Detail publikace

Properties of Entropy Coding for 3D DCT Video Compression Method

FRÝZA, T.

Originální název

Properties of Entropy Coding for 3D DCT Video Compression Method

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This contribution presents a basic structure of video compression coder based on Three Dimensional Discrete Cosine Transform (3D DCT). Mainly, this paper deals with a optimal method of forming the 3D DCT frequency coefficients into output bit stream. It is well known the number of non zero frequency coefficients depends on the video sequence character. The sequence with a slow motion evokes a low number of coefficients and vice versa the dynamic sequence produces a high number of frequency coefficients, thus the compress ratio of an encoded sequence tends to be low. It could be proved the compress properties of 3D DCT encoder do not depends only on scene character but can be improved by the entropy coder and by the way how the coefficients are scanned. The scanning order optimized for the 3D DCT and a content of the dictionary for Huffman coder is proposed in this paper.

Klíčová slova

Video compression, Huffman coding, coding dictionary, scanning order, 3D~DCT coefficients.

Autoři

FRÝZA, T.

Rok RIV

2007

Vydáno

24. 4. 2007

Nakladatel

Dept. of Radio Electronics

Místo

Brno

ISBN

978-1-4244-0821-4

Kniha

Proceedings of 17th International Conference Radioelektronika 2007

Strany od

467

Strany do

470

Strany počet

4

BibTex

@inproceedings{BUT22462,
  author="Tomáš {Frýza}",
  title="Properties of Entropy Coding for 3D DCT Video Compression Method",
  booktitle="Proceedings of 17th International Conference Radioelektronika 2007",
  year="2007",
  pages="467--470",
  publisher="Dept. of Radio Electronics",
  address="Brno",
  isbn="978-1-4244-0821-4"
}