Learned Image Compression With Separate Hyperprior Decoders
Learned image compression techniques have achieved considerable development in recent years. In this paper, we find that the performance bottleneck lies in the use of a single hyperprior decoder, in which case the ternary Gaussian model collapses to a binary one. To solve this, we propose to use thr...
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2021
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oai:doaj.org-article:3d5edee77bea48bc9984699c72bba75b2021-11-23T00:02:18ZLearned Image Compression With Separate Hyperprior Decoders2644-122510.1109/OJCAS.2021.3125354https://doaj.org/article/3d5edee77bea48bc9984699c72bba75b2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9623333/https://doaj.org/toc/2644-1225Learned image compression techniques have achieved considerable development in recent years. In this paper, we find that the performance bottleneck lies in the use of a single hyperprior decoder, in which case the ternary Gaussian model collapses to a binary one. To solve this, we propose to use three hyperprior decoders to separate the decoding process of the mixed parameters in discrete Gaussian mixture likelihoods, achieving more accurate parameters estimation. Experimental results demonstrate the proposed method optimized by MS-SSIM achieves on average 3.36% BD-rate reduction compared with state-of-the-art approach. The contribution of the proposed method to the coding time and FLOPs is negligible.Zhao ZanChao LiuHeming SunXiaoyang ZengYibo FanIEEEarticleLearned image compressionvariational autoencoderconvolutional neural networksGaussian mixture modelElectric apparatus and materials. Electric circuits. Electric networksTK452-454.4ENIEEE Open Journal of Circuits and Systems, Vol 2, Pp 627-632 (2021) |
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Learned image compression variational autoencoder convolutional neural networks Gaussian mixture model Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4 |
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Learned image compression variational autoencoder convolutional neural networks Gaussian mixture model Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4 Zhao Zan Chao Liu Heming Sun Xiaoyang Zeng Yibo Fan Learned Image Compression With Separate Hyperprior Decoders |
description |
Learned image compression techniques have achieved considerable development in recent years. In this paper, we find that the performance bottleneck lies in the use of a single hyperprior decoder, in which case the ternary Gaussian model collapses to a binary one. To solve this, we propose to use three hyperprior decoders to separate the decoding process of the mixed parameters in discrete Gaussian mixture likelihoods, achieving more accurate parameters estimation. Experimental results demonstrate the proposed method optimized by MS-SSIM achieves on average 3.36% BD-rate reduction compared with state-of-the-art approach. The contribution of the proposed method to the coding time and FLOPs is negligible. |
format |
article |
author |
Zhao Zan Chao Liu Heming Sun Xiaoyang Zeng Yibo Fan |
author_facet |
Zhao Zan Chao Liu Heming Sun Xiaoyang Zeng Yibo Fan |
author_sort |
Zhao Zan |
title |
Learned Image Compression With Separate Hyperprior Decoders |
title_short |
Learned Image Compression With Separate Hyperprior Decoders |
title_full |
Learned Image Compression With Separate Hyperprior Decoders |
title_fullStr |
Learned Image Compression With Separate Hyperprior Decoders |
title_full_unstemmed |
Learned Image Compression With Separate Hyperprior Decoders |
title_sort |
learned image compression with separate hyperprior decoders |
publisher |
IEEE |
publishDate |
2021 |
url |
https://doaj.org/article/3d5edee77bea48bc9984699c72bba75b |
work_keys_str_mv |
AT zhaozan learnedimagecompressionwithseparatehyperpriordecoders AT chaoliu learnedimagecompressionwithseparatehyperpriordecoders AT hemingsun learnedimagecompressionwithseparatehyperpriordecoders AT xiaoyangzeng learnedimagecompressionwithseparatehyperpriordecoders AT yibofan learnedimagecompressionwithseparatehyperpriordecoders |
_version_ |
1718417370076151808 |