Contrast Enhancement Based Image Detection Using Edge Preserved Key Pixel Point Filtering

Balakrishnan Natarajan; Pushpalatha Krishnan

doi:10.32604/csse.2022.022376

Contrast Enhancement Based Image Detection Using Edge Preserved Key Pixel Point Filtering

Computer Systems Science and Engineering ◽

10.32604/csse.2022.022376 ◽

2022 ◽

Vol 42 (2) ◽

pp. 423-438

Author(s):

Balakrishnan Natarajan ◽

Pushpalatha Krishnan

Keyword(s):

Contrast Enhancement ◽

Image Detection

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An Energy Analyser for Contrast Enhancement in STEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100052183 ◽

1974 ◽

Vol 32 ◽

pp. 434-435

Author(s):

H.T. Pearce-Percy

Keyword(s):

Contrast Enhancement ◽

Bending Angle ◽

Magnetic Sector ◽

Conventional Design ◽

Bending Radius ◽

Sector Type

Recently an energy analyser of the uniform magnetic sector type has been installd in a 100KV microscope. This microscope can be used in the STEM mode. The sector is of conventional design (Fig. 1). The bending angle was chosen to be 90° for ease of construction. The bending radius (ρ) is 20 cm. and the object and image distances are 42.5 cm. and 30.0 cm. respectively.

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Utility of Colour Doppler Contrast Enhancement in Diagnosis of Soft Tissue Tumour

European Journal of Ultrasound ◽

10.1016/s0929-8266(97)87273-4 ◽

1997 ◽

Vol 6 ◽

pp. S38

Author(s):

F Nemore

Keyword(s):

Soft Tissue ◽

Contrast Enhancement ◽

Soft Tissue Tumour ◽

Colour Doppler ◽

Tissue Tumour

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Color flow Doppler, power Doppler or contrast enhancement in transcranial duplex somography of intracranial aneurysms? B. Griewing1, J. Piek2, L. Motsch1, Ch. Doherty1, Ch. Kessler1. 1Department of Neurology; 2Department of Neurosurgery, EMA University, Greifswald Germany

European Journal of Ultrasound ◽

10.1016/s0929-8266(97)90113-0 ◽

1997 ◽

Vol 5 ◽

pp. 47

Keyword(s):

Contrast Enhancement ◽

Intracranial Aneurysms ◽

Power Doppler ◽

Color Flow ◽

Doppler Power

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Positive correlation between neovascularization degree of carotid atherosclerosis determined by contrast-enhanced ultrasound and level of serum C-reactive protein

VASA ◽

10.1024/0301-1526/a000429 ◽

2015 ◽

Vol 44 (3) ◽

pp. 0187-0194 ◽

Cited By ~ 6

Author(s):

Xiaoni Chang ◽

Jun Feng ◽

Litao Ruan ◽

Jing Shang ◽

Yanqiu Yang ◽

...

Keyword(s):

Contrast Enhancement ◽

Rank Correlation ◽

Artery Stenosis ◽

Contrast Enhanced Ultrasound ◽

C Reactive Protein ◽

Protein Levels ◽

Reactive Protein ◽

Contrast Enhanced ◽

Grade 3 ◽

Axis View

Background: Neovascularization is one of the most important risk factors for unstable plaque. This study was designed to correlate plaque thickness, artery stenosis and levels of serum C-reactive protein with the degree of intraplaque enhancement determined by contrast-enhanced ultrasound. Patients and methods: Contrast-enhanced ultrasound was performed on 72 carotid atherosclerotic plaques in 48 patients. Contrast enhancement within the plaque was categorized as grade 1, 2 or 3. Maximum plaque thickness was measured in short-axis view. Carotid artery stenosis was categorized as mild, moderate or severe. Results: Plaque contrast enhancement was not associated with the degree of artery stenosis or with plaque thickness. Serum C-reactive protein levels were positively correlated with the number of new vessels in the plaque. C-reactive protein levels increased in the three groups(Grade 1: 3.72±1.79mg/L; Grade 2: 7.88±4.24 mg/L; Grade 3: 11.02±3.52 mg/L), with significant differences among them (F=10.14, P<0.01), and significant differences between each two groups (P<0.05). Spearmans rank correlation analysis showed that serum C-reactive protein levels were positively correlated with the degree of carotid plaque enhancement (Rs =0.69, P<0.01). Conclusions: The combination of C-reactive protein levels and intraplaque neovascularization detected by contrast-enhanced ultrasound may allow more accurate evaluation of plaque stability.

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