https://scholars.lib.ntu.edu.tw/handle/123456789/289096
Title: | Novel concurrent architecture to implement the discrete cosine transform based on index partitions | Authors: | Duh, W.J. Wu, Ja-Ling |
Issue Date: | 1990 | Journal Volume: | 68 | Journal Issue: | 2 | Start page/Pages: | 165-174 | Source: | International Journal of Electronics | Abstract: | In this paper a new concurrent architecture based on index partition and CORDIC techniques for implementing discrete cosine transforms (DCT) (with power of two length) is proposed. This architecture works basically in a serial-in parallel-out mode. In this newly proposed architecture, three stages of pipelining are applicable and the throughput rate is improved. Each processing element (PE) is basically a CORDIC processor with a fixed angle rotation and only N/2 PEs are required for computing an N-point DCT. Since each stage of the pipeline is nearly balanced, the concurrency of pipelining is explored as much as possible. The throughput rate of this architecture is (N + 2) / NT, where N is the transform length and T the system clock period. Therefore, in this architecture, the clock period can easily be pushed up to 50 ns in VLSI chips and the throughput rate would be 17–7 MHz for N = 16. Thus, this newly proposed architecture provides the posibility of real-time computations. © 1990 Taylor and Francis Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0025383639&doi=10.1080%2f00207219008921157&partnerID=40&md5=f335542dfaa28116c0a8350c1fe9fa53 http://scholars.lib.ntu.edu.tw/handle/123456789/289096 |
DOI: | 10.1080/00207219008921157 | SDG/Keyword: | Data Processing; Mathematical Transformations; Concurrent Architecture; CORDIC Techniques; DCT Processor Architecture; Discrete Cosine Transform (DCT); Index Partitions; Computer Architecture |
Appears in Collections: | 資訊工程學系 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.