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    "abstract": "A previous paper1 discussed the advantages of multi-level compositing when compared with “one layer at a time” techniques, and described the architecture of a system designed to provide multi-layer capabilities in the digital domain. This paper examines a number of issues which affect the quality of composited images in the digital domain, and solutions implemented in the Grass Valley Group Kaleidoscope and Kadenza systems.",
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    "authors": [
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        "affiliation": "The Grass Valley Group, Inc. Grass Valley, California",
        "bio": "Peter Symes graduated from the University College of North Wales, Bangor, in 1967 and joined the Studio Capital Projects Department of the British Broad casting Corp. He worked on planning and installation of studios andcentral areas until 1973, when he joined Pye TVI's Limited as an are a manager. He subsequently became Pye TVTs product manager for Central Dynamics equipment, and in 1976 joined Central Dynamics in Montreal, initially in international sales and thenas product manager. In 1983, Symes joined Grass Valley Group. He works as a product planning engineer for the marketing department of Production Systems Division, and his responsibilities include the 300-line of production switchers, the Kaleidoscope digital effects system, and the Kadenza digital picture processor.",
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    "docTitle": "Real-Time Multi-Level Digital Compositing—Quality Issues",
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