Results 31 to 40 of about 12,932,403 (306)

Digital radiographic image enhancement for weld defect detection using smoothing and morphological transformations / Suhaila Abdul Halim, Arsmah Ibrahim and Yupiter Harangan Prasada Manurung

open access: yes, 2012
Accurate inspection ofweldedmaterials is important in relation to achieve acceptable standards. Radiography, a non-destructive test method, is commonly used to evaluate the internal condition ofa material with respect to defect detection.
Suhaila Idayu Abdul Halim   +2 more
semanticscholar   +1 more source

Contextual and variational contrast enhancement [PDF]

open access: yes, 2011
This paper proposes an algorithm which enhances the contrast of an input image using inter-pixel contextual information. The algorithm uses a two-dimensional (2D) histogram of the input image constructed using mutual relationship between each pixel and ...
Tjahjadi, Tardi   +3 more
core   +1 more source

Image enhancement of digital periapical radiographs according to diagnostic tasks [PDF]

open access: yesImaging Science in Dentistry, 2014
This study was performed to investigate the effect of image enhancement of periapical radiographs according to the diagnostic task.Eighty digital intraoral radiographs were obtained from patients and classified into four groups according to the diagnostic tasks of dental caries, periodontal diseases, periapical lesions, and endodontic files. All images
Choi, Jin-Woo   +2 more
openaire   +2 more sources

K-Diag: Knowledge-enhanced Disease Diagnosis in Radiographic Imaging

open access: yesCoRR, 2023
In this paper, we consider the problem of disease diagnosis. Unlike the conventional learning paradigm that treats labels independently, we propose a knowledge-enhanced framework, that enables training visual representation with the guidance of medical domain knowledge.
Chaoyi Wu   +4 more
openaire   +3 more sources

Automatic image equalization and contrast enhancement using Gaussian mixture modeling [PDF]

open access: yes, 2012
In this paper, we propose an adaptive image equalization algorithm that automatically enhances the contrast in an input image. The algorithm uses the Gaussian mixture model to model the image gray-level distribution, and the intersection points of the ...
Tjahjadi, Tardi   +3 more
core   +1 more source

Evaluation of the maxillary premolar roots dissociation using radiographic holders with conventional and digital radiography

open access: yesBrazilian Oral Research, 2010
This in vivo study evaluated the dissociation quality of maxillary premolar roots combining variations of vertical and horizontal angulations by using X-ray holders (Rinn -XCP), and made a comparison between two types of intraoral radiography systems ...
Marcia Regina Ramalho da Silva Bardauil   +2 more
doaj   +1 more source

Techniques in image restoration and enhancement [PDF]

open access: yes, 1975
Includes bibliographical references.Image processing in its broad sense pervades many areas but it is convenient to group it into three main sections, viz: image coding, usually for image transmission over telecommunication links; pattern recognition for
Hepburn, John Stuart Andrew
core   +1 more source

Artificial intelligence for chest X-ray image enhancement

open access: yesRadiation Medicine and Protection
The chest X-ray (CXR) imaging has been the most frequently performed radiographic examination for decades, and its demand continues to grow due to their critical role in diagnosing various diseases.
Liming Song   +6 more
doaj   +1 more source

Welding defect detection based on local image enhancement

open access: yesIET Image Processing, 2019
Welding defect detection in a radiographic image is an important topic in the field of industrial non-destructive testing. To improve the accuracy of welding defect segmentation, a local image enhancement approach is proposed.
Lin Zhang   +4 more
semanticscholar   +1 more source

Comparison of Susceptibility-Weighted Imaging with Contrast Enhancement in Detection of Multiple Sclerosis Active Plaques using 1.5 Tesla Magnetic Resonance Imaging System

open access: yesمجله دانشکده پزشکی اصفهان, 2019
Background: Magnetic resonance imaging with contrast enhancement (CE) is an essential method in the detection of active multiple sclerosis (MS) plaques.
Rezvan Afkandeh   +4 more
doaj   +1 more source

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