DocumentCode
2171455
Title
A non-intrusive scheme for measuring the signal-to-noise ratio in television images
Author
Zhang, Qin ; Ward, Rabab
Author_Institution
Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada
fYear
1993
fDate
14-17 Sep 1993
Firstpage
656
Abstract
We describe a method which automatically measures the signal-to-noise ratio (SNR) of a television image. Our method does not require test signals or the use of a spectrum analyzer. In our scheme, we use a second order two-dimensional digital filter to separate the snow noise and the picture contents. Then, the SNR of the picture is evaluated by the snow noise contents left in the filtered picture. Computer simulation shows a good agreement between the results of our method and the theoretical values
Keywords
filtering and prediction theory; image processing; noise measurement; television interference; television reception; two-dimensional digital filters; video signals; SNR; computer simulation; filtered picture; non-intrusive method; picture contents; second order two-dimensional digital filter; signal-to-noise ratio measurement; snow noise; television images; Bandwidth; Cable TV; Digital filters; Electric variables measurement; FCC; Noise measurement; Signal to noise ratio; Snow; Spectral analysis; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical and Computer Engineering, 1993. Canadian Conference on
Conference_Location
Vancouver, BC
Print_ISBN
0-7803-2416-1
Type
conf
DOI
10.1109/CCECE.1993.332381
Filename
332381
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