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racfor_wiki:datoteke_i_datotecni_sustavi:analiza_mpeg_formata [2020/01/10 04:14]
drazum [MPEG-1] |
racfor_wiki:datoteke_i_datotecni_sustavi:analiza_mpeg_formata [2024/12/05 12:24] (trenutno)
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| ===== Sažetak ===== | ===== Sažetak ===== |
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| Mediji za pohranu malih memorija i niske brzine prijenosa mrežama potaknuli su razvoj algoritama kojima je omogućena određena kompresiju podataka. Kompresijom podataka smanjuje se potrebni fizički prostor za pohranu podatka pomoću određenih metoda, čime se također dobiva brža distribucija mrežom. Ovaj rad opisuje postupke smanjivanja videosekvenci koristeći neke od MPEG standarda. Dan je kratki pregled MPEG-1, MPEG-2 i MPEG-4 normi koje se koriste za kodiranje MPEG video datoteke. | Mediji za pohranu malih memorija i niske brzine prijenosa mrežama potaknuli su razvoj algoritama kojima je omogućena određena kompresija podataka. Kompresijom podataka smanjuje se potrebni fizički prostor za pohranu podatka pomoću određenih metoda, čime se također dobiva brža distribucija mrežom. Ovaj rad opisuje postupke smanjivanja videosekvenci koristeći neke od MPEG standarda. Dan je kratki pregled MPEG-1, MPEG-2 i MPEG-4 normi koje se koriste za kodiranje MPEG video datoteke. |
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| Ključne riječi: **MPEG**; **kodiranje videosignala**; **kompresija videosignala** | Ključne riječi: **MPEG**; **kodiranje videosignala**; **kompresija videosignala** |
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| * 25 Hz | * 25 Hz |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Luminantni signal: 360×288 elemenata slike</font> | * Luminantni signal: 360×288 elemenata slike |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Komponente krominantnog signala: 180×144 elemenata slike</font> | * Komponente krominantnog signala: 180×144 elemenata slike |
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| * 30 Hz | |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Luminantni signal: 360×240elemenata slike</font> | |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Komponente krominantnog signala: 180×120elemenata slike</font> | |
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| * 25 Hz | |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Luminantni signal: 360×288 elemenata slike</font> | |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Komponente krominantnog signala: 180×144 elemenata slike</font> | |
| * 30 Hz | * 30 Hz |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Luminantni signal: 360×240elemenata slike</font> | * Luminantni signal: 360×240elemenata slike |
| * <font 12pt/Calibri,sans-serif;;inherit;;inherit>Komponente krominantnog signala: 180×120elemenata slike</font> | * Komponente krominantnog signala: 180×120elemenata slike |
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| Kodiranje u MPEG normi organizirano je u šest slojeva: | Kodiranje u MPEG normi organizirano je u šest slojeva: |
| [1] [[https://mpeg.chiariglione.org/about|https://mpeg.chiariglione.org/about]] | [1] [[https://mpeg.chiariglione.org/about|https://mpeg.chiariglione.org/about]] |
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| [[https://books.google.hr/books?id=vVvJINURimIC&pg=PA462&lpg=PA462&dq=mpeg+hiroshi&source=bl&ots=EnWKx0pjyI&sig=ACfU3U10GVPgjcnbB5Z3u3koVrHT9iLtNg&hl=en&sa=X&ved=2ahUKEwjRvMnr3PTmAhWIC-wKHXzpAa8Q6AEwDHoECAoQAQ#v=onepage&q=mpeg hiroshi&f=false|[2] https://books.google.hr/books?id=vVvJINURimIC&pg=PA462&lpg=PA462&dq=mpeg+hiroshi&source=bl&ots=EnWKx0pjyI&sig=ACfU3U10GVPgjcnbB5Z3u3koVrHT9iLtNg&hl=en&sa=X&ved=2ahUKEwjRvMnr3PTmAhWIC-wKHXzpAa8Q6AEwDHoECAoQAQ#v=onepage&q=mpeg%20hiroshi&f=false]] | [2] E. Izquierdo. Digital Media Processing for Multimedia Interactive Services, 2003. |
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| [3] [[https://en.wikipedia.org/wiki/Video_coding_format|https://en.wikipedia.org/wiki/Video_coding_format]] | [3] [[https://en.wikipedia.org/wiki/Video_coding_format|https://en.wikipedia.org/wiki/Video_coding_format]] |
| [4] [[https://www.sciencedirect.com/topics/computer-science/video-compression-standard|https://www.sciencedirect.com/topics/computer-science/video-compression-standard]] | [4] [[https://www.sciencedirect.com/topics/computer-science/video-compression-standard|https://www.sciencedirect.com/topics/computer-science/video-compression-standard]] |
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| [5] [[http://dsp.etfbl.net/multimediji/09 GI Kompresija videa.pdf|http://dsp.etfbl.net/multimediji/09%20GI%20Kompresija%20videa.pdf]] | [5] Katedra za opću elektroniku BiH, Kompresija videa. |
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| [[http://www.vcl.fer.hr/dtv/mpeg/Data/3.htm|[6] http://www.vcl.fer.hr/dtv/mpeg/Data/3.htm]] | |
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| [[https://www.fer.unizg.hr/_download/repository/5_VT.pdf|[7] https://www.fer.unizg.hr/_download/repository/5_VT.pdf]] | |
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| [8] [[http://www.vcl.fer.hr/dtv/radovi/zovko_bihtel98.pdf|http://www.vcl.fer.hr/dtv/radovi/zovko_bihtel98.pdf]] | |
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| [9] <font 12pt/Calibri,sans-serif;;inherit;;inherit>A Brief Overview of MPEG2 Standard, Dr. David Corrigan</font> | |
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| [10] [[https://sound.media.mit.edu/resources/mpeg4/audio/general/w3156.pdf|https://sound.media.mit.edu/resources/mpeg4/audio/general/w3156.pdf]] | [6][[http://www.vcl.fer.hr/dtv/mpeg/Data/3.htm|http://www.vcl.fer.hr/dtv/mpeg/Data/3.htm]] |
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| [11] <font 12.0pt/inherit;;inherit;;inherit>ISO/IEC JTC1/SC29/WG11 Coding of Moving Pictures and Associated Audio Information, Requirements for the MPEG-4 Syntactic Description Language (SDL) - Draft in Progress Revision 1.0, March 1995.</font> | [7] [[https://www.fer.unizg.hr/_download/repository/5_VT.pdf|S]]. Grgić, Norma MPEG-2 za kompresiju videosignala |
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| <font 12pt/Calibri,sans-serif;;#44546a;;inherit>***</font> | [8] S. Grgić, B. Zovko-Cihlar, M. Grgić. Standardni postupci za kodiranje videosignala u multimedijskim komunikacijama |
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| [1] [[http://books.google.hr/books?id=mFJe8ZnAb3EC&printsec=frontcover#v=onepage&q&f=false|Plass, Jan L., Roxana Moreno, and Roland Brünken. Cognitive Load Theory. Cambridge University Press, 2010.]] | [9] D. Corrigan. A Brief Overview of MPEG2 Standard |
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| [2] [[http://www.google.com/books?id=duWx8fxkkk0C&printsec=frontcover#v=onepage&q&f=false|Mayer, Richard E. The Cambridge handbook of multimedia learning. Cambridge University Press, 2005.]] | [10] International Organisation for Standardisation ISO/IEC JTC1/SC29/WG11. Coding of Moving Pictures and Audio |
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| [3] [[http://www.cogtech.usc.edu/publications/kirschner_Sweller_Clark.pdf|Kirschner, P. A, Sweller, J. and Clark, R. E. Why minimal guidance during instruction does not work: An analysis of the failure of constructivist, discovery, problem-based, experiential, and inquiry-based teaching. Educational psychologist 41, no. 2, pp 75-86, 2006]] | [11] ISO/IEC JTC1/SC29/WG11 Coding of Moving Pictures and Associated Audio Information, Requirements for the MPEG-4 Syntactic Description Language (SDL), 1995. |
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