Detail publikačního výsledku

Sparse and Cosparse Audio Dequantization Using Convex Optimization

ZÁVIŠKA, P.; RAJMIC, P.

Originální název

Sparse and Cosparse Audio Dequantization Using Convex Optimization

Anglický název

Sparse and Cosparse Audio Dequantization Using Convex Optimization

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper shows the potential of sparsity-based methods in restoring quantized signals. Following up on the study of Brauer et al. (IEEE ICASSP 2016), we significantly extend the range of the evaluation scenarios: we introduce the analysis (cosparse) model, we use more effective algorithms, we experiment with another time-frequency transform. The paper shows that the analysis-based model performs comparably to the synthesis-model, but the Gabor transform produces better results than the originally used cosine transform. Last but not least, we provide codes and data in a reproducible way.

Anglický abstrakt

The paper shows the potential of sparsity-based methods in restoring quantized signals. Following up on the study of Brauer et al. (IEEE ICASSP 2016), we significantly extend the range of the evaluation scenarios: we introduce the analysis (cosparse) model, we use more effective algorithms, we experiment with another time-frequency transform. The paper shows that the analysis-based model performs comparably to the synthesis-model, but the Gabor transform produces better results than the originally used cosine transform. Last but not least, we provide codes and data in a reproducible way.

Klíčová slova

Quantizaiton; Dequantization; Sparsity; Cosparsity; Proximal splitting

Klíčová slova v angličtině

Quantizaiton; Dequantization; Sparsity; Cosparsity; Proximal splitting

Autoři

ZÁVIŠKA, P.; RAJMIC, P.

Rok RIV

2021

Vydáno

11.08.2020

Nakladatel

IEEE

Místo

Milan, Italy

ISBN

978-1-7281-6376-5

Kniha

Proceedings of the 2020 43rd International Conference on Telecommunications and Signal Processing (TSP)

Strany od

216

Strany do

220

Strany počet

5

URL

https://ieeexplore.ieee.org/document/9163566

BibTex

@inproceedings{BUT164024,
  author="Pavel {Záviška} and Pavel {Rajmic}",
  title="Sparse and Cosparse Audio Dequantization Using Convex Optimization",
  booktitle="
Proceedings of the 2020 43rd International Conference on Telecommunications and Signal Processing (TSP)",
  year="2020",
  pages="216--220",
  publisher="IEEE",
  address="Milan, Italy",
  doi="10.1109/TSP49548.2020.9163566",
  isbn="978-1-7281-6376-5",
  url="https://ieeexplore.ieee.org/document/9163566"
}