Video image enhancement utilizing a two-dimensional digital aperture correction filter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Aug 28, 1989
filing date -
Aug 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video camera system has a modulation transfer function (MTF). Video image data are stored in frame grabbers and converted in a digital signal processor from the image domain to the spatial domain by a two-dimensional digital Fourier transform. The spatial data are filtered by a two-dimensional aperture correction filter that has an MTF inverse to the uncorrected system MTF. The filtered spatical data are converted back into the image domain by a two-dimensional inverse digital Fourier transform. The two-dimensional digital aperture correction filter is stored in the form of software in the digital signal processor.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully