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undergraduate thesis
Diskretna kosinusna transformacija (DTC)
2014. urn:nbn:hr:200:116739
Jerkić, Darko
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Software Engineering
Chair of Visual Computing

Cite this document

Jerkić, D. (2014). Diskretna kosinusna transformacija (DTC) (Undergraduate thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:116739

Jerkić, Darko. "Diskretna kosinusna transformacija (DTC)." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2014. https://urn.nsk.hr/urn:nbn:hr:200:116739

Jerkić, Darko. "Diskretna kosinusna transformacija (DTC)." Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2014. https://urn.nsk.hr/urn:nbn:hr:200:116739

Jerkić, D. (2014). 'Diskretna kosinusna transformacija (DTC)', Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 25 November 2021, https://urn.nsk.hr/urn:nbn:hr:200:116739

Jerkić D. Diskretna kosinusna transformacija (DTC) [Undergraduate thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2014 [cited 2021 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:200:116739

D. Jerkić, "Diskretna kosinusna transformacija (DTC)", Undergraduate thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2014. Available at: https://urn.nsk.hr/urn:nbn:hr:200:116739

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Metadata
TitleDiskretna kosinusna transformacija (DTC)
Title (english)Discrete cosine transform (DCT)
AuthorDarko Jerkić
MentorIrena Galić (mentor)
Committee memberIrena Galić (predsjednik povjerenstva)
Committee memberHrvoje Glavaš (član povjerenstva)
Committee memberJosip Job (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Software Engineering)
(Chair of Visual Computing)
Osijek
Defense date and country2014-10-06, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Program Engineering
Abstract
Kao i druge transformacije, diskretna kosinusna transformacija (DCT) nastoji dekorelirati podatke slike. Nakon dekorelacije svaki transformirani koeficijent može biti kodiran neovisno bez gubitka učinkovitosti kompresije. Karakteristike dekorelacije DCT-a bi treble rezultirati smanjenjem entropije slike. To će, zauzvrat, smanjiti broj bitova potrebnih za prikazivanje slike. Osnovna prednost transformacije slike je uklanjanje redudancije između susjednih piksela. Vrijednosti piksela u jednoj sličici se mogu iskoristiti za predviđanje susjednih piksela naredne sličice. Sličice u video isječku pokazuju veliku vremensku korelaciju. Upravo ovu vremensku korelaciju koristi većina suvremenih sustava za obradu videa. DCT ima nadmoć nad bilo kojim drugim transformacijama slika (Karhunen-Loeve-ovom transformacijom (KLT), diskretnom Fourier-ovom transformacijom (DFT)).
Abstract (english)
Like other transforms, the Discrete Cosine Transform (DCT) attempts to decorrelate the image data. After decorrelation each transform coefficient can be encoded independently without losing compression efficiency. The decorrelation characteristics of DCT should render a decrease in the entropy (or selfinformation) of an image. This will, in turn, decrease the number of bits required to represent the image. The principle advantage of image transformation is the removal of redundancy between neighboring pixels. Pixel values in one frame can be used to predict the adjacent pixels of the next frame. Frames in a video sequence exhibit high temporal correlation. This temporal correlation is employed by most contemporary video processing systems. DCT has the superiority over any other image transforms (The Karhunen-Loeve Transform (KLT), Discrete Fourier Transform (DFT)).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:116739
Study programmeTitle: Undergraduate University Study Programme in Computer Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
Type of resourceText
File originBorn digital
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Created on2016-06-14 08:27:24