Results 21 to 30 of about 676,754 (296)
Enhancing Underwater Images via Color Correction and Multiscale Fusion
Applied Sciences, 2023 Color distortion, low contrast, and blurry details are the main features of underwater images, which can have adverse effects on their quality. To address these issues, a novel enhancement method based on color correction and multiscale fusion is ...
Ning Tian +4 more
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Preventing Over-Enhancement Using Modified ICSO Algorithm
IEEE Access, 2023 This paper proposes an Image Contrast Enhancement (ICE) method based on using an Improved Chicken Swarm Optimization (ICSO) algorithm to enhance images while at the same time preventing over-enhancement.
Sahar Azimian +2 more
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CONTRAST ENHANCEMENT OF SCANNING ELECTRON MICROSCOPY IMAGES USING A NONCOMPLEX MULTIPHASE ALGORITHM [PDF]
Applied Computer Science, 2022 Microscopic technology has recently flourished, allowing unparalleled viewing of microscopic elements invisible to the normal eye. Still, the existence of unavoidable constraints led on many occasions to have low contrast scanning electron ...
Zaid ALSAYGH, Zohair AL-AMEEN
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Standardization of MRI Studies Using an Automatic Magnetic Resonance Contrast Agent Injector
Вестник рентгенологии и радиологии, 2020 The reproducibility of the conditions used during scanning, especially in MRI, is one of the important tasks in radiodiagnosis to obtain standardized data and to correctly assess them over time in the same patient.
V. A. Fokin
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BioMed Research International, 2015 The recent decade has witnessed the great improvement of contrast-enhanced ultrasound (CEUS) and its extensive use in clinical practice, which is undoubtedly the major breakthrough in the field of diagnostic ultrasound in recent years. The concept of CEUS can be looked back to 60s in the last century, whereas only in 2000s CEUS regained increasing ...
Hui-Xiong Xu +3 more
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Ramp Distribution-Based Contrast Enhancement Techniques and Over-Contrast Measure
IEEE Access, 2019 Our approach to contrast enhancement (CE) of images is based on natural scene statistics (NSS). We show, in this paper, that the average intensity distribution of natural images can be linearly approximated to the ramp distribution in an ordered ...
Seungyoun Lee, Changick Kim
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Contrast-enhanced endoscopic ultrasound
Endoscopic Ultrasound, 2012 The European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) introduced guidelines on the use of contrast-enhanced ultrasound (CEUS) in 2004. This EFSUMB-document focused mainly on liver applications. However, new applications extending beyond the liver were developed thereafter.
Dietrich, Christoph F. +2 more
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Contrast‐enhanced endoscopic ultrasound [PDF]
Digestive Endoscopy, 2013 Compared to other imaging modalities, endoscopic ultrasound (EUS) has limitations in terms of image enhancement. However, with the availability of contrast agents in ultrasonography, EUS has evolved. Contrast‐enhanced Doppler EUS (CD‐EUS) enhances Doppler signals from vessels and is useful for characterizing lesions detected by EUS.
Masayuki, Kitano +2 more
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Adaptive Fuzzy Exposure Local Contrast Enhancement
IEEE Access, 2018 Numerous factors, such as illumination condition, can affect image quality. Local contrast enhancement is an approach for improving the local visibility detail of an image by increasing the contrast in local regions.
Abdullah Amer Mohammed Salih +2 more
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Contrast-enhanced coronary MRA [PDF]
Journal of Magnetic Resonance Imaging, 1999 Coronary angiography with magnetic resonance imaging (MRI) has long been a goal for bringing cardiac MRI into clinical use for diagnosis of coronary artery disease. In this paper, the fundamental problems of respiratory and cardiac motion, signal-to-noise ratio, and contrast-to-noise ratio are discussed in reference to implications for coronary imaging
C H, Lorenz, L O, Johansson
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