Modified slanted-edge method and multidirectional modulation transfer function estimation

被引：85

作者：

Masaoka, Kenichiro ^{[1
]}

Yamashita, Takayuki ^{[1
]}

Nishida, Yukihiro ^{[1
]}

Sugawara, Masayuki ^{[1
]}

机构：

[1] NHK Sci & Technol Res Labs, Tokyo 1578510, Japan

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 05期

关键词：

D O I：

10.1364/OE.22.006040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The slanted-edge method specified in ISO Standard 12233, which measures the modulation transfer function (MTF) by analyzing an image of a slightly slanted knife-edge target, is not robust against noise because it takes the derivative of each data line in the edge-angle estimation. We propose here a modified method that estimates the edge angle by fitting a two-dimensional function to the image data. The method has a higher accuracy, precision, and robustness against noise than the ISO 12233 method and is applicable to any arbitrary pixel array, enabling a multidirectional MTF estimate in a single measurement of a starburst image. (C)2014 Optical Society of America

引用

页码：6040 / 6046

页数：7

共 9 条

[1]

Boreman G.D., 2001, MODULATION TRANSFER

[2]

BURNS PD, 2002, P IS T 2002 PICS C I, P191

[3]

CHAZALLET F, 1985, P SOC PHOTO-OPT INST, V549, P131, DOI 10.1117/12.948815

[4] Sensation of Realness From High-Resolution Images of Real Objects [J].

Masaoka, Kenichiro ;

Nishida, Yukihiro ;

Sugawara, Masayuki ;

Nakasu, Eisuke ;

Nojiri, Yuji .

IEEE TRANSACTIONS ON BROADCASTING, 2013, 59 (01) :72-83

[5] CHARACTERIZING DIGITAL IMAGE ACQUISITION DEVICES [J].

REICHENBACH, SE ;

PARK, SK ;

NARAYANSWAMY, R .

OPTICAL ENGINEERING, 1991, 30 (02) :170-177

[6] A Camera System Using Three 33-megapixel CMOS Image Sensors for UHDTV2 [J].

Yamashita, Takayuki ;

Funatsu, Ryohei ;

Yanagi, Tadaaki ;

Mitani, Kohji ;

Nojiri, Yuji ;

Yoshida, Tetsuo .

SMPTE MOTION IMAGING JOURNAL, 2011, 120 (08) :24-31

[7]

[No title captured]

[8]

[No title captured]

[9]

[No title captured]

← 1 →