Article Free Access Share on A real-time scalable software video codec for collaborative applications over packet networks Authors: J. Hartung Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJ Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJView Profile , A. Jacquin Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJ Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJView Profile , J. Pawlyk Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJ Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJView Profile , K. L. Shipley Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJ Multimedia Communications Research Laboratory, Lucent Technologies, Bell Laboratories 600 Mountain Avenue Murray Hill, NJView Profile Authors Info & Claims MULTIMEDIA '98: Proceedings of the sixth ACM international conference on MultimediaSeptember 1998 Pages 419–426https://doi.org/10.1145/290747.290814Published:01 September 1998Publication History 8citation352DownloadsMetricsTotal Citations8Total Downloads352Last 12 Months3Last 6 weeks2 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF

This paper describes a prototype video coding platform meant for the conception and testing of multimedia products such as next-generation videophones. The platform is largely based on ITU-T Recommendation H.263, with a number of additional object-oriented quality enhancement features which make it especially well suited for very low bit-rate coding of "head-and-shoulders" video material typical of real-time multimedia applications, video teleconferencing, and video telephony. These features consist of: (1) segmentation into objects of interest, (2) segmentation-based prefiltering, (3) model-assisted rate control, (4) adaptive vector quantization, and finally (5) segmentation-based postfiltering. In the spirit of Recommendation H.263, these enhancements are modular and can be selectively turned on or off, thereby enabling a wide variety of coding modes.