Gilles Nocture

MUPCOS: A multi-purpose coding scheme

Abstract The PTT Research/Philips LEP proposal to MPEG for coding of CCIR 601 videosignals at bit-rates of about 2–10 Mbit/s is presented. It is a hybrid DCT scheme with field processing and a multi-layer approach in the bitstream. Therefore a high flexibility is obtained, where several features can be included or omitted, whichever is desired for a specific service. The most specific feature of this proposal is that compatibility to the MPEG1 or H.261 standards can be included by an embedded bitstream according to these standards, while the decoders do not need an additional prediction loop for this. Further provided features are random access, smooth fast forward, smooth fast backward, low end-to-end delay and ATM cell loss resilience, utilizing the multi-layer structure.

Video compression for digital television applications

Abstract Developments in video compression and VLSI technologies are producing revolutionary changes in the television industry. Television signals worldwide are beginning to be compressed, encoded and transmitted using digital means. Using digital compression, encoding and transmission techniques has the advantage of better bandwidth utilization, flexibility and ease of integration with other digital data, and an overall higher quality of video at the receiver. The purpose of this paper is two-fold. Firstly, an introduction to video compression in the context of emerging digital television standards is provided. The important role played by International Standards, specifically MPEG, in the development of digital television systems is discussed. Secondly, current trends in the use of compression in the development of digital television for deployment in the United States and Europe, and the participation of Philips in these new applications, are discussed.

MPEG-2 video encoders for broadcast applications

Abstract Philips Research has been very active in the field of digital video compression for several years. It has recently participated in the specification of the MPEG-2 Video Standard, and has designed a real time MPEG-2 video encoder now available as a Philips product.