DCTlab: Educational Software for Still Image Compression and its Application in a Digital Television Course

DCTlab: Educational Software for Still Image Compression and its Application in a Digital Television Course

Current standards for the compression of still and moving images use Discrete Cosine Transform (DCT) to remove spatial redundancy in images. Students specialising in image and video system engineering need to know why DCT is important in their field of interest and to understand the influence of DCT...

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Veröffentlicht in:International journal of electrical engineering & education 2001-07, Vol.38 (3), p.187-198
Hauptverfasser: GRGIC, Mislav, GRGIC, Sonja, ZOVKO-CIHLAR, Branka
Format: Artikel
Sprache:eng
Schlagworte:
Academic Achievement
Algorithms
Coding
Computer Software
Curriculum subjects: programmes and methods
Educational sciences
Elective Courses
Mathematics
Redundancy
Scientific Concepts
Teaching methods
Technical education
Television
Video Equipment
Video Technology
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Beschreibung
Zusammenfassung:Current standards for the compression of still and moving images use Discrete Cosine Transform (DCT) to remove spatial redundancy in images. Students specialising in image and video system engineering need to know why DCT is important in their field of interest and to understand the influence of DCT-based image compression on picture quality. Therefore, we have developed educational software, called DCTlab, that helps students to analyse DCT application in still image compression systems. This paper describes software characteristics, its application in a digital television course and learning outcomes.
ISSN:0020-7209
2050-4578
DOI:10.7227/IJEEE.38.3.1