Effect of injection rate on contrast-enhanced MR angiography image quality: Modulation transfer function analysis

2016 ◽  
Vol 78 (1) ◽  
pp. 357-369 ◽  
Author(s):  
Toshimasa J. Clark ◽  
Gregory J. Wilson ◽  
Jeffrey H. Maki
Keyword(s):  
Image Quality ◽  
Transfer Function ◽  
Modulation Transfer Function ◽  
Mr Angiography ◽  
Function Analysis ◽  
Injection Rate ◽  
Modulation Transfer ◽  
Contrast Enhanced ◽  
Transfer Function Analysis

scholarly journals Modulation transfer function analysis of silicon X-ray sensor with trench-structured photodiodes

2018 ◽  
Vol 15 (11) ◽  
pp. 20180177-20180177 ◽  
Author(s):  
Tetsuya Ariyoshi ◽  
Jumpei Iwasa ◽  
Yuta Takane ◽  
Kenji Sakamoto ◽  
Akiyoshi Baba ◽  
...  
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Function Analysis ◽  
Modulation Transfer ◽  
X Ray ◽  
Transfer Function Analysis

Polychromatic modulation transfer function analysis of color LCD

2002 ◽  
Author(s):  
Jong Sup Song ◽  
Yun Woo Lee ◽  
Hyun-Mo Cho ◽  
Seung Nam Park ◽  
In Won Lee ◽  
...  
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Function Analysis ◽  
Modulation Transfer ◽  
Transfer Function Analysis

Technical note. Modulation transfer function analysis of a newly revised rotational panoramic machine.

1996 ◽  
Vol 25 (5) ◽  
pp. 302-306 ◽  
Author(s):  
Y Hayakawa ◽  
F E Eraso ◽  
W C Scarfe ◽  
A G Farman ◽  
K Nishikawa ◽  
...  
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Function Analysis ◽  
Technical Note ◽  
Modulation Transfer ◽  
Transfer Function Analysis

scholarly journals Modulation Transfer Function Analysis in Myopic Model Eye

2021 ◽  
Vol 16 ◽  
pp. 1-8
Author(s):  
Shah Farez Othman ◽  
Nizam Tamchek ◽  
Farah Diana Muhammad ◽  
Mohd Hafidz Ithnin
Keyword(s):  
Transfer Function ◽  
Ray Tracing ◽  
Refractive Error ◽  
Modulation Transfer Function ◽  
Function Analysis ◽  
Population Based ◽  
Modulation Transfer ◽  
Optical Components ◽  
Transfer Function Analysis ◽  
Tracing Method

Hitherto, the eye modelling is based on the emmetropic eye taken its ocular optical components value from the population-based studies. However, no studies have been done to study the effect of aberration of myopic refractive error by modelling the eye using the parameters from ocular biometrics and ray tracing method. This study aimed to determine the modulation transfer function (MTF) of myopic refractive error using eye modelling and ray tracing technique. Three eye models had been successfully modelled in Zemax software, namely, emmetropic Liou and Brennan, myopic Liou and Brennan, corrected myopic Liou and Brennan. The optical performance of the eye models were tested using the MTF. From the MTF analysis at 100 cycles/mm, the MTF value of both tangential and sagittal rays for myopic Liou and Brennan eye was the lowest compared to its emmetropic model. Also, the MTF value of the corrected myopic Liou and Brennan model was higher compared to the uncorrected myopic model. However, the corrected myopic model produced lower MTF values for both tangential and sagittal MTF compared with the emmetropic model of Liou and Brennan. In this study, the accuracy of the MTF for myopia correction and emmetropia were calculated. It was found that the accuracy of the MTF value for corrected myopia at tangential and sagittal rays was lower.

Dynamic Modulation Transfer Function Analysis and Research under Sinusoidal Vibration

2015 ◽  
Vol 35 (7) ◽  
pp. 0711001
Author(s):  
杜言鲁 Du Yanlu ◽  
丁亚林 Ding Yalin ◽  
许永森 Xu Yongsen ◽  
聂品 Nie Pin
Keyword(s):  
Transfer Function ◽  
Modulation Transfer Function ◽  
Function Analysis ◽  
Modulation Transfer ◽  
Sinusoidal Vibration ◽  
Dynamic Modulation ◽  
Transfer Function Analysis
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