Papers › SQ-GAN: Semantic Image Communications Using Masked Vector Quantization

SQ-GAN: Semantic Image Communications Using Masked Vector Quantization

13 Feb 2025arXiv:2502.09520archive 2025-07-28

Francesco Pezone, Sergio Barbarossa, Giuseppe Caire

This work introduces Semantically Masked VQ-GAN (SQ-GAN), a novel approach integrating generative models to optimize image compression for semantic/task-oriented communications. SQ-GAN employs off-the-shelf semantic semantic segmentation and a new specifically developed semantic-conditioned adaptive mask module (SAMM) to selectively encode semantically significant features of the images. SQ-GAN outperforms state-of-the-art image compression schemes such as JPEG2000 and BPG across multiple metrics, including perceptual quality and semantic segmentation accuracy on the post-decoding reconstructed image, at extreme low compression rates expressed in bits per pixel.

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Image CompressionQuantizationSegmentationSemantic Segmentation

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