Q-Refine: A Perceptual Quality Refiner for AI-Generated Image
Authors: name: Chunyi Li; name: Haoning Wu; name: Zicheng Zhang; name: Hongkun Hao; name: Kaiwei Zhang; name: Lei Bai; name: Xiaohong Liu; name: Xiongkuo Min; name: Weisi Lin; name: Guangtao Zhai
Published: 2024-01-02 09:11:23

Abstract: With the rapid evolution of the Text-to-Image (T2I) model in recent years,
their unsatisfactory generation result has become a challenge. However,
uniformly refining AI-Generated Images (AIGIs) of different qualities not only
limited optimization capabilities for low-quality AIGIs but also brought
negative optimization to high-quality AIGIs. To address this issue, a
quality-award refiner named Q-Refine is proposed. Based on the preference of
the Human Visual System (HVS), Q-Refine uses the Image Quality Assessment (IQA)
metric to guide the refining process for the first time, and modify images of
different qualities through three adaptive pipelines. Experimental shows that
for mainstream T2I models, Q-Refine can perform effective optimization to AIGIs
of different qualities. It can be a general refiner to optimize AIGIs from both
fidelity and aesthetic quality levels, thus expanding the application of the
T2I generation models.