Validation of the influence of CT slice thickness on the quantitative accuracy and image quality of single photon emission computed tomography [PDF]
Asia Oceania Journal of Nuclear Medicine and Biology, 2021 Objective(s): Computed tomography (CT) images are used for precise anatomical location of lesions and for accurate attenuation correction in single-photon emission computed tomography (SPECT) image reconstruction in SPECT/CT examination.
Tomohiro Sato, Takashi Takagi
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Quantification of image quality [PDF]
SPIE Proceedings, 2002 Traditionally, the common window method is used to quantify image quality in optical lithography. The common window method can take dose variation, focus error, mask critical dimension error and aberrations into account. However, the demerit of the common window method is its computation time.
Pong, WT, Wong, AKK
openaire +3 more sources
A more effective CT synthesizer using transformers for cone-beam CT-guided adaptive radiotherapy
Frontiers in Oncology, 2022 PurposeThe challenge of cone-beam computed tomography (CBCT) is its low image quality, which limits its application for adaptive radiotherapy (ART). Despite recent substantial improvement in CBCT imaging using the deep learning method, the image quality ...
Xinyuan Chen +10 more
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Influence of study design on digital pathology image quality evaluation : the need to define a clinical task [PDF]
, 2017 Despite the current rapid advance in technologies for whole slide imaging, there is still no scientific consensus on the recommended methodology for image quality assessment of digital pathology slides.
Ducatelle, Richard +4 more
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Time-sequential Pipelined Imaging with Wavefront Coding and Super Resolution [PDF]
, 2017 Wavefront coding has long offered the prospect of mitigating optical aberrations and extended depth of field, but image quality and noise performance are inevitably reduced. We report on progress in the use of agile encoding and pipelined fusion of image
Bradburn +6 more
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A reduced-reference perceptual image and video quality metric based on edge preservation [PDF]
, 2012 In image and video compression and transmission, it is important to rely on an objective image/video quality metric which accurately represents the subjective quality of processed images and video sequences.
AL Yarbus +27 more
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Assessment of Image Quality and Lesion Detectability With Digital PET/CT System
Frontiers in Medicine, 2021 Purpose: The aim of this study was to assess image quality and lesion detectability acquired with a digital Positron Emission Tomography/Computed Tomography (PET/CT) Siemens Biograph Vision 600 system.Material and Methods: Consecutive patients who ...
Olivier Delcroix +19 more
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Quantifying image distortion based on Gabor filter bank and multiple regression analysis [PDF]
, 2012 Image quality assessment is indispensable for image-based applications. The approaches towards image quality assessment fall into two main categories: subjective and objective methods. Subjective assessment has been widely used.
Castellanos Dominguez, German +5 more
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Phantom Study on the Influence of CT Model and Tube Voltage on Image Quality
CT Lilun yu yingyong yanjiu, 2022 Objective: To compare the image quality between two CT scanners under two different tube voltages using a dedicated phantom. Materials and Methods: Siemens SOMATOM Force CT and Phillips Spectral IQon CT were used for scanning and the dedicated Assurance ...
Shu FANG +5 more
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Компьютерная оптика, 2021 This paper describes the use of some color spaces in JPEG image compression algorithm and their impact in terms of image quality and compression ratio, and then proposes adaptive color space models (ACSM) to improve the performance of lossy image ...
S. Madenda, A. Darmayantie
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