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master's thesis
Analiza složenosti HEVC postupka kodiranja
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. urn:nbn:hr:168:691423
Ostrež, Leon
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

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Ostrež, L. (2015). Analiza složenosti HEVC postupka kodiranja (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:691423

Ostrež, Leon. "Analiza složenosti HEVC postupka kodiranja." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:691423

Ostrež, Leon. "Analiza složenosti HEVC postupka kodiranja." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:691423

Ostrež, L. (2015). 'Analiza složenosti HEVC postupka kodiranja', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 19 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:691423

Ostrež L. Analiza složenosti HEVC postupka kodiranja [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2015 [cited 2024 December 19] Available at: https://urn.nsk.hr/urn:nbn:hr:168:691423

L. Ostrež, "Analiza složenosti HEVC postupka kodiranja", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:168:691423

Metadata
TitleAnaliza složenosti HEVC postupka kodiranja
Title (english)Complexity analysis of HEVC coding method
AuthorLeon Ostrež
MentorSonja Grgić (mentor)
Committee memberSonja Grgić (predsjednik povjerenstva)
Committee memberTomislav Kos (član povjerenstva)
Committee memberEmil Dumić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2015-07-09, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
H.265, odnosno HEVC, je norma za kompresiju videosekvenci koja polako počinje zamijenjivati dosadašnju H.264/AVC normu. U ovom radu obrađeni su osnovni elementi kodera: podjela slike, predviđanje slike, tranformacijsko i entropijsko kodiranje, te je norma uspoređena sa prethodnom H.264/AVC normom. Provedena su testiranja u ffmpeg programu na različitim sekvencama koje su kodirane različitim parametrima da bi se vidjelo kako oni utječu na složenost kodiranja i na kvalitetu slike. Utvrđeno je da porast brzine prijenosa povećava vrijeme kodiranja i kvalitetu slike odnosno SSIM i PSNR vrijednosti. Također biranje unaprijed postavljenih postavki utječe na sve segmente. Pokazalo se da je ultrafast postavka dosta smanjuje složenost kodiranja, ali i daje najmanju kvalitetu slike. Medium postavka malo povećava vrijeme kodiranja i kvalitetu kompresije u odnosu na ultrafast, dok slower jako puno utječe na povećanje složenosti i daje malo povećanje kvalitete slike.
Abstract (english)
H.265, or HEVC, is standard for compresion of video files that is starting to take place of H.264/AVC standard. In this paper are introduced main parts of coder: picture partitioning, picture prediction, transform coding and entropy coding. This standard is also compared to previous H.264 standard. Testings are made using ffmpeg program with various videos that are coded with different parameters so that we could see how they influence on coding complexity and picture quality. Results show that increasing bitrate gives better picture quality (SSIM and PSNR) and longer coding time. Also different presets affect all segments. It is shown that ultrafast preset lowers complexity of coding a lot, but gives lowest picture quality. Medium preset increases time of coding and compression quality by little comparing to ultrafast, while slower preset influence a lot on complexity and gives little quality increase.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:691423
Study programmeTitle: Information and Communication Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije (magistar/magistra inženjer/inženjerka informacijske i komunikacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2018-02-06 11:01:46