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Junqi Shi

4 accepted papers

2026

DiT-IC: Aligned Diffusion Transformer for Efficient Image Compression

CVPR 2026

Diffusion-based image compression has recently shown outstanding perceptual fidelity, yet its practicality is hindered by prohibitive sampling overhead and high memory usage.Most existing diffusion codecs employ UNet architectures, where hierarchical downsampling forces diffusion to operate in shall

Cited by 0SourcecodeScholar
2026

Reinforced Rate Control for Neural Video Compression via Inter-Frame Rate–Distortion Awareness

AAAI 2026technical

Neural video compression (NVC) has demonstrated superior compression efficiency, yet effective rate control remains a significant challenge due to complex temporal dependencies. Existing rate control schemes typically leverage frame content to capture distortion interactions, overlooking inter-frame

Cited by 0SourcePDFScholar
2026

Taming Hierarchical Image Coding Optimization: A Spectral Regularization Perspective

ICLR 2026poster

Hierarchical coding offers distinct advantages for learned image compression by capturing multi-scale representations to support scale-wise modeling and enable flexible quality scalability, making it a promising alternative to single-scale models. However, its practical performance remains limited.…

Cited by 0SourceScholar
2025

On Quantizing Neural Representation for Variable-Rate Video Coding

ICLR 2025spotlight

This work introduces NeuroQuant, a novel post-training quantization (PTQ) approach tailored to non-generalized Implicit Neural Representations for variable-rate Video Coding (INR-VC). Unlike existing methods that require extensive weight retraining for each target bitrate, we hypothesize that variab…