Results 31 to 40 of about 81,064 (299)

New Classification of Intraoral Phosphor Plate Artifacts Based on Literature Review

European Annals of Dental Sciences, 2022
AIM: Artifacts (error) encountered in phosphor plates (PSP) used in intraoral digital imaging were evaluated under a new classification. METHODS: In our study, when obtaining images with intraoral phosphor plates, artifacts before, during, after the ...
Bengi Öztaş, Hakan Eren, Burak İncebeyaz   +2 more
doaj   +1 more source

A Novel Method for the Measurement of Geometric Errors in the Linear Motion of CNC Machine Tools

Applied Sciences, 2019
In order to improve the accuracy of the linear motion of computer numerical control (CNC) machine tools, a novel method based on a new type of 1-D (1-dimensional) artifact is proposed to measure the geometric errors.
Xuan Wei, Zhikun Su, Xiaohuan Yang, Zekui Lv, Zhiming Yang, Haitao Zhang, Xinghua Li, Fengzhou Fang   +7 more
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Artificial arterial blood pressure artifact models and an evaluation of a robust blood pressure and heart rate estimator

BioMedical Engineering OnLine, 2009
Background Within the intensive care unit (ICU), arterial blood pressure (ABP) is typically recorded at different (and sometimes uneven) sampling frequencies, and from different sensors, and is often corrupted by different artifacts and noise which are ...
Mark Roger G, Li Qiao, Clifford Gari D
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The data-processing multiverse of event-related potentials (ERPs): A roadmap for the optimization and standardization of ERP processing and reduction pipelines

NeuroImage, 2021
In studies of event-related brain potentials (ERPs), numerous decisions about data processing are required to extract ERP scores from continuous data. Unfortunately, the systematic impact of these choices on the data quality and psychometric reliability ...
Peter E. Clayson, Scott A. Baldwin, Harold A. Rocha, Michael J. Larson   +3 more
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Evaluation of the Metrological Performance of a Handheld 3D Laser Scanner Using a Pseudo-3D Ball-Lattice Artifact

Sensors, 2021
This paper proposes the use of a pseudo-3D ball-lattice artifact to characterize a handheld laser scanner from a metrological standpoint. The artifact allows the computation of local and global errors in measurement by using the reference-frame ...
Rémi Bonin, Farbod Khameneifar, J.R.R. Mayer   +2 more
doaj   +1 more source

Metal artifacts reduction in kV-CT images with polymetallic dentures and complex metals based on MV-CBCT images in radiotherapy

Scientific Reports, 2023
This paper proposes a metal artifact reduction method of using MV-CBCT images to correct metal artifacts in kV-CT images, especially for the complex metal artifacts caused by multi-metal interaction of patients with head and neck tumors.
Xiaochen Ni, Zhonghua Shi, Xinmao Song, Tianci Tang, Shengwei Li, Zhenfeng Hou, Wei Zhang, Wei Fang Wang, Fu Chen, Ji Li, Gang Yang, Ruichen Li, Xiaoshen Wang   +12 more
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Influence of artifact removal on rare species recovery in natural complex communities using high-throughput sequencing. [PDF]

PLoS ONE, 2014
Large-scale high-throughput sequencing techniques are rapidly becoming popular methods to profile complex communities and have generated deep insights into community biodiversity.
Aibin Zhan, Wei Xiong, Song He, Hugh J Macisaac   +3 more
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Eye-blink artifact removal from single channel EEG with k-means and SSA

Scientific Reports, 2021
In recent years, the usage of portable electroencephalogram (EEG) devices are becoming popular for both clinical and non-clinical applications. In order to provide more comfort to the subject and measure the EEG signals for several hours, these devices ...
Ajay Kumar Maddirala, Kalyana C Veluvolu
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Development of Motion Artifact Correction Solutions for the Cone-beam CT Images during Pancreatic Cancer Image-guided Radiotherapy

CT Lilun yu yingyong yanjiu, 2022
The cone-beam CT (CBCT) system based on the two-dimensional flat-panel detector technology is widely applied in patient location verification before radiotherapy.
Chen LUO, Qing REN, Jianqiang LIU, Tianye NIU   +3 more
doaj   +1 more source

Automatic Text-Independent Artifact Detection, Localization, and Classification in the Synthetic Speech [PDF]

Radioengineering, 2017
The paper describes experiments with statistical approaches to automatic detection, localization, and classification of the basic types of artifacts in the synthetic speech produced by the Czech text-to-speech system using the unit selection method.
J. Pribil, A. Pribilova, J. Matousek
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