Results 31 to 40 of about 11,213,834 (373)
Multiscale contrast enhancement
Electronics Letters, 2001 A novel approach for image contrast enhancement is presented. A contrast measure which accounts for spatial structure information as derived within the context of a nonlinear multiscale representation generated by anisotropic diffusion is introduced. A local contrast map is computed, which is then used to enhance the original image.
G. Boccignone, M. Ferraro
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Contrast-enhanced ultrasonography of the carotids [PDF]
Ultrasonography, 2015 Contrast-enhanced ultrasonography of the carotids has recently emerged as a complementary examination to conventional carotid Doppler ultrasonography. It is an examination providing improved visualization of the vascular lumen, more accurate and detailed delineation of the vascular wall, and identification of atherosclerotic plaques. Moreover, contrast-
Konstantinos Kouskouras +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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Enhancement of dronogram aid to visual interpretation of target objects via intuitionistic fuzzy hesitant sets [PDF]
, 2019 In this paper, we address the hesitant information in enhancement task often caused by differences in image contrast. Enhancement approaches generally use certain filters which generate artifacts or are unable to recover all the objects details in images.
Bhattacharyya, Siddhartha +3 more
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Heralded phase-contrast imaging using an orbital angular momentum phase-filter [PDF]
, 2016 We utilise the position and orbital angular momentum (OAM) correlations between the signal and idler photons generated in the down-conversion process to obtain ghost images of a phase object.
Aspden, Reuben S. +4 more
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Contrast-enhanced ultrasound in oncology [PDF]
Cancer Imaging, 2011 In patients with known malignant disease, 51% of liver lesions less than 1.5 cm turn out to be benign. Whether the probability of malignancy is high or low, further investigations are often necessary to definitely exclude malignancy. Contrast-enhanced ultrasonography has a prominent role in lesion characterization with a diagnostic accuracy comparable ...
Madsen, Hans Henrik Torp +1 more
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A comparison of enhancement techniques for footwear impressions on dark and patterned fabrics [PDF]
, 2013 The use of chemical enhancement techniques on porous substrates, such as fabrics, poses several challenges predominantly due to the occurrence of background staining and diffusion as well as visualisation difficulties.
Bandey, Helen +3 more
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Intra-arterial versus intra venous contrast-enhanced computed tomography of the equine head [PDF]
, 2016 Background: The anatomical complexity of the horse’s head limits the abilities of radiography. Computed tomography (CT) in combination with contrast enhanced CT is used more often for diagnosing various head pathology in horses.
Baeumlin, Yseult +7 more
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Neoliberalising bioethics: Bias, enhancement and economistic ethics [PDF]
, 2008 In bioethics there is an ongoing debate about the ethical case for human enhancement through new biomedical technologies. In this debate there are both supporters and opponents of human enhancement technologies such as genetic improvements of cognitive ...
Birch, Kean
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Spontaneous intracranial hypotension : two steroid-responsive cases [PDF]
, 2018 Purpose: Spontaneous intracranial hypotension (SIH) is characterised by orthostatic headache, low cerebrospinal fluid pressure and diffuse pachymeningeal enhancement after intravenous gadolinium contrast administration.
Alexis, Zandolino +5 more
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