TL;DR
The paper introduces an efficient Interpolation Variable-Rate (IVR) image compression network that achieves fine-grained rate control and outperforms traditional standards like VTM 9.0 in PSNR and MS-SSIM, without sacrificing performance.
Contribution
It proposes a novel IVR network with InterpCA module enabling precise variable-rate control and superior performance over existing learned compression methods.
Findings
Outperforms VTM 9.0 in PSNR and MS-SSIM.
Achieves fine PSNR and BPP intervals with 9000 rates.
First variable-rate learned method surpassing traditional standards.
Abstract
Compression standards have been used to reduce the cost of image storage and transmission for decades. In recent years, learned image compression methods have been proposed and achieved compelling performance to the traditional standards. However, in these methods, a set of different networks are used for various compression rates, resulting in a high cost in model storage and training. Although some variable-rate approaches have been proposed to reduce the cost by using a single network, most of them brought some performance degradation when applying fine rate control. To enable variable-rate control without sacrificing the performance, we propose an efficient Interpolation Variable-Rate (IVR) network, by introducing a handy Interpolation Channel Attention (InterpCA) module in the compression network. With the use of two hyperparameters for rate control and linear interpolation, the…
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