Izvedba i optimizacija video algoritama prema normi MPEG-4 za prijenosne multimedijske uređaje

scientific master's theses

• Title (english): Implementation and Optimization of MPEG-4 Video Algorithms for Mobile Multimedia Devices
• Author: Krešimir Đuračić
• Mentor: Mario Kovač (mentor)
• Committee member: Mario Žagar (član povjerenstva)
• Committee member: Mario Kovač (član povjerenstva)
• Committee member: Željko Hocenski (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; (Department of Control and Computer Engineering); Zagreb
• Defense date and country: 2002-06-04, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing; Process Computing
• Universal decimal classification (UDC): 004 - Computer science and technology. Computing. Data processing

Abstract

Rad predlaže niz optimizacija vezanih uz implementaciju MPEG-4 video algoritama na računalnim platformama baziranim na ARM arhitekturi procesora. Prikazani su osnovni principi najvažnijih algoritama za kompresiju video zapisa temeljenih na nizu MPEG normi. Proučen je ljudski vidni sustav radi boljeg razumijevanja osnovnih principa računalne video kompresije. Razmotreni su kritični dijelovi algoritama i karakteristike ciljne ARM arhitekture u svrhu što bolje mogućnosti optimizacije istih. Dan je pregled ključnih karakteristika MPEG-4 norme i odabrani su ključni alati prikladni za izvedbu video algoritama na prijenosnim multimedijskim platformama izgrađenih oko ARM arhitekture procesora. Implementiranjem MPEG-4 video algoritama i primjenom dodatnih optimizacija vezanih za kritične algoritme, odnosno testiranjem samog MPEG-4 video dekodera pokazana je opravdanost odabira ključnih algoritama i niza optimizacija čijom se primjenom dobio visoki faktor poboljšanja performansi uz zadržavanje kvalitete u odnosu na početnu, standardnu verziju implementacije.

Abstract (english)

This master thesis proposes a set of optimizations for implementation of MPEG-4 video algorithms on ARM architecture based platforms. There are shown basic principles of video compression based on the MPEG standards. For better understanding of basic principles of video compression there is given examination of the human visual system. Critical algorithms and ARM architecture are analyzed for the purpose of choosing the best optimization methods. Key characteristics of the MPEG-4 standard are explained. Appropriate development tools are chosen for implementation of video algorithms on mobile multimedia platforms, based on ARM architecture processors. Proposed implementation of MPEG-4 video algorithms with application of additional optimizations and appliance testing, presented significant improvements compared to implementation of standard MPEG-4 video algorithm.

• Keywords: Ljudski vidni sustav; digitalni video; MPEG; MPEG-4; kompresija podataka; ARM; MMX; optimizacija; VOP
• Keywords (english): Human visual system; digital video; MPEG; MPEG-4; data compression; ARM; MMX; optimization; VOP
• Language: croatian
• URN:NBN: urn:nbn:hr:168:577014
• Study programme: Title: Postgraduate master programe in computing; Study programme type: university; Study level: postgraduate; Academic / professional title: magistar inženjer računarstva (magistar inženjer računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-04-26 12:06:31