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VIDEOMD

教授：張迺貞 老師教授：張迺貞 老師組員：劉仁翔組員：劉仁翔　　　王憲章　　　王憲章　　　林黃瑋（報告者）　　　林黃瑋（報告者）

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大綱What is VideoMD

VideoMD Data DictionaryVideo Technical Metadata Extension Schema

VIDEOMD 現況PB Core

結論參考文獻

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What is VideoMD全名： Video Technical Metadata Extension Schema

源起：由美國國會圖書館所設計 VMD is a set of technical data elements required to manage digital video files. (VMD 是一個管理數位視訊檔案的技術資料元素表 )

VIDEOMD 有 36 個元素，是為了數位圖書館計畫和典藏數位化視訊資料而設計2006 年 Megan Bibb 和 Jennifer Colby 對於視訊數位物件的詮釋資料報告中，有討論到 VideoMD 。它是適用在視訊檔案資訊上，例如位元率和壓縮等。

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VideoMD Data Dictionary (1/2)

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VideoMD Data Dictionary (2/2)

Field Name Field Definitionaspect_ratio Desired aspect ratio of the image on screenbits_per_sample Number of bits per sample depthcalibration_ext_int Indicator that the calibration information is contained within the file or externallycalibration_location Temporary location of the calibration file if it is externalcalibration_type Type of calibration useddata_rate Data rate of the audio in an MPEG or other compressed file expressed in mbpsdata_rate_mode Indicator that the data rate of the video is fixed or variableduration Elapsed time of the entire file, expressed using ISO 8601 syntax (hh:mm:ss, where hh is 00 through 23)frame_rate Number of frames per second at which the video source item was digitizednote Additional information or comments about the video filepixels_horizontal Horizontal size of a frame in picture elementspixels_vertical Vertical size of a frame in picture elementsresolution Resolution of digital video source item expressed as horizontal linessampling Video sampling format in terms of luminance and chrominancescan Indication of whether digital video item is scanned in an interlaced or progressive modesound Indicator of the presence of sound in the video file (yes/no)

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Video Technical Metadata Extension Schema (1/2)

屬性

URI Namespace

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Video Technical Metadata Extension Schema (2/2)

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VIDEOMD 現況VMD Schema 現階段仍不夠完善 PB Core ：

Public Broadcasting Metadata Dictionary美國廣播與電視界正在發展中

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PB Core (1/2)

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PB Core (2/2)

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結論目前尚未有一個效率的視訊 Metadata ，VideoMD 也還未成為標準期待日後能發展出一個有效率的視訊Metadata 新技術的出現

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參考文獻1.張迺貞等 (2008)。美國國會圖書館數位保存雛型計畫技術探討—訪談美國國家視聽保存中心 Carl Fleischhauer。中華民國圖書館學會會訊，第 16卷，第 25-32頁。

http://www.lac.org.tw/admin/ArticleFolder/1/148/149期/國圖-148-149-03-1-張迺貞.pdf2. MoPark Initiative Metadata Options Appraisal

http://eprints.rclis.org/2278/2/00000Moparkmetoptappraisalfinal.pdf3.<METS> METADATA ENCODING AND TRANSMISSION STANDARD: PRIMER AND REFERENCE MANUAL

http://www.loc.gov/standards/mets/METS%20Documentation%20final%20070930%20msw.pdf4. Metadata for digital libraries: state of the art and future directions

http://www.jisc.ac.uk/media/documents/techwatch/tsw_0801pdf.pdf5. Metadata for Audiovisual Materials and its Role in Digital Projects

http://www.notsl.org/OLAC-MOUG/PDFs/MetadataHandout.pdf6. Appendix I Multimedia Metadata Extension Schemas

https://pacer.ischool.utexas.edu/bitstream/2081/8849/1/A-I--MultiMeta.doc7. BIBB, MEGAN (2006) , DIGITIZED MOVING IMAGE METS SIP PROFILE https://pacer.ischool.utexas.edu/bitstream/2081/2109/1/Digitized_Moving_Image_%20METS_SIP_Profile.doc8. Colby, Jennifer (2006) , Born Digital Moving Image METS SIP Profile

https://pacer.ischool.utexas.edu/bitstream/2081/2088/2/Metadata.doc9. Audio-Visual Prototyping Project─VideoMD Data Dictionary

http://www.loc.gov/rr/mopic/avprot/DD_VMD.html

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