Title :
Automatic recognition of intermodulation beat products in cable television pictures
Author :
Shi, Pingnan ; Ward, Rabab K. ; Zhang, Qin
Author_Institution :
Dept. of Elect. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
A simple method which detects whether or not television pictures have become impaired by intermodulation beats is presented. This method uses the intrinsic properties of a beat in the two-dimensional Fourier transform. Since it does not use thresholding, it is able to identify beats of very weak amplitudes
Keywords :
Fourier transforms; cable television; image recognition; intermodulation; cable television pictures; intermodulation beat products; picture impairment; two-dimensional Fourier transform; weak amplitudes; Cable TV; Colored noise; Fourier transforms; Frequency; Intermodulation distortion; Low-frequency noise; Signal to noise ratio; Snow; TV interference; Working environment noise;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230358
