Data compression for light-field rendering

Author

Magnor, Marcus ; Girod, Bernd

Author_Institution

Telecommun. Lab., Erlangen-Nurnberg Univ., Germany

Volume

10

Issue

3

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

338

Lastpage

343

Abstract

Two light-field compression schemes are presented. The codecs are compared with regard to compression efficiency and rendering performance. The first proposed coder is based on video-compression techniques that have been modified to code the four-dimensional light-field data structure efficiently. The second coder relies entirely on disparity-compensated image prediction, establishing a hierarchical structure among the light-field images. The coding performance of both schemes is evaluated using publicly available light fields of synthetic, as well as real-world, scenes. Compression ratios vary between 100:1 and 2000:1, depending on the reconstruction quality and light-field scene characteristics

Keywords

discrete cosine transforms; image reconstruction; prediction theory; rendering (computer graphics); transform coding; vector quantisation; video codecs; video coding; DCT-coding; codecs; coding performance; compression efficiency; compression ratios; data compression; disparity-compensated image prediction; four-dimensional light-field data structure; hierarchical structure; light-field compression; light-field images; light-field rendering; light-field scene characteristics; real-world scenes; reconstruction quality; rendering performance; synthetic scenes; transform coding; vector quantization; video compression; Codecs; Computational modeling; Data compression; Image coding; Image reconstruction; Image segmentation; Layout; Lighting; Rendering (computer graphics); Two dimensional displays;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/76.836278

Filename

836278