Recursive group coding for image DCT compression efficiency

Authors

  • Nadejda Kozhemiakina National Aerospace University «KhAI», Kharkiv, Ukraine
  • Vladimir Lukin National Aerospace University «KhAI», Kharkiv, Ukraine
  • Nikolay Ponomarenko National Aerospace University «KhAI», Kharkiv, Ukraine; Tampere University of Technology, Tampere, Finland
  • Victoria Naumenko National Aerospace University «KhAI», Kharkiv, Ukraine

Keywords:

Entropy coding, image compression, recursive group coding, arithmetic coding, Huffman coding

Abstract

The problem of encoding information in order to eliminate its statistical redundancy has been considered. The most widespread techniques for lossless encoding are arithmetic and Huffman coding. One disadvantage of these methods is the lack of efficiency when encoding characters with extra-large alphabets. In this paper, the efficiency of image data compression with method of recursive group coding has been considered and compared to arithmetic and Huffman coding. It is shown that recursive group coding provides a sufficient gain in compression compared to aforementioned methods.

Downloads

Download data is not yet available.

Author Biographies

Nadejda Kozhemiakina, National Aerospace University «KhAI», Kharkiv, Ukraine

Assistant of Department of Information-communication technologies named after O. O. Zelensky, National Aerospace University "Kharkov Aviation Institute", Kharkov, Ukraine

Vladimir Lukin, National Aerospace University «KhAI», Kharkiv, Ukraine

Doctor of Science (Engineering), Professor, Head of Department of Information and Communication Technologies named after A. A. Zelensky, National Aerospace University "Kharkov Aviation Institute",Kharkov, Ukraine,

Nikolay Ponomarenko, National Aerospace University «KhAI», Kharkiv, Ukraine; Tampere University of Technology, Tampere, Finland

Doctor of Science (Engineering), Professor, Professor of Department of Information and Communication Technologies named after A. A. Zelensky, National Aerospace University "Kharkov Aviation Institute", Kharkov, Ukraine,

Victoria Naumenko, National Aerospace University «KhAI», Kharkiv, Ukraine

PhD of Technical Science, Associate Professor of Department of Information-communication technologies named after O. O. Zelensky, National Aerospace University "Kharkov Aviation Institute", Kharkov, Ukraine

Downloads

Published

2021-02-13

How to Cite

Kozhemiakina, N., Lukin, V., Ponomarenko, N., & Naumenko, V. (2021). Recursive group coding for image DCT compression efficiency. Technium: Romanian Journal of Applied Sciences and Technology, 3(1), 150–155. Retrieved from https://techniumscience.com/index.php/technium/article/view/2507