Central Decoding for Multiple Description Codes based on Domain Partitioning
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| Název: | Central Decoding for Multiple Description Codes based on Domain Partitioning |
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| Autoři: | Spiertz, M., Rusert, T. |
| Zdroj: | Acta Polytechnica; Vol 46 No 4 (2006) ; Acta Polytechnica; Vol. 46 No. 4 (2006) ; 1805-2363 |
| Informace o vydavateli: | Czech Technical University in Prague |
| Rok vydání: | 2006 |
| Sbírka: | CTU Open Journal Systems (Czech Technical University, Prague / České vysoké učení technické v Praze) |
| Témata: | multiple description coding, domain based, scalar quantization, reconstruction, central decoder |
| Popis: | Multiple Description Codes (MDC) can be used to trade redundancy against packet loss resistance for transmitting data over lossy diversity networks. In this work we focus on MD transform coding based on domain partitioning. Compared to Vaishampayan’s quantizer based MDC, domain based MD coding is a simple approach for generating different descriptions, by using different quantizers for each description. Commonly, only the highest rate quantizer is used for reconstruction. In this paper we investigate the benefit of using the lower rate quantizers to enhance the reconstruction quality at decoder side. The comparison is done on artificial source data and on image data. |
| Druh dokumentu: | article in journal/newspaper |
| Popis souboru: | application/pdf |
| Jazyk: | English |
| Relation: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/852/684; https://ojs.cvut.cz/ojs/index.php/ap/article/view/852 |
| DOI: | 10.14311/852 |
| Dostupnost: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/852 https://doi.org/10.14311/852 |
| Rights: | Copyright (c) 2015 Acta Polytechnica |
| Přístupové číslo: | edsbas.193DF521 |
| Databáze: | BASE |
Nájsť tento článok vo Web of Science | Abstrakt: | Multiple Description Codes (MDC) can be used to trade redundancy against packet loss resistance for transmitting data over lossy diversity networks. In this work we focus on MD transform coding based on domain partitioning. Compared to Vaishampayan’s quantizer based MDC, domain based MD coding is a simple approach for generating different descriptions, by using different quantizers for each description. Commonly, only the highest rate quantizer is used for reconstruction. In this paper we investigate the benefit of using the lower rate quantizers to enhance the reconstruction quality at decoder side. The comparison is done on artificial source data and on image data. |
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| DOI: | 10.14311/852 |