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A self-supervised learning-based method for simultaneous motion artifacts removal and denoising of OCTA images 认领 引用 被引量：1
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作者 Yuzeng Xu Songwen Xu +1 位作者 Di Yang Yanmei Liang 《Journal of Innovative Optical Health Sciences》 SCIE EI CSCD 2026年第4期123-139,共17页
Motion artifacts and noise are key factors that determine image quality in optical coherence tomography angiography(OCTA).Although deep learning has emerged as an effective method for artifacts removal and denoising,i... Motion artifacts and noise are key factors that determine image quality in optical coherence tomography angiography(OCTA).Although deep learning has emerged as an effective method for artifacts removal and denoising,its generalization capability remains limited,and it is difficult to handle images with both motion artifacts and noise.To address this issue,we designed a Swin Transformer-based multi-scale motion artifacts and noise parallel removal network(ST-MANPR)to learn the nonlinear mapping between images with motion artifacts and noise and images without them,thereby achieving simultaneous suppression of motion artifacts and noise.The proposed network integrates the Swin window attention module,channel attention module(CAM),and adaptive multi-scale convolution denoising module(AMS-CNN)to enhance its capability in processing complex image features.At the same time,a hybrid loss function combining wavelet transform(WT)and mean square error(MSE)was introduced to facilitate high-frequency detail restoration.In addition,we constructed a dataset of OCTA images with and without motion artifacts and noise at multiple intensity levels.The created dataset was applied to train the network and the test results were evaluated both visually and numerically.The experimental results show that the proposed network can effectively remove motion artifacts and noise in OCTA images simultaneously. 展开更多
关键词 Optical coherence tomographic angiography self-supervised learning motion artifacts removal image denoising generalization
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Role of metal artifact reduction software in computed tomography angiography of lower limb metallic prosthesis:A retrospective study 认领 引用
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作者 Ahmad M Mounir Ali H Elmokadem +2 位作者 Gehad A H Saleh Ahmed El-Morsy Ghada H Abd El-Raouf 《World Journal of Radiology》 2026年第3期40-50,共11页
BACKGROUND Metal artifacts significantly limit the diagnostic quality of computed tomography(CT)algorithm in patients with lower limb metallic prostheses.Single-energy metal artifact reduction(SEMAR)algorithms have be... BACKGROUND Metal artifacts significantly limit the diagnostic quality of computed tomography(CT)algorithm in patients with lower limb metallic prostheses.Single-energy metal artifact reduction(SEMAR)algorithms have been developed to address this limitation.AIM To evaluate the effects of SEMAR algorithm on image quality characteristics of lower limb CT algorithm(CTA)(artifact reduction,signal-to-noise ratio[SNR]and inter-observer agreement)in patients with metallic prostheses.METHODS Twenty-two patients(14 males,8 females;median age 54 years)with unilateral or bilateral metal lower limb prostheses or screws underwent lower limb CTA on a 128-slice multi-detector CT scanner.Images were reconstructed with and without SEMAR algorithm.Three radiologists independently assessed subjective image quality using standardized scoring systems.Quantitative analysis included measurement of SNR and contrast-to-noise ratio in arterial and soft tissue regions of interest.RESULTS Application of SEMAR significantly improved SNR in two of three observers(P=0.009 and P=0.004),with values approaching those in the contralateral reference limb.Overall artifact reduction was statistically significant(median difference 1.5 Hounsfield unit,P0.75)was demonstrated for SNR and contrast-to-noise ratio assessment with metal artifact reduction(MAR)and reference images,while poor agreement(intraclass correlation coefficient<0.5)was noted for non-MAR images.Kendall’s W demonstrated significant concordance among observers(W=0.899,P<0.001 for study quality with MAR).CONCLUSION SEMAR algorithm significantly reduces metal artifacts from lower limb fixation prostheses without compromising vessel contrast,improving visualization of periprosthetic vascular structures and enhancing diagnostic capability of CTA examinations. 展开更多
关键词 Metal artifact reduction Computed tomography angiography Lower limb prosthesis Image quality Single energy metal artifact reduction
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Electrocardiographic artifacts in clinical practice:A logical approach to recognition and prevention 认领 引用
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作者 Sudipta Mondal Nadeem A Muslim +1 位作者 Dinesh P Raja Mukund A Prabhu 《World Journal of Cardiology》 2026年第3期37-50,共14页
Electrocardiographic(ECG)artifacts are anomalous signals unrelated to cardiac electrical activity that interfere with our interpretation and management.They can mimic serious arrhythmias or ischemic changes and often ... Electrocardiographic(ECG)artifacts are anomalous signals unrelated to cardiac electrical activity that interfere with our interpretation and management.They can mimic serious arrhythmias or ischemic changes and often lead to unnecessary interventions.Understanding why such artifacts occur requires a grasp of how ECG signals are recorded,from tiny millivolt-level cardiac signals traveling from the heart through skin electrodes,cables,amplifiers,filters,and finally the display on the monitors or ECG strip.At each step,artifacts may enter,whether from patient movement,tremor,electrode-skin interface problems,broken leads,environmental interference,or implanted devices.Although filters and digital processing aim to reduce noise,artifacts may still occur due to the significant overlap of the noise frequencies with those of the true cardiac signals,or they can arise from non-electrical causes.Recognition of these artifacts requires some logic:Correlating the ECG with patient status,assessing physiological plausibility,checking lead distribution,and confirming with ancillary signals.This review summarizes the physics of ECG recording in simple terms,classifies common artifacts and outlines practical bedside clues and preventive strategies.The goal is to provide a clear,clinically oriented framework so that artifacts are recognized not as rare technical nuisances but as everyday challenges that can be safely navigated through reasoning and awareness. 展开更多
关键词 Electrocardiographic Electrocardiogram Artifacts Pulse tapping Square wave Electromagnetic interference Orphan
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Enhancing SS-OCT 3D image reconstruction:A real-time system with stripe artifact suppression and GPU parallel acceleration 认领 引用
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作者 Dandan LIU 《虚拟现实与智能硬件（中英文）》 EI CSCD 2026年第1期115-130,共16页
Optical coherence tomography(OCT),particularly Swept-Source OCT,is widely employed in medical diagnostics and industrial inspections owing to its high-resolution imaging capabilities.However,Swept-Source OCT 3D imagin... Optical coherence tomography(OCT),particularly Swept-Source OCT,is widely employed in medical diagnostics and industrial inspections owing to its high-resolution imaging capabilities.However,Swept-Source OCT 3D imaging often suffers from stripe artifacts caused by unstable light sources,system noise,and environmental interference,posing challenges to real-time processing of large-scale datasets.To address this issue,this study introduces a real-time reconstruction system that integrates stripe-artifact suppression and parallel computing using a graphics processing unit.This approach employs a frequency-domain filtering algorithm with adaptive anti-suppression parameters,dynamically adjusted through an image quality evaluation function and optimized using a convolutional neural network for complex frequency-domain feature learning.Additionally,a graphics processing unit integrated 3D reconstruction framework is developed,enhancing data processing throughput and real-time performance via a dual-queue decoupling mechanism.Experimental results demonstrate significant improvements in structural similarity(0.92),peak signal-to-noise ratio(31.62 dB),and stripe suppression ratio(15.73 dB)compared with existing methods.On the RTX 4090 platform,the proposed system achieved an end-to-end delay of 94.36 milliseconds,a frame rate of 10.3 frames per second,and a throughput of 121.5 million voxels per second,effectively suppressing artifacts while preserving image details and enhancing real-time 3D reconstruction performance. 展开更多
关键词 Stripe artifact suppression 3D reconstruction GPU parallel computing Adaptive frequency domain filtering Convolutional neural network
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Application of streak metal artifact reduction technique in conebeam computed tomography guided percutaneous transthoracic needle biopsy 认领 引用
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作者 Zhi-Lin Wang Ge Wu 《World Journal of Radiology》 2026年第2期15-23,共9页
BACKGROUND Metallic artifacts from coaxial needles can severely interfere with the precision of cone-beam computed tomography(CBCT)-guided percutaneous transthoracic needle biopsy(PTNB),particularly in assessing vital... BACKGROUND Metallic artifacts from coaxial needles can severely interfere with the precision of cone-beam computed tomography(CBCT)-guided percutaneous transthoracic needle biopsy(PTNB),particularly in assessing vital anatomical structures around small lesions.AIM To evaluate the clinical application of a streak metal artifact reduction technique(SMART)in CBCT-PTNB procedures.METHODS We retrospectively analyzed data from 68 patients(73 CBCT scans)undergoing CBCT-guided PTNB between March 2023 and December 2024.Image quality was compared among original reconstructed CBCT images,those iteratively reconstructed using SMART with a full volume of interest(VOI)(SMART-Full),and those with a small VOI containing only the coaxial needle(SMART-Small).Evaluations focused on artifact types,puncture needle diameter measurements,and density metrics within the region of interest(ROI).RESULTS SMART-Full reconstruction significantly reduced radial,streak,and dark stripe artifacts(P<0.001)compared to original CBCT,with superior performance in puncture needle diameter measurement and ROI minimum and average density indicators(P<0.001).The incidence of dark streak artifacts decreased from 71 cases in original CBCT to 26 cases in SMART-Full.Additionally,SMART-Full was more effective than SMART-Small in artifact elimination(P<0.001).CONCLUSION SMART technology effectively reduces metal artifacts,enabling clearer visualization of hidden anatomical structures.Through quantitative analysis,this study confirms the clinical value of SMART in CBCT-guided PTNB,providing a technical reference for precise diagnosis and treatment of small pulmonary lesions. 展开更多
关键词 Lung nodule Cone-beam computed tomography Percutaneous transthoracic needle biopsy Streak metal artifact reduction technique Volume of interest
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The Child Confucius Playing with Ritual Artifacts 认领 引用
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《China Today》 2026年第3期67-67,共1页
Confucius was born in the state of Lu,the cultural exemplar of ritual propriety and music during the Zhou Dynasty period.Immersed in this rich cultural environment,the young Confucius enjoyed laying out cups and bowls... Confucius was born in the state of Lu,the cultural exemplar of ritual propriety and music during the Zhou Dynasty period.Immersed in this rich cultural environment,the young Confucius enjoyed laying out cups and bowls fashioned from clay on a table,pretending to officiate at mock rituals.Confucius’early life laid the groundwork for his future development as a master of ritual propriety and music and the founder of the influential Confucian school. 展开更多
关键词 master ritual propriety music Confucius Zhou dynasty confucian school laying cups bowls fashioned clay ritual artifacts Lu state ritual propriety music
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Chinese Cultural Artifacts in the Museum Collections of the Gulf Region(Ⅱ) 认领 引用
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作者 Zhang Yue 《China & The World Cultural Exchange》 2026年第6期48-53,共6页
The Gulf region,located in southwestern Asia,connects Asia,Europe,and Africa,and links the Indian Ocean with the Atlantic Ocean.It has been a vital thoroughfare for East-West communication since ancient times.
关键词 Chinese cultural artifacts Museum collections Indian Ocean Gulf region Atlantic Ocean Southwest Asia East West communication
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Chinese Cultural Artifacts in the Museum Collections of the Gulf Region(Ⅲ) 认领 引用
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作者 Zhang Yue 《China & The World Cultural Exchange》 2026年第7期48-53,共6页
The Gulf region,located in southwestern Asia,connects Asia,Europe,and Africa,and links the Indian Ocean with the Atlantic Ocean.It has been a vital thoroughfare for East-West communication since ancient times.
关键词 Chinese cultural artifacts Museum collections Indian Ocean Gulf region Atlantic Ocean Southwest Asia East West communication
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Chinese Cultural Artifacts in the Museum Collections of the Gulf Region(I) 认领 引用
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作者 Zhang Yue 《China & The World Cultural Exchange》 2026年第5期43-54,共12页
The Gulf region,located in southwestern Asia,connects Asia,Europe,and Africa,and links the Indian Ocean with the Atlantic Ocean.It has been a vital thoroughfare for East-West communication since ancient times.In 2073,... The Gulf region,located in southwestern Asia,connects Asia,Europe,and Africa,and links the Indian Ocean with the Atlantic Ocean.It has been a vital thoroughfare for East-West communication since ancient times.In 2073,the proposal of the Belt and Road Initiative received active responses and participation from Gulf countries,promoting multi-level economic and trade cooperation between the two sides.To showcase cultural exchanges with Gulf nations and facilitate mutual learning among world civilizations,this article introduces ancient Chinese cultural relics collected in major museums of the Gulf region,illustrating cultural interactions and maritime economic and trade ties between China and the Arab world. 展开更多
关键词 maritime economic trade ties mutual learning Chinese cultural artifacts cultural exchanges Gulf region belt road initiative
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Automatic Removal of Multiple Artifacts for Single-Channel Electroencephalography 认领 引用 被引量：1
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作者 Zhang Chenbei SABOR Nabi +3 位作者 Luo Junwen Pu Yu Wang Guoxing Lian Yong 《Journal of Shanghai Jiaotong university(Science)》 EI 2022年第4期437-451,共15页
Removing different types of artifacts from the electroencephalography(EEG)recordings is a critical step in performing EEG signal analysis and diagnosis.Most of the existing algorithms aim for removing single type of a... Removing different types of artifacts from the electroencephalography(EEG)recordings is a critical step in performing EEG signal analysis and diagnosis.Most of the existing algorithms aim for removing single type of artifacts,leading to a complex system if an EEG recording contains different types of artifacts.With the advancement in wearable technologies,it is necessary to develop an energy-efficient algorithm to deal with different types of artifacts for single-channel wearable EEG devices.In this paper,an automatic EEG artifact removal algorithm is proposed that effectively reduces three types of artifacts,i.e.,ocular artifact(OA),transmission-line/harmonic-wave artifact(TA/HA),and muscle artifact(MA),from a single-channel EEG recording.The effectiveness of the proposed algorithm is verified on both simulated noisy EEG signals and real EEG from CHB-MIT dataset.The experimental results show that the proposed algorithm effectively suppresses OA,MA and TA/HA from a single-channel EEG recording as well as physical movement artifact. 展开更多
关键词 wearable electroencephalography(EEG)devices ocular artifact(OA) transmission-line/harmonic-wave artifact(TA/HA) muscle artifact(MA) EEG artifacts detection EEG artifacts removal
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Artifact Classification in Archaeology of Xia,Shang and Zhou Dynasties:A Case Study Based on Artifacts From the Warring States Tomb at Majia Town 认领 引用
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作者 Ran Honglin 《Contemporary Social Sciences》 2025年第6期71-84,共14页
A review of previous archaeological studies on the Xia,Shang,and Zhou dynasties reveals that the classification of artifacts has largely relied on researchers’subjective judgments.This phenomenon is limited by both o... A review of previous archaeological studies on the Xia,Shang,and Zhou dynasties reveals that the classification of artifacts has largely relied on researchers’subjective judgments.This phenomenon is limited by both objective conditions and the researchers’subjective understanding.By analyzing bronzes excavated from a Warring States tomb at Majia town,Xindu district,Chengdu,located in southwestern China’s Sichuan province,this study attempts to develop a more objective methodological framework through three steps:(a)identifying representative examples with well-preserved artifacts and primary contexts;(b)establishing classification criteria based on artifact forms,quantities,spatial arrangements,and anomalies;and(c)testing these criteria against a broader range of archaeological materials. 展开更多
关键词 artifact classification Xia Shang and Zhou archaeology Majia tomb bronze artifacts
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Role of WARP sequence magnetic resonance imaging with the removal of metal artifacts in the evaluation of lumbar adjacent 认领 引用
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作者 Wei Xu Meng-Yun Xiong +4 位作者 Yi Wang Qi-Feng Yu Xiao-Jian Ye Si-Lian Wang Zhi-Kun Li 《World Journal of Orthopedics》 2025年第3期56-64,共9页
BACKGROUND Posterior lumbar interbody fusion has good clinical results,but adjacent segment disease(ASD)affects its long-term efficacy.In patients with L4-5 fusion who were followed up for more than 10 years,the ASD i... BACKGROUND Posterior lumbar interbody fusion has good clinical results,but adjacent segment disease(ASD)affects its long-term efficacy.In patients with L4-5 fusion who were followed up for more than 10 years,the ASD incidence was 33.3%.Magnetic resonance imaging(MRI)is key for ASD diagnosis,but metal artifacts from internal fixation limit its use;therefore,removing the artifacts is crucial for ASD diagnosis and treatment.AIM To evaluate the value of WARP MRI for patients with lumbar ASD.METHODS In our hospital,the lumbar spines of patients with ASD were assessed via lumbar MRI,including conventional sequences and sequences for artifacts.A PACS workstation was used for image measurement,analysis,and assessment,which mainly included measurement of the internal fixation implant artifact area,evaluation of the visibility of the anatomical structures surrounding the implant,and diagnostic assessment of ASD in the section.Conventional MRI data sequences and artifacts to sequence the contrast analysis of the MRI data.RESULTS A total of 30 patients with ASD after lumbar fusion and internal fixation were included in the study;the patients included 13 male and 17 female patients and were aged 66.03±5.83 years.The metal artifact area of the WARP T2-tirm sequence was significantly smaller than that of the conventional STIR sequence[(20.85±6.27)cm²vs(50.56±8.55)cm²,P<0.01].The WARP T2-tirm sequence was observed around the implants,pedicles,intervertebral foramen,and vertebral bodies,and the conventional STIR sequence clearly displayed nerve roots within the intervertebral foramen.In all 30 patients,all adjacent segments of the WARP T2-tirm sequence could be clearly observed(above Grade 4),whereas it was difficult to observe these segments in the conventional STIR sequence due to the presence of more severe metal artifacts.CONCLUSION WARP sequences can significantly reduce the artifact area in the sagittal and cross-sectional images of titanium alloy spinal fixation,providing a good imaging reference for the diagnosis of ASD. 展开更多
关键词 Adjacent segment disease Metal artifact Metal artifact Magnetic resonance
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AQMFB-DWT:A Preprocessing Technique for Removing Blink Artifacts Before Extracting Pain-evoked Potential EEG 认领 引用 被引量：1
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作者 Wenjia Gao Dan Liu +2 位作者 Qisong Wang Yongping Zhao Jinwei Sun 《Neuroscience Bulletin》 SCIE CAS CSCD 2025年第12期2285-2295,共11页
The pain-evoked potential electroencephalogram(EEG)is an effective electrophysiological indicator for pain assessment,yet its extraction is challenging due to interference from background activity and involuntary blin... The pain-evoked potential electroencephalogram(EEG)is an effective electrophysiological indicator for pain assessment,yet its extraction is challenging due to interference from background activity and involuntary blinks.Although existing blink artifact-removal methods show efficacy,they face limitations such as the need for reference signals,neglect of individual differences,and reliance on user input,hindering their practical application in clinical pain assessments.In this paper,we propose a novel framework applying adaptive quadrature mirror filter banks(AQMFB)with discrete wavelet transform(DWT)to remove blink artifacts in pain EEG.Unlike traditional DWT methods that apply fixed wavelets across subjects,our method adapts wavelet construction based on the characteristics of EEG.Experimental results demonstrate that AQMFB-DWT outperforms four leading methods in removing blink artifacts with minimal distortion of pain information,all within an acceptable processing time.This technique is a valuable preprocessing step for enhancing the extraction of pain-evoked potentials. 展开更多
关键词 Blink artifact removal Pain-evoked potential electroencephalography Adaptive quadrature mirror filter banks Discrete wavelet transformation
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Cultural Artifacts Exhibitions and the Promotion of Chinese Culture Wu Zetian:The Only Female Emperor of China Exhibition in the Netherlands 认领 引用
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作者 Ren Piezheng 《China & The World Cultural Exchange》 2025年第9期26-31,共6页
Cultural artifacts exhibitions are among the most profound and appealing forms of cultural exchange.These exhibitions serve as an important bridge for fostering friendly relations between countries and bringing people... Cultural artifacts exhibitions are among the most profound and appealing forms of cultural exchange.These exhibitions serve as an important bridge for fostering friendly relations between countries and bringing people closer together. 展开更多
关键词 cultural artifacts exhibitions cultural exchange cultural artifacts chinese culture friendly relations fostering friendly relations exhibitions wu zetian
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Unveiling structural artifacts in in situ XRD analysis:Decoupling electron/ion transport pathways to mitigate localized electrochemical dead zones 认领 引用
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作者 Jin-Gyu Bae Taemin Kim +3 位作者 Ju-Hyeon Lee Jeong Yeon Heo Hyeon Jeong Lee Ji Hoon Lee 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第12期474-484,I0013,共11页
In situ X-ray diffraction(XRD)has been widely employed to probe the structural evolution of lithium-ion battery electrodes.However,electrodes with practically relevant high-energy densities often exhibit pronounced el... In situ X-ray diffraction(XRD)has been widely employed to probe the structural evolution of lithium-ion battery electrodes.However,electrodes with practically relevant high-energy densities often exhibit pronounced electrochemical inhomogeneities,which substantially hinder accurate structu ral interpretatio n.In this study,we systematically investigate the origin and characteristics of localized electrochemical dead zones(LEDZs)observed during in situ XRD measurements.Through comprehensive analyses using modified coin cells and pouch cells containing various cathode materials under diverse electrochemical conditions,we identify insufficient electron and ion conductivity as the prima ry cause of LEDZ formation.Crucially,our results demonstrate that decoupling electron and ion transport pathways from the X-ray beam direction-an effect inherently realized in pouch cell configurations-effectively mitigates LEDZs,thereby enabling artifact-free structural analysis.This work underscores the critical role of cell geometry and conductivity pathways in achieving accurate structural characterization,providing fundamental guidelines for the design and interpretation of high-energy-density lithium-ion battery electrodes. 展开更多
关键词 In situ X-ray characterization High energy density electrodes Cell geometry Electron/ion transport pathways Experimental artifacts
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Electroencephalogram Signal Classification and Artifact Removal with Deep Networks and Adaptive Thresholding 认领 引用
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作者 MATHE Mariyadasu MIDIDODDI Padmaja BATTULA TIRUMALA Krishna 《Journal of Shanghai Jiaotong university(Science)》 EI 2025年第4期693-701,共9页
Physiological signals such as electroencephalogram(EEG)signals are often corrupted by artifacts during the acquisition and processing.Some of these artifacts may deteriorate the essential properties of the signal that... Physiological signals such as electroencephalogram(EEG)signals are often corrupted by artifacts during the acquisition and processing.Some of these artifacts may deteriorate the essential properties of the signal that pertains to meaningful information.Most of these artifacts occur due to the involuntary movements or actions the human does during the acquisition process.So,it is recommended to eliminate these artifacts with signal processing approaches.This paper presents two mechanisms of classification and elimination of artifacts.In the first step,a customized deep network is employed to classify clean EEG signals and artifact-included signals.The classification is performed at the feature level,where common space pattern features are extracted with convolutional layers,and these features are later classified with a support vector machine classifier.In the second stage of the work,the artifact signals are decomposed with empirical mode decomposition,and they are then eliminated with the proposed adaptive thresholding mechanism where the threshold value changes for every intrinsic mode decomposition in the iterative mechanism. 展开更多
关键词 artifact elimination deep network electroencephalogram(EEG)signal classification empirical mode decomposition
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Exflagellated microgametocytes of Plasmodium vivax in peripheral blood:A diagnostic artifact mimicking co-infection 认领 引用
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作者 Jeena Johns CSBR Prasad 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2025年第12期571-572,共2页
The World Health Organization South-East Asia Regional Office estimates a significantly higher burden-around 15 million cases and 20000 deaths per year.India alone accounts for approximately 77%of the total malaria ca... The World Health Organization South-East Asia Regional Office estimates a significantly higher burden-around 15 million cases and 20000 deaths per year.India alone accounts for approximately 77%of the total malaria cases reported in this region[1,2].Among the five Plasmodium species infecting humans,Plasmodium(P.)vivax is the most prevalent species in India.Its asexual blood stages-ring forms,trophozoites,schizonts-and gametocytes are routinely identified in peripheral blood smears.However,the observation of exflagellated microgametes in human blood is exceedingly rare and typically occurs under certain in vitro conditions[3]. 展开更多
关键词 India co infection diagnostic artifact deaths WHO South East Asia Regional Office plasmodium vivax malaria cases plasmodium species
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Improvement of Prior Image for Metal Artifact Reduction of Computed Tomography 认领 引用
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作者 SUN Wenwu ZHUANG Tiange CHEN Siping 《Journal of Shanghai Jiaotong university(Science)》 EI 2025年第3期446-451,共6页
It is not easy to reduce the metal artifacts of computed tomography images.However,the pixel values inside the metal artifact regions vary smoothly,while those on the borders of the metal and the bone regions vary sha... It is not easy to reduce the metal artifacts of computed tomography images.However,the pixel values inside the metal artifact regions vary smoothly,while those on the borders of the metal and the bone regions vary sharply.When the Canny operation by adaptive thresholding is conducted on the raw image,the almost continuous edges can be formed obviously on the borders of the metal and the bone regions,but this kind of information cannot be formed for the metal artifact regions.In this paper,by searching the closed areas formed by the border edges of the bone regions in the Canny image,the metal artifact regions,which are very difficult to discriminate only by intensity thresholding,can be excluded effectively.A novel prior image-based method is thus developed for metal artifact reduction.The experiments demonstrate that the proposed method can be realized easily and reduce the metal artifacts effectively even if multiple large metal objects exist simultaneously in the image.The method is suitable for the clinical application. 展开更多
关键词 computed tomography image metal artifact reduction prior image
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Concept Analysis of the Utilization of Artifacts in Nursing Practice Instruction 认领 引用
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作者 Takeshi Matsumoto 《Open Journal of Nursing》 2025年第1期21-29,共9页
This study aims to clarify the conceptual characteristics of artifact utilization in nursing practice instruction. Five selected articles were analyzed using the concept analysis method by Walker and Avant. The attrib... This study aims to clarify the conceptual characteristics of artifact utilization in nursing practice instruction. Five selected articles were analyzed using the concept analysis method by Walker and Avant. The attributes, antecedents, and consequences of the concept were extracted from the target literature. The analysis revealed two attributes (“connecting people to people” and “connecting people to objects”);two antecedents (“recognition of artifacts” and “selection of artifacts”);and two consequences (“designing a fulfilling learning environment” and “improving the quality of education”). The concept was defined as “promoting the utilization of artifacts by recognizing and selecting them, connecting people to people and people to objects, designing a fulfilling learning environment, and improving the quality of education”. 展开更多
关键词 Artifacts Nursing Practice Instruction Concept Analysis
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English Translation Methods for Ancient Chinese Cultural Artifacts Terminology 认领 引用
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作者 ZHENG Ling-yan WANG Yu-you 《Journal of Literature and Art Studies》 2025年第3期178-188,共11页
The translation of ancient Chinese cultural artifacts terminology in museums plays a pivotal role in facilitating cross-cultural communication and preserving cultural heritage in the context of globalization.Through f... The translation of ancient Chinese cultural artifacts terminology in museums plays a pivotal role in facilitating cross-cultural communication and preserving cultural heritage in the context of globalization.Through field research in over ten Chinese museums and analysis of more than 800 terms,this paper explores the most effective translation methods for such terminology,focusing on transliteration and literal translation under the strategy of foreignization as well as liberal translation and imitation under the domesticating strategy.Standardized terminology not only prevents ambiguities but also bridges cultural gaps by preserving phonetic authenticity while contextualizing functionality.By refining translation practices,museums can better fulfill their mission as bridges between cultures,promoting global appreciation of China’s rich historical and artistic legacy. 展开更多
关键词 ancient Chinese cultural artifacts terminology museums translation strategies translation methods cross-cultural communication
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