Results 71 to 80 of about 98,840 (316)

A Comparative Study of SIFT and its Variants

Measurement Science Review, 2013
SIFT is an image local feature description algorithm based on scale-space. Due to its strong matching ability, SIFT has many applications in different fields, such as image retrieval, image stitching, and machine vision.
Wu Jian, Cui Zhiming, Sheng Victor S., Zhao Pengpeng, Su Dongliang, Gong Shengrong   +5 more
doaj   +1 more source

Vacuum‐Formed Composites Based on a Polyolefin and a High Content of Biomass‐Waste Fillers

Advanced Engineering Materials, EarlyView.
It is shown here that by the use of a very ductile polymer matrix, it is possible to vacuum‐form products that contain up to 25% of hard biofillers with still ductile properties. The results are promising and opens up for the use of engineered biocomposites derived from industrial side‐stream biofillers in vacuum‐formed products. A strategy to increase
Susanna K. Källbom, Tuomo P. Kainulainen, Xin‐Feng Wei, Antonio J. Capezza, Daniel Helgesson, Richard T. Olsson, Mikael S. Hedenqvist   +6 more
wiley   +1 more source

Autonomous Vehicle Safety through the SIFT Method: A Conceptual Analysis

Information
This study aims to provide a conceptual analysis of the dynamic transformations occurring in an autonomous vehicle (AV), placing a specific emphasis on the safety implications for pedestrians and passengers.
Muhammad Anshari, Mohammad Nabil Almunawar, Masairol Masri, Norma Latif Fitriyani, Muhammad Syafrudin   +4 more
doaj   +1 more source

Preparation and Thermal Modification of Disentangled Ultrahigh‐Molecular‐Weight Polyethylene Particles for Powder‐Based Additive Manufacturing

Advanced Engineering Materials, EarlyView.
Ultrahigh‐molecular‐weight polyethylene powders (<≈40 μm) with a bulk density of 260 g L−1 are prepared from a silica supported bisimine pyridine iron catalyst. The nascent product is disentangled and can be thermally densified without loss of its low viscosity.
Adrian Vaghar, Georgij Jegorenkov, Yunus Kutlu, Andreas Ostendorf, Gerrit A. Luinstra   +4 more
wiley   +1 more source

Anatomy of the SIFT Method

Image Processing On Line, 2014
This article presents a detailed description and implementation of the Scale Invariant FeatureTransform (SIFT), a popular image matching algorithm. This work contributes to a detaileddissection of SIFT’s complex chain of transformations and to a careful presentation of each ofits design parameters.
Ives Rey Otero, Mauricio Delbracio
openaire   +2 more sources

Performance Comparison of Surface Sensitizers for Diode Laser Powder Bed Fusion of Polyamide 12

Advanced Engineering Materials, EarlyView.
Laser‐generated nanoparticles transform standard PA12 powders into high‐performance, dye‐free feedstocks for diode laser 3D printing. Despite identical absorbance at 808 nm, CuS, LaB6, and CB coatings reveal striking differences in fusion and strength—unlocking new design space for recyclable, industrial‐grade polymers.
Michael Willeke, Alexander Sommereyns, Simon Leupold, Arne Lüddecke, Arno Kwade, Nick Hantke, Jan T. Sehrt, Michael Schmidt, Anna R. Ziefuss, Stephan Barcikowski   +9 more
wiley   +1 more source

Automatic mosaic method of remote sensing images based on machine vision

Компьютерная оптика
Unmanned Aerial Vehicle (UAV) remote sensing is a commonly used technical means in modern science and technology, but currently, remote sensing images captured by UAVs need to be spliced to obtain more comprehensive information.
S.P. Gao, M. Xia, S.J. Zhang
doaj   +1 more source

A comparative study of image low level feature extraction algorithms

Egyptian Informatics Journal, 2013
Feature extraction and matching is at the base of many computer vision problems, such as object recognition or structure from motion. Current methods for assessing the performance of popular image matching algorithms are presented and rely on costly ...
M.M. El-gayar, H. Soliman, N. meky
doaj   +1 more source

Fault-free performance validation of fault-tolerant multiprocessors [PDF]

A validation methodology for testing the performance of fault-tolerant computer systems was developed and applied to the Fault-Tolerant Multiprocessor (FTMP) at NASA-Langley's AIRLAB facility. This methodology was claimed to be general enough to apply to
Czeck, Edward W., Feather, Frank E., Grizzaffi, Ann Marie, Segall, Zary Z., Siewiorek, Daniel P.   +4 more
core   +1 more source

Mesoporous Silica Microspheres by Super‐Fast Alkaline Etching of Micrometer‐Sized Stöber Particles

Advanced Engineering Materials, EarlyView.
Microscale silica particles are prepared along with a modified, scalable Stöber synthesis using the continuous addition of tetraethoxy silane to an ethanolic solution of ammonia with KCl. Etching with hydroxide ions at 95 °C gave porous analogs within minutes. Monodisperse particles are isolable in high yield after precipitation in ethanol.
Adrian Vaghar, Georgij Jegorenkov, Gerrit A. Luinstra   +2 more
wiley   +1 more source