Evaluation of lossless compression of Teletext and graphics images for TV systems

Peter H. N. de With; Mihaela v.d. Schaar-Mitrea

doi:10.1117/12.251311

16 September 1996 Evaluation of lossless compression of Teletext and graphics images for TV systems

Peter H. N. de With, Mihaela v.d. Schaar-Mitrea

Proceedings Volume 2952, Digital Compression Technologies and Systems for Video Communications; (1996) https://doi.org/10.1117/12.251311
Event: Advanced Imaging and Network Technologies, 1996, Berlin, Germany

Abstract

The diversity in the nature of TV images is increasing due to the mixing of graphics data with natural scenery. In this paper we study the lossless coding of such graphics data with the objective to come to recommendations for video compression of such images. For this purpose, a comparison has been made between contour coding, template coding and run-length coding of graphical imagery. It is concluded that template coding is suitable for TXT-like images but it is not practical for more generic graphics images. For menus and similar imagery, contour and run-length coding provide interesting options.

Citation Download Citation

Peter H. N. de With and Mihaela v.d. Schaar-Mitrea "Evaluation of lossless compression of Teletext and graphics images for TV systems", Proc. SPIE 2952, Digital Compression Technologies and Systems for Video Communications, (16 September 1996); https://doi.org/10.1117/12.251311

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