DocumentCode
3319339
Title
Design and analysis of resolution improvement by interframe processing algorithm
Author
Nikitin, Vladimir G. ; Gruzman, Igor S.
Author_Institution
NSTU, Novosibirsk, Russia
fYear
2001
fDate
2001
Firstpage
145
Lastpage
146
Abstract
Summary form only given. In television systems during frame-by-frame viewing, poor resolution can be detected, while for a moving picture (as a sequence of still images) the resolution is estimated as good. The reason for this is that the eye does the necessary processing itself. Perhaps, it happens because of the lower special sampling frequency that is needed according to Nyquist´s theorem. The sampling frequency can be knowingly taken lower to reduce data storage capacity. Having several frames (still images) shifted one from another and defining these shifts one can superpose the frames and increase the resolution. An algorithm of mutual shifts estimation was derived, which does not depend on the correlation function shape and uses its parity property. It allows locating the maximum with more accuracy than a period of sampling, by processing the discrete correlation function with weight coefficients
Keywords
estimation theory; image resolution; video signal processing; Nyquist theorem; TV signals; interframe processing algorithm; mutual shifts estimation algorithm; resolution improvement; sampling frequency; television systems; Algorithm design and analysis; Frequency; Image resolution; Image restoration; Image sampling; Signal resolution; Signal restoration; Signal sampling; Student members; TV;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices and Materials, 2001. Proceedings. 2nd Annual Siberian Russian Student Workshop on
Conference_Location
Erlagol, Altai
Print_ISBN
5-7782-0347-0
Type
conf
DOI
10.1109/SREDM.2001.939182
Filename
939182
Link To Document