URI | http://purl.tuc.gr/dl/dias/936A88E7-68AE-4043-BC60-C43906BB4A3A | - |
Αναγνωριστικό | https://doi.org/10.1109/ICIP.2008.4712186 | - |
Αναγνωριστικό | https://ieeexplore.ieee.org/document/4712186/ | - |
Γλώσσα | en | - |
Μέγεθος | 4 pages | en |
Τίτλος | Multiple description based image transmission with low density parity check codes | en |
Δημιουργός | Savakis Andreas | en |
Δημιουργός | Zervakis Michail | en |
Δημιουργός | Ζερβακης Μιχαηλ | el |
Δημιουργός | Tsagkatakis, Grigorios | en |
Εκδότης | Institute of Electrical and Electronics Engineers | en |
Περίληψη | The multiple description coding framework is well-suited for the transmission of images in the presence of transmission errors. However, it has been mainly explored for idealized channels, where packets are either received correctly or not at all. In more realistic scenarios, bitstreams are affected by bit-level noise and error correcting codes must be employed. In the proposed scheme, the input image is decomposed into wavelet coefficients that are encoded using lattice vector quantization for the generation of multiple descriptions. Low-density parity-check (LDPC) codes are used for the protection of each stream, while joint decoding exploits the correlation between the multiple descriptions. The proposed joint source-channel decoding scheme can provide robust transmission of images by introducing a controlled amount of redundancy that can be used for error recovery. Results are presented for image transmission over binary symmetric and Gaussian channels. | en |
Τύπος | Πλήρης Δημοσίευση σε Συνέδριο | el |
Τύπος | Conference Full Paper | en |
Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
Ημερομηνία | 2015-10-26 | - |
Ημερομηνία Δημοσίευσης | 2008 | - |
Θεματική Κατηγορία | Image communication | en |
Θεματική Κατηγορία | Parity check codes | en |
Θεματική Κατηγορία | Decoding | en |
Θεματική Κατηγορία | Image coding | en |
Θεματική Κατηγορία | Error correction codes | en |
Θεματική Κατηγορία | Wavelet coefficients | en |
Θεματική Κατηγορία | Lattices | en |
Θεματική Κατηγορία | Vector quantization | en |
Θεματική Κατηγορία | Protection | en |
Θεματική Κατηγορία | Streaming media | en |
Βιβλιογραφική Αναφορά | G. Tsagkatakis, M. Zervakis and A. Savakis, "Multiple description based image transmission with low density parity check codes," in 15th IEEE International Conference on Image Processing, 2008, pp. 2040-2043. doi: 10.1109/ICIP.2008.4712186 | en |