Easy Mesh Cutting

Ji, Zhongping; Liu, Ligang; Chen, Zhonggui; Wang, Guojin

doi:10.1111/j.1467-8659.2006.00947.x

Cited by 94 publications

(119 citation statements)

References 29 publications

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“…It is a critical step toward content analysis and mesh understanding. Although some supervised methods exist [12,16], most existing techniques are fully automatic.…”

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confidence: 99%

A comparative study of existing metrics for 3D-mesh segmentation evaluation

et al. 2010

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In this paper, we present an extensive experimental comparison of existing similarity metrics addressing the quality assessment problem of mesh segmentation. We introduce a new metric named the 3D Normalized Probabilistic Rand Index (3D-NPRI) which outperforms the others in terms of properties and discriminative power. This comparative study includes a subjective experiment with human observers and is based on a corpus of manually segmented models. This corpus is an improved version of our previous one [4]. It is composed of a set of 3D-mesh models grouped in different classes associated with several manual ground-truth segmentations. Finally the 3D-NPRI is applied to evaluate six recent segmentation algorithms using our corpus and the Chen's et al. [7] corpus.

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“…It is a critical step toward content analysis and mesh understanding. Although some supervised methods exist [12,16], most existing techniques are fully automatic.…”

mentioning

confidence: 99%

A comparative study of existing metrics for 3D-mesh segmentation evaluation

et al. 2010

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“…The objects are mainly characterised by the modification of a three-dimensional object through a specific interface to obtain a specific result. The works based on these techniques allow these surfaces to be doubled [74,75,76,77,78], and twisted [79], silhouettes to be modified [80,81], segmentation [76,82], free deformation [83] and finally have the affine transformations applied [84]. There are also works in which character animation is carried out by this type of technique [75].…”

Section: Fig 19 Last Model E Basementioning

confidence: 99%

Footwear bio-modelling: An industrial approach

Davia

Jimeno-Morenilla

Salas

2013

Computer-Aided Design

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There is a growing need within the footwear sector to customise the design of the last from which a specific footwear style is to be produced. This customisation is necessary for user comfort and health reasons, as the user needs to wear a suitable shoe. For this purpose, a relationship must be established between the user foot and the last with which the style will be made; up until now, no model has existed that integrates both elements. On the one hand, traditional customised footwear manufacturing techniques are based on purely artisanal procedures which make the process arduous and complex; on the other hand, geometric models proposed by different authors present the impossibility of implementing them in an industrial environment with limited resources for the acquisition of morphometric and structural data for the foot, apart from the fact that they do not prove to be sufficiently accurate given the non similarity of the foot and last. In this paper, two interrelated geometric models are defined, the first, a bio-deformable foot model and the second, a deformable last model. The experiments completed show the goodness of the model, with it obtaining satisfactory results in terms of comfort, efficiency and precision, which make it viable for use in the sector. Footwear Bio-modelling: An industrial approachAbstract. There is a growing need within the footwear sector to customise the design of the last from which a specific footwear style is to be produced. This customisation is necessary for user comfort and health reasons, as the user needs to wear a suitable shoe. For this purpose, a relationship must be established between the user foot and the last with which the style will be made; up until now, no model has existed that integrates both elements. On the one hand, traditional customised footwear manufacturing techniques are based on purely artisanal procedures which make the process arduous and complex; on the other hand, geometric models proposed by different authors present the impossibility of implementing them in an industrial environment with limited resources for the acquisition of morphometric and structural data for the foot, apart from the fact that they do not prove to be sufficiently accurate given the non similarity of the foot and last. In this paper, two interrelated geometric models are defined, the first, a bio-deformable foot model and the second, a deformable last model. The experiments completed show the goodness of the model, with it obtaining satisfactory results in terms of comfort, efficiency and precision, which make it viable for use in the sector. -There are many different possibilities to adapt the foot surface to the last pitch (heel height). Cage-based methods (exoskeletons) perform better than others when it comes to the deformation of the surface, in that the cage can be better controlled and adapted to the foot morphology, allowing bending areas to be more accurately defined according to the characteristic curves of the foot. The paper rules out Free Form Deforma...

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“…This approach is very sensitive to the choice of boundary (Fan et al, 2011;Zhang et al, 2010) so great care must be taken when choosing the boundary. The second approach (Ji et al, 2006) is to mark an area fairly similar to the part of the mesh that is desired. The method then uses an 'active contour'-algorithm to decide what parts to keep.…”

Section: Introductionmentioning

confidence: 99%

Tailoring biomechanical model meshes for aero-acoustic simulations

Widing

Ekeberg

2015

Computer Methods in Biomechanics and Biomedical Engineering: Im

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To simulate the airflow and acoustic wave propagation associated with voice production, a closed surface mesh representing the vocal tract is needed. Biomechanically, the vocal tract is composed of surfaces from several different anatomical structures. We present a method for assembling a dynamic vocal tract mesh by trimming and stitching surface meshes tracking biomechanical models of relevant structures. Two algorithms, one for trimming and one for stitching, are used to first isolate surface mesh patches that are in contact with the airway and then merge them into a closed surface. The algorithms rely on manually selected boundaries and are able to cover gaps between mesh patches. Test cases are used to illustrate how the algorithms behave in various situations. The algorithms are implemented in the toolkit ArtiSynth where many relevant biomechanical models are already available.

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Easy Mesh Cutting

Cited by 94 publications

References 29 publications

A comparative study of existing metrics for 3D-mesh segmentation evaluation

A comparative study of existing metrics for 3D-mesh segmentation evaluation

Footwear bio-modelling: An industrial approach

Tailoring biomechanical model meshes for aero-acoustic simulations

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