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  "docId": "10.5594-j18499",
  "document": {
    "abbrevTitle": "SMPTE Mot. Imag J.",
    "abbrevTitle$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "abstract": "Google has recently finalized a next-generation open-source video codec called VP9, as part of the libvpx repository of the WebM project (http://www.webmproject.org/). Starting from the VP8 video codec released by Google in 2010 as the baseline, various enhancements and new tools were added, resulting in the next-generation bit stream VP9. The bit stream was finalized with the exception of essential bug fixes in June 2013. Prior to the release, however, all technical developments were being conducted openly in the public experimental branch of the repository for many months. This paper provides a brief technical overview of the coding tools included in VP9, along with coding performance comparisons with other state-of-the-art video codecs—namely, H.264/AVC and HEVC—on standard test sets. While a completely fair comparison is impossible to conduct because of the limitations of the respective encoder implementations, the tests show VP9 to be quite competitive with mainstream state-of-the-art codecs.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "articleType": "orig-research",
    "articleType$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "authors": [
      "Debargha Mukherjee",
      "Jingning Han",
      "Jim Bankoski",
      "Ronald Bultje",
      "Adrian Grange",
      "John Koleszar",
      "Paul Wilkins",
      "Yaowu Xu"
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "copyright": {
      "holder": "Society of Motion Picture and Television Engineers, Inc.",
      "holder$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      },
      "year": "2015",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "docId": "10.5594-j18499",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from DOI 10.5594/j18499",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "docLabel": "SMPTE Motion Imaging Journal ( Volume: 124, Issue: 1, January 2015)",
    "docLabel$meta": {
      "confidence": "medium",
      "note": "Composed from journal title, volume, issue and date",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "docTitle": "A Technical Overview of VP9—The Latest Open-Source Video Codec",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "docType": "Journal Article",
    "docType$meta": {
      "confidence": "high",
      "note": "journal_metadata XML — SMPTE journal paper",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "doi": "10.5594/j18499",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "href": "https://doi.org/10.5594/j18499",
    "href$meta": {
      "confidence": "high",
      "note": "Constructed from DOI 10.5594/j18499",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "issn": {
      "electronic": "2160-2492",
      "electronic$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      },
      "print": "1545-0279",
      "print$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      }
    },
    "issn$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "journalAcronym": "MIJR",
    "journalAcronym$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "number": "1",
    "number$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "pages": "44–54",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "publicationDate": "2015-01-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Day absent in source — padded to 01",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "high",
      "note": "Normalised to registry \"SMPTE\" convention from publisher-name (SMPTE)",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "publisherLocation": {
      "city": "White Plains, NY",
      "city$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      },
      "country": "USA",
      "country$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      }
    },
    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Mapped from article_status=\"active\"",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      }
    },
    "volume": "124",
    "volume$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/ALLEN PRESS/DELIVERED TO IEEEE/Allen Press source from FTP/12401-mijr-2015/MIJR124Vol124No1-issue-metadata.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
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