Sampling locations and visual difference predictors

R. Victor Klassen; Stephen C. Morgana

doi:10.1117/12.348444

19 May 1999 Sampling locations and visual difference predictors

R. Victor Klassen, Stephen C. Morgana

Proceedings Volume 3644, Human Vision and Electronic Imaging IV; (1999) https://doi.org/10.1117/12.348444
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

Visual difference predictors accept two imags as input, performed some processing, and produce a single image as output. The output image represent a map of the visibility of differences between the two input images. In practical applications, input images are received at whatever resolution is convenient for the application, and viewing distances are as appropriate for the task at hand. To match retinal sampling rates, the images are typically filtered and down-sampled. Given that the typically employed optical point spread functions do not completely remove high frequency information, we ask whether, and to what extent high frequency leakage leads to aliasing. In this paper we explore the amount of aliasing possible in our implementation of the Sarnoff Visual Discrimination Model, and describe a modification that uses a sampling grid similar to the Poisson disk distribution. We then compare the result of this sampling to that of the unmodified model.

Citation Download Citation

R. Victor Klassen and Stephen C. Morgana "Sampling locations and visual difference predictors", Proc. SPIE 3644, Human Vision and Electronic Imaging IV, (19 May 1999); https://doi.org/10.1117/12.348444

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
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Visualization

Visual process modeling

Point spread functions

Stochastic processes

Image resolution

Visual system

Image processing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years