The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
DCT 코딩을 사용하면 블록 아티팩트 및 모기 잡음 저하가 디코딩된 그림에 나타납니다. 부작용을 일으키지 않고 성능 저하를 줄이려면 사후 필터링을 제어하는 것이 중요합니다. 필터가 인코더 내부에 있거나 인코더 가까이에 있는 경우 디코딩 정보가 유용합니다. 그러나 디스플레이와 같이 독립적인 사후 필터링으로 제어하기는 어렵습니다. 이 경우 제어에는 디코딩된 그림에서만 아티팩트를 추정해야 합니다. 본 연구에서는 모기 소음 블록 및 수준을 결정하는 추정 방법을 설명합니다. 이 방법에서는 모기 블록과 인접한 플랫 블록 사이의 공간 활동 비율을 취합니다. 우리는 서로 다른 양자화 스케일로 코딩된 재구성된 그림을 사용하여 제안된 방법을 테스트합니다. 우리는 다양한 양자화를 통해 결과가 대부분 합리적이라는 것을 알고 있습니다.
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부
Kenji SUGIYAMA, Naoya SAGARA, Yohei KASHIMURA, "Estimation of Mosquito Noise Level from Decoded Picture" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 12, pp. 3291-3296, December 2009, doi: 10.1587/transfun.E92.A.3291.
Abstract: With DCT coding, block artifact and mosquito noise degradations appear in decoded pictures. The control of post filtering is important to reduce degradations without causing side effects. Decoding information is useful, if the filter is inside or close to the encoder; however, it is difficult to control with independent post filtering, such as in a display. In this case, control requires the estimation of the artifact from only the decoded picture. In this work, we describe an estimation method that determines the mosquito noise block and level. In this method, the ratio of spatial activity is taken between the mosquito block and the neighboring flat block. We test the proposed method using the reconstructed pictures which are coded with different quantization scales. We recognize that the results are mostly reasonable with the different quantizations.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.3291/_p
부
@ARTICLE{e92-a_12_3291,
author={Kenji SUGIYAMA, Naoya SAGARA, Yohei KASHIMURA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Estimation of Mosquito Noise Level from Decoded Picture},
year={2009},
volume={E92-A},
number={12},
pages={3291-3296},
abstract={With DCT coding, block artifact and mosquito noise degradations appear in decoded pictures. The control of post filtering is important to reduce degradations without causing side effects. Decoding information is useful, if the filter is inside or close to the encoder; however, it is difficult to control with independent post filtering, such as in a display. In this case, control requires the estimation of the artifact from only the decoded picture. In this work, we describe an estimation method that determines the mosquito noise block and level. In this method, the ratio of spatial activity is taken between the mosquito block and the neighboring flat block. We test the proposed method using the reconstructed pictures which are coded with different quantization scales. We recognize that the results are mostly reasonable with the different quantizations.},
keywords={},
doi={10.1587/transfun.E92.A.3291},
ISSN={1745-1337},
month={December},}
부
TY - JOUR
TI - Estimation of Mosquito Noise Level from Decoded Picture
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 3291
EP - 3296
AU - Kenji SUGIYAMA
AU - Naoya SAGARA
AU - Yohei KASHIMURA
PY - 2009
DO - 10.1587/transfun.E92.A.3291
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2009
AB - With DCT coding, block artifact and mosquito noise degradations appear in decoded pictures. The control of post filtering is important to reduce degradations without causing side effects. Decoding information is useful, if the filter is inside or close to the encoder; however, it is difficult to control with independent post filtering, such as in a display. In this case, control requires the estimation of the artifact from only the decoded picture. In this work, we describe an estimation method that determines the mosquito noise block and level. In this method, the ratio of spatial activity is taken between the mosquito block and the neighboring flat block. We test the proposed method using the reconstructed pictures which are coded with different quantization scales. We recognize that the results are mostly reasonable with the different quantizations.
ER -