A uniform-noise diffusion model plus universal quantization enables a single-model progressive image codec that is computationally tractable and competitive with classic and neural baselines.
15 It therefore suffices to show that ωt converges in distribution to N (0, β2 T |tI) in the continuous-time limit
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Progressive Compression with Universally Quantized Diffusion Models
A uniform-noise diffusion model plus universal quantization enables a single-model progressive image codec that is computationally tractable and competitive with classic and neural baselines.