{ "$schema": "/api/schemas/documents.schema.json", "apiVersion": "1.0.0", "generatedAt": "2026-07-09T21:16:49.031Z", "sourcePath": "src/main/data/docs", "docId": "10.5594-J16807", "document": { "abbrevTitle": "J SMPTE", "abbrevTitle$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "abstract": "The motivation for contemporary efforts towards the development of improved television systems is presented. The impossibility of obtaining substantial improvements by straight-forward means, such as increasing the line and frame rates, without excessive bandwidth expansion, is discussed. The television process is described as a linear system whose task is the transmission of a “video function”, which is continuous in x, y, and t. The fidelity requirements for the transmission of the video function are related to the psychophysical properties of the human visual system, which are reviewed. Making use of the prospects of quite complicated signal processing through developments in semiconductor technology, a series of possibilities for improved systems is explored. Some of these proposed methods take advantage of the spatio-temporal characteristics of the video function which are inherent in its role as the conveyor of picture information to human viewers. Others deal with the special characteristics of TV cameras and displays as perceptual information processors and make use of signal processing to improve their performance.", "abstract$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "authors": [ { "affiliation": "Massachusetts Institute of Technology Cambridge, Massachusetts 02139", "bio": "William F. Schreiber was born in New York City in 1925. He received the B.S. and M.S. degrees in Electrical Engineering from Columbia and the Ph.D. in Applied Physics in 1953 from Harvard University. Dr. Schreiber was a junior engineer at Sylvania from 1947–1949. From 1953 to 1959 he directed electronicsm research at Technicolor Corp. Since 1959 he has been with MIT, where he is Professor of Electrical Engineering. From 1964 to 1966 he was Visiting Professor of Electrical Engineering at the Indian Institute of Technology, Kunpur, India, and in 1980–1981 he was half-time Visiting Professor at the University of Quebec, Montreal, Canada. Since 1948 Dr. Schreiber's major professional interest has been in picture coding and transmission systems. He is associated with the Cognitive Information Processing Group of the Research Laboratory of Electronics at MIT where an active program in this field is under way. He has also served as consultant on image transmission systems to a number of industrial and government laboratories.", "name": "William F. Schreiber" } ], "authors$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$meta": { "confidence": "high", "note": "Cross-filled from SMPTE canonical repository import (smpte-canonical-audit/canonicalLibrary.*.json); previous value was a placeholder", "originalValue": "other", "source": "parsed", "updated": "2026-07-07T23:39:31.295Z", "version": "smpte-canonical-repo@v1" }, "copyright": { "holder": "Society of Motion Picture and Television Engineers, Inc.", "holder$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "year": "1984", "year$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" } }, "copyright$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "docId": "10.5594-J16807", "docId$meta": { "confidence": "high", "note": "Derived from DOI 10.5594/J16807", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "docLabel": "SMPTE Journal ( Volume: 93, Issue: 1A, January 1984)", "docLabel$meta": { "confidence": "medium", "note": "Composed from venue title, volume/issue and date", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "docTitle": "Psychophysics and the Improvement of TV Image Quality", "docTitle$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "docType": "Journal Article", "docType$meta": { "confidence": "high", "note": "NLM
— SMPTE journal paper", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "doi": "10.5594/J16807", "doi$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "href": "https://doi.org/10.5594/J16807", "href$meta": { "confidence": "high", "note": "Constructed from DOI 10.5594/J16807", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "issn": { "print": "0036-1682", "print$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" } }, "issn$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "journalAcronym": "MIJR", "journalAcronym$meta": { "confidence": "high", "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07132015 BACKFILE FOR JOURNAL/smptej_93_1A/MIJR15Vol93No1A.xml)", "source": "parsed", "updated": "2026-06-17T00:17:09.425Z", "version": "smpte-journal-issue-xml@v1" }, "journalTitle": "SMPTE Journal", "journalTitle$meta": { "confidence": "high", "note": "Era-accurate journal title from SMPTE canonical repository (periodical parent at time of publication) (smpte-canonical-audit/canonicalLibrary.*.json)", "originalValue": null, "source": "parsed", "updated": "2026-07-08T00:35:38.133Z", "version": "smpte-canonical-repo@v1" }, "number": "1A", "number$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "pages": "36–53", "pages$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "publicationDate": "1984-01-01", "publicationDate$meta": { "confidence": "high", "note": "Day absent in NLM source — padded to 01", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "publisher": "SMPTE", "publisher$meta": { "confidence": "high", "note": "Normalised to registry \"SMPTE\" convention from NLM publisher-name (The Society of Motion Picture and Television Engineers)", "source": "inferred", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "publisherLocation": { "city": "White Plains, NY", "city$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "country": "USA", "country$meta": { "confidence": "high", "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/DL Project Files/07132015 BACKFILE FOR JOURNAL/smptej_93_1A/MIJR15Vol93No1A.xml)", "source": "parsed", "updated": "2026-06-17T00:17:09.425Z", "version": "smpte-journal-issue-xml@v1" } }, "publisherLocation$meta": { "confidence": "high", "note": "Parsed from NLM article XML (_source/SMPTE/HIGHWIRE/Source Bak/smptej/10.5594_J16807.xml)", "source": "parsed", "updated": "2026-05-22T21:44:19.125Z", "version": "smpte-journal-article-nlm@v1" }, "references": { "bibliographic": [ "orphan/10.5594-J16807/bibr1-10.5594_J16807", "orphan/10.5594-J16807/bibr2-10.5594_J16807", "orphan/10.5594-J16807/bibr3-10.5594_J16807", 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