The identification of non-regular points is important in many applications involving point clouds or triangular meshes, such as segmentation, inspection and rendering. The methods presented in literature have some limitations which make them dependent on some properties of the mesh (point typology, mesh resolution, uniformity of the shape of triangles and error in point location). Furthermore, some of them do not discriminate non-regular points from those that are inside a band around them. In this work, a new method for automatic detection of non-regular points in triangular meshes is presented. The method introduces an original function, called sharp function, which enables us to evaluate properties related to surface smoothness and to define a detector of non-regular points. The new method is verified in the recognition of nonregular points in synthetic and real meshes, some of which have been used in other works described in literature. Results are analysed and critically discussed.
A new method for automatic detection of non-regular points in triangular meshes
DI ANGELO, LUCA;DI STEFANO, PAOLO
2009-01-01
Abstract
The identification of non-regular points is important in many applications involving point clouds or triangular meshes, such as segmentation, inspection and rendering. The methods presented in literature have some limitations which make them dependent on some properties of the mesh (point typology, mesh resolution, uniformity of the shape of triangles and error in point location). Furthermore, some of them do not discriminate non-regular points from those that are inside a band around them. In this work, a new method for automatic detection of non-regular points in triangular meshes is presented. The method introduces an original function, called sharp function, which enables us to evaluate properties related to surface smoothness and to define a detector of non-regular points. The new method is verified in the recognition of nonregular points in synthetic and real meshes, some of which have been used in other works described in literature. Results are analysed and critically discussed.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.