Results 1 to 10 of about 119,506 (232)

An Effective 3D Shape Descriptor for Object Recognition with RGB-D Sensors [PDF]

open access: yesSensors, 2017
RGB-D sensors have been widely used in various areas of computer vision and graphics. A good descriptor will effectively improve the performance of operation.
Zhong Liu   +3 more
doaj   +2 more sources

Learning local shape descriptors for computing non-rigid dense correspondence [PDF]

open access: diamondComputational Visual Media, 2020
A discriminative local shape descriptor plays an important role in various applications. In this paper, we present a novel deep learning framework that derives discriminative local descriptors for deformable 3D shapes.
Jianwei Guo   +4 more
doaj   +2 more sources

Density-Based 3D Shape Descriptors [PDF]

open access: greenEURASIP Journal on Advances in Signal Processing, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Schmitt Francis   +3 more
openalex   +7 more sources

TOSD: A Hierarchical Object-Centric Descriptor Integrating Shape, Color, and Topology [PDF]

open access: yesSensors
This paper introduces a hierarchical object-centric descriptor framework called TOSD (Triplet Object-Centric Semantic Descriptor). The goal of this method is to overcome the limitations of existing pixel-based and global feature embedding approaches.
Jun-Hyeon Choi   +3 more
doaj   +2 more sources

Molecular Shape Descriptors. 1. Three-Dimensional Molecular Shape Descriptor

open access: hybridZeitschrift für Naturforschung A, 1985
The paper presents and illustrates a method which uses numerical integration of the van der Waals envelope(s) to calculate with desired accuracy the molecular van der Waals volume and the three-dimensional molecular shape descriptor defined as the twin-number [OV(α, β); NOV(β, α), where OV and NOV represent the overlapping and, respectively, the ...
Ioan Moţoc   +3 more
openalex   +3 more sources

Local Shape Descriptors for Neuron Segmentation [PDF]

open access: yesNature Methods, 2021
AbstractWe present a simple, yet effective, auxiliary learning task for the problem of neuron segmentation in electron microscopy volumes. The auxiliary task consists of the prediction of Local Shape Descriptors (LSDs), which we combine with conventional voxel-wise direct neighbor affinities for neuron boundary detection.
Arlo Sheridan   +7 more
openaire   +4 more sources

An anisotropic Chebyshev descriptor and its optimization for deformable shape correspondence

open access: yesComputational Visual Media, 2023
Shape descriptors have recently gained popularity in shape matching, statistical shape modeling, etc. Their discriminative ability and efficiency play a decisive role in these tasks.
Shengjun Liu   +6 more
doaj   +1 more source

3D shape retrieval based on Laplace operator and joint Bayesian model

open access: yesVisual Informatics, 2020
Feature analysis plays a significant role in computer vision and computer graphics. In the task of shape retrieval, shape descriptor is indispensable.
Zihao Wang, Hongwei Lin
doaj   +1 more source

3D Model Classification Based on Bayesian Classifier with AdaBoost

open access: yesDiscrete Dynamics in Nature and Society, 2021
With the exponential increasement of 3D models, 3D model classification is crucial to the effective management and retrieval of model database. Feature descriptor has important influence on 3D model classification.
Xue-Yao Gao   +3 more
doaj   +1 more source

Fourier Transform to Group Feature on Generated Coarser Contours for Fast 2D Shape Matching

open access: yesIEEE Access, 2020
Fourier descriptors are classical global shape descriptors with high matching speed but low accuracy. To obtain higher accuracy, a novel framework for forming Fourier descriptors is proposed and named as MSFDGF (multiscale Fourier descriptor using group ...
Yan Zheng   +6 more
doaj   +1 more source

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