Results 21 to 30 of about 33,155 (235)
Freshwater ostracods (Crustacea) and environmental variability of polygon ponds in the tundra of the Indigirka Lowland, north-east Siberia [PDF]
Polar Research, 2016 Freshwater ostracods (Crustacea, Ostracoda) are valuable biological indicators. In Arctic environments, their habitat conditions are barely known and the abundance and diversity of ostracods is documented only in scattered records with incomplete ...
Andrea Schneider +5 more
doaj +1 more source
BSP-fields: An Exact Representation of Polygonal Objects by Differentiable Scalar Fields Based on Binary Space Partitioning [PDF]
, 2011 The problem considered in this work is to find a dimension independent algorithm for the generation of signed scalar fields exactly representing polygonal objects and satisfying the following requirements: the defining real function takes zero value ...
Alexander Pasko +35 more
core +1 more source
Application of Generic CAD Models for Supporting Feature Based Assembly Process Planning [PDF]
, 2018 The paper discusses a novel geometric reasoning method that supports the definition of assembly sequence planning models departing from the CAD models of the parts involved.
Bahubalendruni +16 more
core +1 more source
3D Mesh Model Classification with a Capsule Network
Algorithms, 2021 With the widespread success of deep learning in the two-dimensional field, how to apply deep learning methods from two-dimensional to three-dimensional field has become a current research hotspot.
Yang Zheng +4 more
doaj +1 more source
Evaluation of geometric deviations in rapid prototyped three-dimensional models created from computed tomography data [PDF]
Digital Diagnostics, 2021 BACKGROUND: Computer-aided design and three-dimensional printing have been used in various clinical and fundamental medicine fields, especially in surgery. For example, in the preoperative period, the correspondence of printed products to the anatomy can
Aleksandr V. Shirshin +4 more
doaj +1 more source
Morphing of Triangular Meshes in Shape Space [PDF]
, 2008 We present a novel approach to morph between two isometric poses of the same non-rigid object given as triangular meshes. We model the morphs as linear interpolations in a suitable shape space $\mathcal{S}$.
A. Brunton +6 more
core +6 more sources
Distance-Sensitive Planar Point Location [PDF]
, 2016 Let $\mathcal{S}$ be a connected planar polygonal subdivision with $n$ edges that we want to preprocess for point-location queries, and where we are given the probability $\gamma_i$ that the query point lies in a polygon $P_i$ of $\mathcal{S}$.
Arya +25 more
core +4 more sources
Linear Complexity Hexahedral Mesh Generation [PDF]
, 1998 We show that any polyhedron forming a topological ball with an even number of quadrilateral sides can be partitioned into O(n) topological cubes, meeting face to face.
Eppstein, David
core +3 more sources
Applied Sciences, 2020 Mesh quality can affect both the accuracy and efficiency of numerical solutions. This paper first proposes a geometry-based smoothing and untangling method for 2D meshes based on explicit element geometric transformation and element stitching.
Shuli Sun, Zhihong Gou, Mingguang Geng
doaj +1 more source
, 2017 For modeling the 3D world behind 2D images, which 3D representation is most appropriate? A polygon mesh is a promising candidate for its compactness and geometric properties. However, it is not straightforward to model a polygon mesh from 2D images using
Harada, Tatsuya +2 more
core +1 more source