By Topic

A regressive structure for on-line computation of arbitrary length DCT-IV and DST-IV transforms

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Hwang-Cheng Chiang ; Dept. of Electr. Eng., Tatung Inst. of Technol., Taipei, Taiwan ; Jie-Cherng Liu

We demonstrate that the forward and inverse type-IV discrete cosine transform (DCT-IV/IDCT-IV) and type-IV discrete sine transform (DST-IV/IDST-IV) can be efficiently computed by a regressive structure. In our approach, we suggest using the recursive sinusoidal formulas corresponding to the transform kernels of these transforms to obtain an IIR filter structure. The novel structure is then used for parallel computation of arbitrary length DCT-IV/IDCT-IV and DST-IV/IDST-IV. Since the architecture can be highly parallel, simple, and regular, it is most suitable for VLSI implementation. Moreover, we do not need to permute the input sequence, which makes the approach particularly suitable for on-line computation

Published in:

Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:6 ,  Issue: 6 )