Low-cost multi-standard video transform core using time-distribution scheme

Y. H. Chen*, Y. H. Tseng

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

Abstract

Cost-effective two-dimensional (2D) discrete cosine transform (DCT) and inverse DCT architectures capable of supporting multiple standards of MPEG, H.264 and VC-1 are presented. The proposed core utilises a 1D core and a transposed memory to achieve a low cost design. Multi-level factor share is implemented in conjunction with distributed arithmetic in a system to enable the sharing of the coefficient matrix circuit in order to reduce hardware costs. The proposed approach employs a time-distribution scheme to enable the simultaneous processing of the first and second dimensions to enhance throughput. A high efficiency of this approach was verified by fabricating a test chip using the TSMC 0.18 μm CMOS process. The architecture has an operating frequency of 200 MHz, and throughput of 800 M-pixels/s with a gate count of 44.5 K.

Original languageEnglish
Pages (from-to)1980-1982
Number of pages3
JournalElectronics Letters
Volume52
Issue number24
DOIs
StatePublished - 24 11 2016

Bibliographical note

Publisher Copyright:
© The Institution of Engineering and Technology 2016.

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