Modulation transfer function (MTF), aliasing, and dithering with high-precision CCD imagers

Mike Marchywka

doi:10.1117/12.204830

14 March 1995 Modulation transfer function (MTF), aliasing, and dithering with high-precision CCD imagers

Mike Marchywka

Proceedings Volume 2416, Cameras and Systems for Electronic Photography and Scientific Imaging; (1995) https://doi.org/10.1117/12.204830
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

CCD imagers introduce artifacts into the images they reproduce with a variety of mechanisms related to sampling by a regular array of finite- size pixels. Two classes of artifacts are aliasing and modulation transfer function (MTF) limitations. This work analyzes the origin of both effects and concludes that aliasing is solely an artifact of the sampling process and that MTF limitations are due to the properties of the pixels. The dithering technique is intended to decrease these limitations by repeatedly sampling the same scene. We show in this paper that dithering is effective in removing aliasing artifacts but cannot avoid MTF limitations inherent in the image. In situations where dithering is effective, we analyze some errors likely to be encountered in implementing the technique.

Citation Download Citation

Mike Marchywka "Modulation transfer function (MTF), aliasing, and dithering with high-precision CCD imagers", Proc. SPIE 2416, Cameras and Systems for Electronic Photography and Scientific Imaging, (14 March 1995); https://doi.org/10.1117/12.204830

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available