COMPATIBLE SPATIOTEMPORAL SUBBAND ENCODING OF HDTV

Compatibility among video contribution and distribution standards is becoming increasingly important due to emerging new services in broadband communication networks. This paper introduces three compatible video data compression systems that are based on spatio-temporal subband decompositions. The first system provides for spatial compatibility of video services having different resolutions. The other two systems provide also for temporal compatibility, thus supporting hierarchies of video standards including both progressively scanned and interlaced signals. Simulations show that high-quality results and good compression ratios can be obtained in general.