Title :
Design of lapped orthogonal transforms
Author :
Heusdens, Richard
Author_Institution :
Philips Res. Lab., Eindhoven, Netherlands
fDate :
8/1/1996 12:00:00 AM
Abstract :
We investigate the design of lapped orthogonal transforms for data compression of images. We present some properties and new results of paraunitary filter banks. We concentrate on the case where the filter length L=2K, where K is the number of channels. The aim is to design perceptually relevant filters, i.e., linear-phase filters that smoothly decay to zero at the boundaries
Keywords :
band-pass filters; data compression; delay circuits; filtering theory; image coding; transform coding; transforms; data compression; filter length; image compression; lapped orthogonal transforms; linear-phase filters; paraunitary filter banks; transform coding; Bit rate; Channel bank filters; Data compression; Discrete cosine transforms; Discrete transforms; Filter bank; Image coding; Quantization; Transform coding;
Journal_Title :
Image Processing, IEEE Transactions on
