Publication detail

Improving Quality of Video Signals Encoded by 3D DCT Transform

FRÝZA, T.

Original Title

Improving Quality of Video Signals Encoded by 3D DCT Transform

English Title

Improving Quality of Video Signals Encoded by 3D DCT Transform

Type

conference paper

Language

en

Original Abstract

This paper deals with the properties of a compression method based on the 3D DCT. During the video compression process with 3D DCT the image data are transformed into frequency domain and the cross-correlation between adjacent pixels and even between frames is being removed without any quality loss. By implementing the quantization and thresholding operations, the number of 3D DCT coefficients is reducing. The situation is even worse while a group of encoded frames contains several types of video sequences, i.e. the cut is presents. In decompressed sequence the disturbing cross-fade effect is perceptible. In the next text a method for removing this effect based on the 3D DCT coder modifications is described.

English abstract

This paper deals with the properties of a compression method based on the 3D DCT. During the video compression process with 3D DCT the image data are transformed into frequency domain and the cross-correlation between adjacent pixels and even between frames is being removed without any quality loss. By implementing the quantization and thresholding operations, the number of 3D DCT coefficients is reducing. The situation is even worse while a group of encoded frames contains several types of video sequences, i.e. the cut is presents. In decompressed sequence the disturbing cross-fade effect is perceptible. In the next text a method for removing this effect based on the 3D DCT coder modifications is described.

Keywords

Compression, video signal, 3D DCT, cross-fade effect elimination, improving quality

RIV year

2006

Released

07.06.2006

Publisher

Croatian Society Electronics in Marine

Location

Zadar (Croatia)

ISBN

953-7044-03-3

Book

Proceedings ELMAR-2006

Pages from

89

Pages to

93

Pages count

5

URL

BibTex


@inproceedings{BUT18552,
  author="Tomáš {Frýza}",
  title="Improving Quality of Video Signals Encoded by 3D DCT Transform",
  annote="This paper deals with the properties of a compression method based on the 3D DCT. During the video compression process with 3D DCT the image data are transformed into frequency domain and the cross-correlation between adjacent pixels and even between frames is being removed without any quality loss. By implementing the quantization and thresholding operations, the number of 3D DCT coefficients is reducing. The situation is even worse while a group of encoded frames contains several types of video sequences, i.e. the cut is presents. In decompressed sequence the disturbing cross-fade effect is perceptible. In the next text a method for removing this effect based on the 3D DCT coder modifications is described.",
  address="Croatian Society Electronics in Marine",
  booktitle="Proceedings ELMAR-2006",
  chapter="18552",
  howpublished="print",
  institution="Croatian Society Electronics in Marine",
  year="2006",
  month="june",
  pages="89--93",
  publisher="Croatian Society Electronics in Marine",
  type="conference paper"
}