Results 51 to 60 of about 6,545,527 (327)

A method of point cloud data block registration with considering distance from point to surface [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
The number of scanner stations used to acquire point cloud data is limited, resulting in poor data registration. As a result, a cloud point block registration approach was proposed that took into account the distance between the point and the surface ...
Yinju Lu, Mingyi Duan, Shuguang Dai
doaj   +1 more source

PMP-Net++: Point Cloud Completion by Transformer-Enhanced Multi-Step Point Moving Paths [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2022
Point cloud completion concerns to predict missing part for incomplete 3D shapes. A common strategy is to generate complete shape according to incomplete input.
Xin Wen   +5 more
semanticscholar   +1 more source

Influence of cyclodextrin on the solubility of a classically prepared 2-vinylcyclopropane macromonomer in aqueous solution

open access: yesBeilstein Journal of Organic Chemistry, 2012
A macromonomer 5 consisting of a polymerizable vinylcyclopropane end group and a poly(N-isopropylacrylamide) (poly(NiPAAm)) chain was obtained from amidation of 1-ethoxycarbonyl-2-vinylcyclopropane-1-carboxylic acid (4) with an amino-terminated poly ...
Helmut Ritter   +2 more
doaj   +1 more source

Preparation of polyamide 12 powder for additive manufacturing applications via thermally induced phase separation

open access: yese-Polymers, 2022
Spherical polyamide 12 (PA12) powder for selective laser sintering (SLS) was prepared by thermally induced phase separation (TIPS) method. It was authenticated that the mixed solvent can regulate the liquid–liquid phase separation (LLPS) process by ...
Su Dandan   +4 more
doaj   +1 more source

The Bilateral Filter for Point Clouds [PDF]

open access: yesImage Processing On Line, 2017
Point sets obtained by 3D scanners are often corrupted with noise, that can have several causes, such as a tangential acquisition direction, changing environmental lights or a reflective object material. It is thus crucial to design efficient tools to remove noise from the acquired data without removing important information such as sharp edges or ...
Digne, Julie, de Franchis, Carlo
openaire   +4 more sources

Effect of Salt on Gelation Behavior of Injectable Nanocomposite Scaffold Based on Hydroxypropyl Methylcellulose and Hydroxyapatite/Tricalcium Phosphate Nanoparticles [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2014
Biocompatible cellulosic polymer hydrogels are used in in-situ forming injectable scaffolds for bone regeneration. The hydrogels, however, generally suffer from their inherent weak mechanical properties.
Roghayyeh Marefat Seyedlar   +3 more
doaj   +1 more source

The use of response surface methodology (RSM) for improving Freezing point, Cloud point and Pour point of common carp (Cyprinus carpio L.) fish viscera oil extracted by infrared ray

open access: yesالمجلة العراقية للاستزراع المائي, 2023
    As a result of the special advantages of infrared such as ambient does not affect by IR heating, being environmentally friendly, reducing the size of equipment used in food heating and ease of control.
Atheer A. Al–Mtury   +2 more
doaj   +1 more source

Three-Dimensional Point Cloud Semantic Segmentation for Cultural Heritage: A Comprehensive Review

open access: yesRemote Sensing, 2023
In the cultural heritage field, point clouds, as important raw data of geomatics, are not only three-dimensional (3D) spatial presentations of 3D objects but they also have the potential to gradually advance towards an intelligent data structure with ...
Su Yang, M. Hou, Songnian Li
semanticscholar   +1 more source

Point-GNN: Graph Neural Network for 3D Object Detection in a Point Cloud [PDF]

open access: yesComputer Vision and Pattern Recognition, 2020
In this paper, we propose a graph neural network to detect objects from a LiDAR point cloud. Towards this end, we encode the point cloud efficiently in a fixed radius near-neighbors graph. We design a graph neural network, named Point-GNN, to predict the
Weijing Shi, R. Rajkumar
semanticscholar   +1 more source

Fabrication of Porous Scaffolds from Poly(D,L-lactic acid) by Liquid-Liquid Phase Separation [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2008
In this study, porous scaffolds from poly(D,L-lactic acid) have been prepared via liquid- liquid phase separation method in ternary system of polymer-1,4-dioxane-water.
A. Talebi, M.T. Khorasani, H. Mirzadeh
doaj   +1 more source

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