Skip to yearly menu bar Skip to main content


Poster

UCIP: A Universal Framework for Compressed Image Super-Resolution using Dynamic Prompt

Xin Li · Bingchen Li · Yeying Jin · Cuiling Lan · Hanxin Zhu · Yulin Ren · Zhibo Chen

Strong blind review: This paper was not made available on public preprint services during the review process Strong Double Blind
[ ]
Wed 2 Oct 7:30 a.m. PDT — 9:30 a.m. PDT

Abstract:

Compressed Image Super-resolution (CSR) aims to simultaneously super-resolve the compressed images and tackle the challenging hybrid distortions caused by compression. However, existing works on CSR usually focus on single compression codec, i.e., JEPG, ignoring the diverse traditional or learning-based codecs in the practical application, e.g., HEVC, VVC, HIFIC, etc. In this work, we propose the first universal CSR framework, dubbed UCIP, with dynamic prompt learning, intending to jointly support the CSR distortions of any compression codecs/modes. Particularly, an efficient dynamic prompt strategy is proposed to mine the content/spatial-aware task-adaptive contextual information for the universal CSR task, using only a small amount of prompts with spatial size 1x1. To simplify contextual information mining, we introduce the novel MLP-like framework backbone for our UCIP by adapting the Active Token Mixer (ATM) to CSR tasks for the first time, where the global information modeling is only taken in horizontal and vertical directions with offset prediction. We also build an all-in-one benchmark dataset for the CSR task by collecting the datasets with the popular 6 diverse traditional and learning-based codecs, including JPEG, HEVC, VVC, HIFIC, etc., resulting in 23 common degradations. Extensive experiments have shown the consistent and excellent performance of our UCIP on universal CSR tasks.

Live content is unavailable. Log in and register to view live content