Spatial noise suppression for LCD displays: noise contrast

William J. Dallas; Hans Roehrig; Jiahua Fan; Elizabeth A. Krupinski; Jeffrey P. Johnson

doi:10.1117/12.844615

27 February 2010 Spatial noise suppression for LCD displays: noise contrast

William J. Dallas, Hans Roehrig, Jiahua Fan, Elizabeth A. Krupinski, Jeffrey P. Johnson

Proceedings Volume 7627, Medical Imaging 2010: Image Perception, Observer Performance, and Technology Assessment; 762706 (2010) https://doi.org/10.1117/12.844615
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

LCD monitors used for radiologic diagnosis exhibit a random spatial gain-fluctuation pattern that can be characterized as multiplicative fixed-pattern noise. Our goal is to use a monitor-particular map of this noise to pre-process mammograms for display. This noise map is obtained by processing a captured image of the monitor screen. In previous work we have demonstrated a method that produces a measurable reduction in the noise level. In this paper we describe the results of our first observer studies and of computer analysis using visual a discrimination model. The result proved to be negative, i.e. the pre-processing provided an insufficient degree of improvement to be judged diagnostically effective. In light of these first results, we have been examining our assumptions and processing methods. We begin with a brief introduction then describe the construction of the noise map and its use in pre-processing. The two key advances follow: the observer-study and the computer-modeling results. Finally, we describe our efforts to understand the relation of our measurement, modeling, and observer results.

Citation Download Citation

William J. Dallas, Hans Roehrig, Jiahua Fan, Elizabeth A. Krupinski, and Jeffrey P. Johnson "Spatial noise suppression for LCD displays: noise contrast", Proc. SPIE 7627, Medical Imaging 2010: Image Perception, Observer Performance, and Technology Assessment, 762706 (27 February 2010); https://doi.org/10.1117/12.844615

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

LCDs

Image processing

Mammography

Distortion

CCD cameras

Fluctuations and noise

Medical imaging

Show All Keywords

Keywords/Phrases

Search In:

Publication Years