Rate control of foveated MPEG video

Author

Reeves, T.H. ; Robinson, J.A.

Author_Institution

Dept. of Syst. Design Eng., Waterloo Univ., Ont., Canada

Volume

1

fYear

1997

fDate

25-28 May 1997

Firstpage

379

Abstract

Adaptive foveated coding provides user-adjustable video quality at very flexible bit rates by prioritizing image regions. While viewing the video, the user can adjust the relative image fidelity in the high priority fovea region compared to the low priority periphery. We present a bit rate adaption system that reacts to user input to tradeoff foveal spatial resolution against peripheral spatial resolution appropriately, while controlling the output video´s bit rate. The rate adaptor relies on a mathematical model of the bit rates required to support the different foveal spatial resolution/peripheral spatial resolution combinations

Keywords

adaptive codes; adaptive signal processing; channel capacity; code standards; data compression; image resolution; image segmentation; telecommunication control; telecommunication standards; video coding; adaptive foveated coding; bit rate adaption system; bit rate adaptor; bit rate control; foveal spatial resolution; foveated MPEG video; high priority fovea region; image fidelity; image regions; mathematical model; peripheral spatial resolution; quality of service parameters; user adjustable video quality; user input; Bit rate; Design engineering; Image coding; Meteorology; Quality of service; Size control; Spatial resolution; Systems engineering and theory; Transcoding; Video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on

Conference_Location

St. Johns, Nfld.

ISSN

0840-7789

Print_ISBN

0-7803-3716-6

Type

conf

DOI

10.1109/CCECE.1997.614868

Filename

614868