Title :
Generalized polyphase representation and application to coding gain enhancement
Author :
Soman, Anand K. ; Vaidyanathan, P.P.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
fDate :
9/1/1994 12:00:00 AM
Abstract :
Generalized polyphase representations (GPP) have been mentioned in literature in the context of several applications. In this paper, we provide a characterization for what constitutes a valid GPP. Then, we study an application of GPP, namely in improving the coding gains of transform coding systems. We also prove several properties of the GPP
Keywords :
encoding; image coding; transforms; coding gain enhancement; coding gains; generalized polyphase representation; transform coding systems; Autocorrelation; Autoregressive processes; Circuits; Digital filters; Digital signal processing; Finite impulse response filter; Random processes; Transfer functions; Transform coding;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
