{ "$schema": "/api/schemas/documents.schema.json", "apiVersion": "1.0.0", "generatedAt": "2026-07-09T21:16:49.031Z", "sourcePath": "src/main/data/docs", "docId": "10.5594-M001279", "document": { "abstract": "Digital compression techniques are applied to video signals to allow their transmission and distribution through a number of media to the viewer. Systems based on transform techniques have been developed for different applications: from videophone to transmission of TV and HDTV with contribution quality. A brief overview of the basic algorithms adopted for the compression is given: transform (DCT) and sub-band coding, entropy coding and motion evaluation and compensation. The importance of adopting suitable test material to evaluate the coding systems is discussed. In addition, the paper mentions the issues presently debated in standardization bodies and international projects: multilevel approaches, to provide various levels of resolution and quality for applications ranging from mobile video to HDTV, and the benefits that the adoption of progressive scanning formats could provide in terms of coding efficiency and picture quality.", "abstract$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001279.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "authors": [ { "affiliation": "Centro Ricerche, RAI - Radiotelevisione Italiana, Corso Giambone 68, I 10135 Torino, Italy", "name": "Marzio Barbero" }, { "affiliation": "Centro Ricerche, RAI - Radiotelevisione Italiana, Corso Giambone 68, I 10135 Torino, Italy", "name": "Mario Stroppiana" } ], "authors$meta": { "confidence": "high", "note": "Object form (schema 2.3.0) migrated from string form via migrateAuthorsToObjectForm.js; bio/affiliation backfilled from _source/SMPTE/HIGHWIRE/ NLM ++", "source": "parsed", "updated": "2026-06-23T00:04:25.562Z", "version": "authors-migrate-object-form@v1" }, "contentType": "orig-research", "contentType$meta": { "confidence": "high", "note": "Canonical-confirmed full paper (summary-abstract set is orig-research in the SMPTE canonical repos); HIGHWIRE-era abstract label was a delivery artifact", "originalValue": "summary-abstract", "source": "resolved", "updated": "2026-07-09T19:12:47.628Z", "version": "contenttype-fixes@v1" }, "copyright": { "holder": "Society of Motion Picture and Television Engineers, Inc.", "holder$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001279.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "year": "1994", "year$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001279.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" } }, "copyright$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001279.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docId": "10.5594-M001279", "docId$meta": { "confidence": "high", "note": "Derived from DOI 10.5594/M001279", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docLabel": "SMPTE Meetings and Conferences ( January 1994)", "docLabel$meta": { "confidence": "medium", "note": "Composed from venue title, volume/issue and date", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docTitle": "Video Compression Techniques and Multilevel Approaches", "docTitle$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/ORIGINAL SAMPLES/Conferences/smptem_1994_1/smptem_1994_1.xml/10.5594_M001279.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-conference-paper-nlm@v1" }, "docType": "Conference Paper", "docType$meta": { "confidence": "high", "note": "NLM
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