DCT-QM: A DCT-Based Quality Degradation Metric for Image Quality Optimization Problems

2016 ◽  
Vol 25 (10) ◽  
pp. 4916-4930 ◽  
Author(s):  
Sung-Ho Bae ◽  
Munchurl Kim
Keyword(s):  
Image Quality ◽  
Optimization Problems ◽  
Quality Optimization ◽  
Quality Degradation

scholarly journals Two simple criteria to estimate an objective’s performance when imaging in non design tissue clearing solutions

2019 ◽  
Author(s):  
Sabrina Asteriti ◽  
Valeria Ricci ◽  
Lorenzo Cangiano
Keyword(s):  
Image Quality ◽  
High Refractive Index ◽  
Optimal Conditions ◽  
Point Spread Functions ◽  
Tissue Clearing ◽  
Fluorescent Microscope ◽  
Immersion Medium ◽  
Quality Degradation ◽  
Point Spread ◽  
The Impact

ABSTRACTTissue clearing techniques are undergoing a renaissance motivated by the need to image fluorescence deep in biological samples without physical sectioning. Optical transparency is achieved by equilibrating tissues with high refractive index (RI) solutions, which require expensive optimized objectives to avoid aberrations. One may thus need to assess whether an available objective is suitable for a specific clearing solution, or the impact on imaging of small mismatches between cleared sample and objective design RIs. We derived closed form approximations for image quality degradation versus RI mismatch and other parameters available to the microscopist. We validated them with computed (and experimentally confirmed) aberrated point spread functions, and by imaging fluorescent neurons in high RI solutions. Crucially, we propose two simple numerical criteria to establish: (i) the degradation in image quality (brightness and resolution) from optimal conditions of any clearing solution/objective combination; (ii) which objective, among several, achieves the highest resolution in a given immersion medium. These criteria apply directly to the widefield fluorescent microscope but are also closely relevant to more advanced microscopes.

Image quality degradation of object-color metamer mismatching in digital camera color reproduction

2018 ◽  
Vol 57 (11) ◽  
pp. 2851 ◽  
Author(s):  
Jueqin Qiu ◽  
Haisong Xu ◽  
Zhengnan Ye ◽  
Changyu Diao
Keyword(s):  
Image Quality ◽  
Digital Camera ◽  
Color Reproduction ◽  
Quality Degradation

scholarly journals Image quality optimization using a narrow vertical detector dental cone-beam CT

2019 ◽  
Vol 48 (3) ◽  
pp. 20180357 ◽  
Author(s):  
Danieli Moura Brasil ◽  
Ruben Pauwels ◽  
Wim Coucke ◽  
Francisco Haiter-Neto ◽  
Reinhilde Jacobs
Keyword(s):  
Image Quality ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Quality Optimization

SU-E-I-43: Pediatric CT Dose and Image Quality Optimization

2014 ◽  
Vol 41 (6Part5) ◽  
pp. 139-140
Author(s):  
G Stevens ◽  
R Singh
Keyword(s):  
Image Quality ◽  
Quality Optimization ◽  
Pediatric Ct ◽  
Ct Dose

SU-E-J-130: Study of the Image Quality Degradation in Phase-Based 4DCT Imaging for Radiation Oncology

2012 ◽  
Vol 39 (6Part8) ◽  
pp. 3682-3682
Author(s):  
A Negri ◽  
D Michelutti ◽  
R Padovani ◽  
E Moretti
Keyword(s):  
Image Quality ◽  
Radiation Oncology ◽  
Quality Degradation

Tuning tool for image quality optimization of a hybrid semiconductor pixel detector

2004 ◽  
Author(s):  
L. del Risco Norrlid ◽  
F. Edling ◽  
K. Fransson ◽  
R. Brenner ◽  
C. Ronnqvist ◽  
...  
Keyword(s):  
Image Quality ◽  
Pixel Detector ◽  
Quality Optimization
Sign in / Sign up

Export Citation Format

Share Document