Results 11 to 20 of about 101,244 (263)

Progressive shape models [PDF]

open access: yes2012 IEEE Conference on Computer Vision and Pattern Recognition, 2012
Dans cet article nous nous concentrons sur un problème récurrent des systèmes d'acquisition 4D : l'apprentissage de la géométrie et de la topologie d'une scène déformable à partir d'une séquence temporelle de maillages. Il s'agit d'une étape fondamentale dans le traitement de scènes naturelles et dynamiques. Tandis que de nombreux travaux ont été menés
Letouzey, Antoine, Boyer, Edmond
openaire   +2 more sources

Active Shape Models and the Shape Approximation Problem. [PDF]

open access: yesProcedings of the British Machine Vision Conference 1995, 1995
Active Shape Models (ASM) use an iterative algorithm to match statistically defined models of known but variable objects to instances in images. Each iteration of ASM search involves two steps: image data interrogation and shape approximation. Here we consider the shape approximation step in detail.
Andrew Hill   +2 more
openaire   +3 more sources

Shape modeling with spline partitions

open access: yesStatistics and Computing, 2022
Shape modelling (with methods that output shapes) is a new and important task in Bayesian nonparametrics and bioinformatics. In this work, we focus on Bayesian nonparametric methods for capturing shapes by partitioning a space using curves. In related work, the classical Mondrian process is used to partition spaces recursively with axis-aligned cuts ...
Shufei Ge, Shijia Wang, Lloyd T. Elliott
openaire   +2 more sources

Modelling the shape of the pig scapula

open access: yesGenetics Selection Evolution, 2020
Background The shape of pig scapula is complex and is important for sow robustness and health. To better understand the relationship between 3D shape of the scapula and functional traits, it is necessary to build a model that explains most of the ...
Øyvind Nordbø
doaj   +1 more source

Modelling human hard palate shape with Bézier curves. [PDF]

open access: yesPLoS ONE, 2018
People vary at most levels, from the molecular to the cognitive, and the shape of the hard palate (the bony roof of the mouth) is no exception. The patterns of variation in the hard palate are important for the forensic sciences and (palaeo)anthropology,
Rick Janssen, Scott R Moisik, Dan Dediu
doaj   +1 more source

From clamped local shape models to global shape model [PDF]

open access: yes2013 IEEE International Conference on Image Processing, 2013
Facial fiducial point localization is a crucial step for most facial analysis applications, e.g., face recognition, expression recognition and facial aging simulation. Although state-of-art methods have the ability to provide good salient point location on frontal faces, finding a global solution under large variations caused by off-plane rotations and
Hui Fang 0003   +3 more
openaire   +1 more source

Reconstructing leaf growth based on non-destructive digitizing and low-parametric shape evolution for plant modelling over a growth cycle

open access: yesSilva Fennica, 2014
A simple and efficient photometric methodology is presented, covering all steps from field data acquisition to binarization and allowing for leaf contour modelling.
Henke, Michael   +3 more
doaj   +1 more source

A deformation-dependent coupled Lagrangian/semi-Lagrangian meshfree hydromechanical formulation for landslide modeling

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2022
The numerical modelling of natural disasters such as landslides presents several challenges for conventional mesh-based methods such as the finite element method (FEM) due to the presence of numerically challenging phenomena such as severe material ...
Jonghyuk Baek   +3 more
doaj   +1 more source

Parametrized shape models for clothing [PDF]

open access: yes2011 IEEE International Conference on Robotics and Automation, 2011
We consider the problem of recognizing the configuration of clothing articles when crudely spread out on a flat surface, prior to and during folding. At the core of our approach are parametrized shape models for clothing articles. Each clothing category has its own shape model, and the variety in shapes for a given category is achieved through ...
Miller, Stephen   +3 more
openaire   +3 more sources

A flexible geometric model for leaf shape descriptions with high accuracy

open access: yesSilva Fennica, 2018
Accurate assessment of canopy structure is crucial in studying plant-environment interactions. The advancement of functional-structural plant models (FSPM), which incorporate the 3D structure of individual plants, increases the need for a method for ...
Coussement, Jonas   +4 more
doaj   +1 more source

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