Device Interoperability for Learned Image Compression with Weights and Activations Quantization

Learning-based image compression has improved to a level where it can outperform traditional image codecs such as HEVC and VVC in terms of coding performance. In addition to good compression performance, device interoperability is essential for a compression codec to be deployed, i.e., encoding and...

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Vydané v:Picture Coding Symposium s. 151 - 155
Hlavní autori: Koyuncu, Esin, Solovyev, Timofey, Alshina, Elena, Kaup, Andre
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 07.12.2022
Predmet:
Codecs
Decoding
device interoperability
Entropy
Image coding
Interoperability
learning-based image compression
neural network quantization
Performance evaluation
Quantization (signal)
ISSN:2472-7822
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Popis
Shrnutí:Learning-based image compression has improved to a level where it can outperform traditional image codecs such as HEVC and VVC in terms of coding performance. In addition to good compression performance, device interoperability is essential for a compression codec to be deployed, i.e., encoding and decoding on different CPUs or GPUs should be error-free and with negligible performance reduction. In this paper, we present a method to solve the device interoperability problem of a state-of-the-art image compression network. We implement quantization to entropy networks which output entropy parameters. We suggest a simple method which can ensure cross-platform encoding and decoding, and can be implemented quickly with minor performance deviation, of 0.3% BD-rate, from floating point model results.
ISSN:2472-7822
DOI:10.1109/PCS56426.2022.10018040