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Entropy-Constrained Implicit Neural Representations for Deep Image Compression
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DOI：10.1109/LSP.2023.3279780.png)
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Abstract
En 中文
Implicit neural representations (INRs) for various data types have gained popularity in the field of deep learning owing to their effectiveness. However, previous studies on INRs have only focused on recovering original representations. This letter investigated an image compression model based on INRs using a model compression technique for entropy-constrained neural networks. Specifically, the proposed model trains a multilayer perceptron (MLP) to overfit a single image and then uses its weights to optimize its compressed representation using additive uniform noise. Accordingly, the proposed model efficiently minimizes the size of the model weight in an end-to-end manner. This training optimization process is fairly desirable for adjusting the rate of distortion for image compression. In contrast to other model compression techniques, the proposed model is implemented without additional training process or memory cost. By introducing entropy loss, this letter demonstrated that the proposed model can be used to preserve high image quality while maintaining smaller model size. The experimental results demonstrated that the proposed model achieved comparable performance to conventional image compression models without incurring high storage costs.
Keywords:
Image coding
Entropy
Computational modeling
Training
Data models
Neural networks
Distortion
Image compression
model compression
implicit neural representation
Journal
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