On requirements to accuracy of noise variance estimation in prediction of DCT-based filter efficiency
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On requirements to accuracy of noise variance estimation in prediction of DCT-based filter efficiency. / Abramova, V.; Lukin, V.; Abramov, S.; Rubel, O.; Vozel, B.; Chehdi, K.; Astola, J.; Egiazarian, K.
In: Telecommunications and Radio Engineering, Vol. 75, No. 2, 2016, p. 139-154.Research output: Contribution to journal › Article › Scientific › peer-review
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TY - JOUR
T1 - On requirements to accuracy of noise variance estimation in prediction of DCT-based filter efficiency
AU - Abramova, V.
AU - Lukin, V.
AU - Abramov, S.
AU - Rubel, O.
AU - Vozel, B.
AU - Chehdi, K.
AU - Astola, J.
AU - Egiazarian, K.
N1 - EXT="Lukin, V."
PY - 2016
Y1 - 2016
N2 - Several approaches to prediction of denoising efficiency for the DCT-based filters with application to single and multichannel images corrupted by different types of noise have been proposed recently. For all of them, it has been assumed that the noise characteristics are a priori and accurately known. In this paper, we analyze the influence of errors in estimated noise variance on prediction accuracy. It is shown that this influence depends upon input parameter used in prediction. Based on the analysis, requirements to accuracy of the noise variance estimation are provided.
AB - Several approaches to prediction of denoising efficiency for the DCT-based filters with application to single and multichannel images corrupted by different types of noise have been proposed recently. For all of them, it has been assumed that the noise characteristics are a priori and accurately known. In this paper, we analyze the influence of errors in estimated noise variance on prediction accuracy. It is shown that this influence depends upon input parameter used in prediction. Based on the analysis, requirements to accuracy of the noise variance estimation are provided.
KW - Additive noise
KW - Denoising efficiency prediction
KW - Estimation errors
KW - Image filtering
KW - Requirements to estimation accuracy
U2 - 10.1615/TelecomRadEng.v75.i2.40
DO - 10.1615/TelecomRadEng.v75.i2.40
M3 - Article
VL - 75
SP - 139
EP - 154
JO - Telecommunications and Radio Engineering
JF - Telecommunications and Radio Engineering
SN - 0040-2508
IS - 2
ER -