A 2-D DCT Hardware Codec based on Loeffler Algorithm

Authors

  • I. Martisius Kaunas University of Technology
  • D. Birvinskas Kaunas University of Technology
  • V. Jusas Kaunas University of Technology
  • Z. Tamosevicius Kaunas University of Technology

DOI:

https://doi.org/10.5755/j01.eee.113.7.611

Abstract

In this paper, we report a hardware implementation scheme and results of a Loeffler algorithm based 2-D discrete cosine transformcodec. This codec performs a full 2-D DCT encoding and 2-D IDCT decoding. It is fully functional, capable of being used in anyhardware coding algorithm. The Loeffler algorithm is one of the newest and most effective fast DCT algorithms for hardwareimplementation. 2-D DCT/IDCT was computed by applying 1-D operations on matrix using a row/column approach. For a hardwareimplementation, additional data buffers and control logic is used to perform 2-D transforms. Since hardware implementation is lessaccurate than mathematical modelling, more errors occur in the computational results. However, differences are small and cannot bedirectly observed. Ill. 6, bibl. 10, tabl. 3 (in English; abstracts in English and Lithuanian).

http://dx.doi.org/10.5755/j01.eee.113.7.611

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Published

2011-09-05

How to Cite

Martisius, I., Birvinskas, D., Jusas, V., & Tamosevicius, Z. (2011). A 2-D DCT Hardware Codec based on Loeffler Algorithm. Elektronika Ir Elektrotechnika, 113(7), 47-50. https://doi.org/10.5755/j01.eee.113.7.611

Issue

Vol. 113 No. 7 (2011)

Section

ELECTRONICS

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