that we must build polygon model before synthesizing surface-rendered computer graphics. Increase of measurement data by progress of recent 3D scanning systems, however, makes cost of creation of polygon model higher. Thus non-surface rendering including point rendering techniques are focused on. To achieve high-quality point rendering of objects scanned by such 3D scanners, we must perform some kind of filtering on obtained data since point data obtained by 3D scanner is often irregularly formed and also has non-uniform density. We have achieved one of such filtering by applying resampling and frequency analysis on point clouds.
社団法人電子情報通信学会の論文
2003-01-14