Title :
Study of MTF measurement technique based on special object image analyzing
Author :
Dacheng Xu ; Xuebin Zhang
Author_Institution :
Sch. of Electron. & Inf. Eng., Soochow Univ., Suzhou, China
Abstract :
Modulation transfer function (MTF) is one of the key indicators characterizing the signal transfer characteristics of an imaging system as a function of spatial frequency in terms of linear response theory. MTF measurement method based on special object image analyzing is used. In order to test the MTF more accurately, we improved the method in two parts by MATLAB simulating, which includes slant edge and adaptive average rows. through the MATLAB simulation experiment, the obtained values and the theoretical value of IMATEST simulation are compared in the lower spatial frequencies that the error control in less than 5%; Simulation results of two improved parts were presented, showing remarkable effects.
Keywords :
image denoising; lenses; optical transfer function; IMATEST simulation; MATLAB simulation experiment; MTF measurement technique; adaptive average rows; imaging system; linear response theory; modulation transfer function; noise suppression; optical lens; signal transfer characteristics; slant edge; spatial frequency function; special object image analyzing; Image edge detection; Modulation; Noise; Optical imaging; Optical variables measurement; Transfer functions; adaptive average rows; median filtering; modulation transfer function; slant edge;
Conference_Titel :
Mechatronics and Automation (ICMA), 2012 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-1275-2
DOI :
10.1109/ICMA.2012.6285669
