Coding of moving video at 1 mbit/s: movies on CD

Bernd Huertgen; Michael Gilge; Wolfgang Guse

doi:10.1117/12.24123

1 September 1990 Coding of moving video at 1 mbit/s: movies on CD

Bernd Huertgen, Michael Gilge, Wolfgang Guse

Proceedings Volume 1360, Visual Communications and Image Processing '90: Fifth in a Series; (1990) https://doi.org/10.1117/12.24123
Event: Visual Communications and Image Processing '90, 1990, Lausanne, Switzerland

Abstract

A coder concept for coding of digital television sequences at 1 Mbit/s is presented. Emerging from the standard hybrid codec for videophone at 64 kbit/s an advanced concept has been investigated which considers the special properties of real world image sequences like unrestricted motion, zoom/pan, changes of illumination and scene cuts. These effects, which cannot be considered for videophone applications because of the extremly low available data rate, make it necessary to extend the standard hybrid coding scheme for 64 kbit/s. To reduce the amount of data the original image sequence in CCIR Rec. 601 format is spatially and temporarily subsampled. The resulting sequence is in accordance with the Common Intermediate Format (CIF) but consists of 25 noninterlaced frames/second. Motion estimation and compensation are improved by applying an algorithm for illumination correction. Additionally zoom and pan, which is widely used in common TV-scenes, is compensated by processing the motion vector field of the previous motion estimation. Scene cuts are detected and considered by intraframe coding of the next frame. Besides every 10th frame is intraframe coded to allow fast forward and reverse searching start at any arbitrary point within the sequence.

Citation Download Citation

Bernd Huertgen, Michael Gilge, and Wolfgang Guse "Coding of moving video at 1 mbit/s: movies on CD", Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); https://doi.org/10.1117/12.24123

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