Abstract
In this paper, new recursive structures for computing radix-r two-dimensional discrete cosine transform (2-D DCT) are proposed. Based on the same indices of transform bases, the regular pre-add preprocess is established and the recursive structures for 2-D DCT, which can be realized in a second-order infinite-impulse response (IIR) filter, are derived without involving any transposition procedure. For computation of 2-D DCT, the recursive loops of the proposed structures are less than that of one-dimensional DCT recursive structures, which need data transposition to achieve the so-called row-column approach. With advantages of fewer recursive loops and no transposition, the proposed recursive structures achieve more accurate results than the existed methods. The regular and modular properties are suitable for VLSI implementation.
Original language | English |
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Pages (from-to) | IV269-II272 |
Journal | Proceedings - IEEE International Symposium on Circuits and Systems |
Volume | 4 |
Publication status | Published - 2003 |
Event | Proceedings of the 2003 IEEE International Symposium on Circuits and Systems - Bangkok, Thailand Duration: 2003 May 25 → 2003 May 28 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering