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Proceedings Paper

Hybrid DCT-codec with local adaptivity for the interlaced HDTV transmission with 140 Mbit/s
Author(s): Wieland Jass; Robert Kutka; Walter Tengler
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Paper Abstract

With a HDTV coding method for the interlaced format, that is based on the DCT, mechanisms for local adaptivity are described. There are two alternative adaption methods regarding the special situation with the interlaced format. Further mechanisms concern quality parameters as a spatial frequency cut-off and the quantizer step size which adapt to the local image content. Results of a study which compares the different adaptive approaches show the influence on the image quality. So already a high degree of quality can be obtained. The application of a new motion compensation method between the fields adds essential further quality reserves.

Paper Details

Date Published: 1 June 1990
PDF: 11 pages
Proc. SPIE 1244, Image Processing Algorithms and Techniques, (1 June 1990); doi: 10.1117/12.19528
Show Author Affiliations
Wieland Jass, Siemens AG (Germany)
Robert Kutka, Siemens AG (Germany)
Walter Tengler, Siemens AG (Germany)


Published in SPIE Proceedings Vol. 1244:
Image Processing Algorithms and Techniques
Robert J. Moorhead; Keith S. Pennington, Editor(s)

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