A feature based approach to re-engineering objects of freeform design by exploiting point cloud morphology

Stamati, Vasiliki; Fudos, Ioannis

doi:10.1145/1236246.1236296

Cited by 15 publications

(8 citation statements)

References 8 publications

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“…An exhaustive overview of 3D mesh segmentation methodologies examining their suitability for CAD models is presented in [18]. A combination of the techniques described in [19], [20] and [21] is employed to detect and extract regions in the point cloud corresponding to feature components and their boundary regions. Such an example is illustrated in Figure 53.…”

Section: The Reconstruction Processmentioning

confidence: 99%

A parametric feature-based approach to reconstructing traditional filigree jewelry

Stamati

Antonopoulos

Azariadis

et al. 2011

Computer-Aided Design

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Section: The Reconstruction Processmentioning

confidence: 99%

A parametric feature-based approach to reconstructing traditional filigree jewelry

Stamati

Antonopoulos

Azariadis

et al. 2011

Computer-Aided Design

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“…To detect feature regions in a point cloud we built on a method [17] developed earlier for reverse engineering based on discovering features on the point cloud by detecting local changes in the morphology of the point cloud. We use region growing, detection of rapid variations of the surface normal and the concavity intensity, i.e.…”

Section: Feature-based Morphingmentioning

confidence: 99%

Feature-based 3D morphing based on geometrically constrained sphere mapping optimization

Athanasiadis

Fudos

Nikou

et al. 2010

Proceedings of the 2010 ACM Symposium on Applied Computing

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Current trends in free form editing suggest the development of a new novel editing paradigm for CAD models beyond traditional CAD editing of mechanical parts. To this end we wish to develop accurate, robust and efficient 3D mesh deformation techniques such as 3D structural morphing.In this paper, we present a feature-based approach to 3D morphing of arbitrary genus-0 polyhedral objects that is appropriate for CAD editing. The technique is based on a sphere mapping process built on an optimization technique that uses a target function to maintain the correspondence among the initial polygons and the mapped ones while preserving topology and connectivity through a system of geometric constraints. Finally, we introduce a fully automated feature-based technique that matches surface areas (feature regions) with similar morphological characteristics between the two morphed objects and performs morphing according to this feature correspondence list. Alignment is obtained without user intervention and is based on pattern matching between the feature graphs of the two morphed objects.

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“…In [12] we present a feature-based approach to re-engineering freeform objects from point clouds obtained by 3D laser scanners. This approach is based on discovering features on the point cloud by detecting local changes in the morphology of the point cloud.…”

Section: Preliminariesmentioning

confidence: 99%

On Reconstructing 3D Feature Boundaries

Stamati¹,

Fudos²

2008

Computer-Aided Design and Applications

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Raw point data collected by 3D scanning techniques are usually rendered by building an interpolating robust polygonal mesh. This approach is accurate and fast but provides no means for large scale subsequent modifications. Only local interactive or non-interactive tools are provided that are usually targeted to correcting small imperfections and eliminating noise effects. CAD applications require robust and editable CAD models to support processes such as reproduction, design modification and redesign. In this paper we present a curve approximation method used in a feature-based approach to building feature-based CAD models from 3D point clouds. This approach is based on discovering features on the point cloud by detecting local changes in the morphology of the point cloud. This results in a number of regions that represent object features. The boundaries of the features are approximated by a collection of piecewise cubic rational Bezier curves that best fit the detected border point cloud and are G1 continuous.

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A feature based approach to re-engineering objects of freeform design by exploiting point cloud morphology

Cited by 15 publications

References 8 publications

A parametric feature-based approach to reconstructing traditional filigree jewelry

A parametric feature-based approach to reconstructing traditional filigree jewelry

Feature-based 3D morphing based on geometrically constrained sphere mapping optimization

On Reconstructing 3D Feature Boundaries

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