Quantifying Image Quality Improvement Using Elevated Acoustic Output in B-Mode Harmonic Imaging

Harmonic Imaging Using a Mechanical Sector, B-MODE

HARMONIC IMAGING USING A MECHANICAL SECTOR, B-MODE ULTRASOUND SYSTEM by Danna Gurari ADVISOR: Dr. William D. Richard August 2005 Saint Louis Missouri An ultrasound imaging system includes transmitting ultrasound waves into a human body, collecting the reflections, manipulating the reflections, and then displaying them on computer screen as a grayscale image. The standard approach for ultrasound...

Power Quality Improvement Using Switch Mode Regulator

Quantifying Perceptual Image Quality

This paper describes a more efficient paired comparison method that reduces the number of trials necessary for converting a table of paired comparisons into scalar data. Instead of comparing every pair of samples (the complete method), a partial method is used that makes more comparisons between closer samples than between more distant samples. A sorting algorithm is used to efficiently order t...

The Practice of Chest Radiography Using Different Digital Imaging Systems: Dose and Image Quality

Introduction: The study was undertaken to evaluate the practice of chest radiography using different digital imaging systems and its influence on dose and image quality.  Materials and Methods: The study was carried out in two hospitals from March 2016 to June 2016. Sixty ambulatory patients aged 21 to 60 years who were able to cooperate without difficulty and weighed between 60 to 80 kg were ...

Image Quality Improvement in Adaptive Optics Scanning Laser Ophthalmoscopy Assisted Capillary Visualization Using B-spline-based Elastic Image Registration

PURPOSE To investigate the effect of B-spline-based elastic image registration on adaptive optics scanning laser ophthalmoscopy (AO-SLO)-assisted capillary visualization. METHODS AO-SLO videos were acquired from parafoveal areas in the eyes of healthy subjects and patients with various diseases. After nonlinear image registration, the image quality of capillary images constructed from AO-SLO ...