Hierarchical transform coding using NURBS approximation

Author

Polec, Jaroslav ; Ondruaová, Sandra ; Kotuliaková, Kvetoslava ; Heleaová, Natália ; Karlubikova, T.

Author_Institution

Dept. of Telecommuniactions, Slovak Univ. of Technol. Bratislava, Bratislava

Volume

1

fYear

2008

fDate

10-12 Sept. 2008

Firstpage

65

Lastpage

68

Abstract

A scheme of utilizing shape independent basis functions for the hierarchical multiresolution image compression is shown. First, the input image is segmented and its segmentspsila boundaries are NURBS approximated, thus achieving an image mask. Second, this image mask and the image are used as the input of the tree-level hierarchical encoder. Hierarchical encoder subsamples image and image mask and encodes them shape independently. Another compression mode is, hence, successfully introduced for shape independent transform coding.

Keywords

data compression; image coding; image segmentation; transform coding; NURBS approximation; hierarchical multiresolution image compression; hierarchical transform coding; image compression mode; image mask; segment boundaries; shape independent basis functions; tree-level hierarchical encoder; Decoding; Image coding; Image resolution; Image segmentation; Shape; Spline; Streaming media; Surface reconstruction; Surface topography; Transform coding; hierarchical multiresolution encoding; image compression; shape independent transform;

fLanguage

English

Publisher

ieee

Conference_Titel

ELMAR, 2008. 50th International Symposium

Conference_Location

Zadar

ISSN

1334-2630

Print_ISBN

978-1-4244-3364-3

Type

conf

Filename

4747439