Visual-Language Model Knowledge Distillation Method for Image Quality Assessment

Fuente: arXiv
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Main Authors: Hou, Yongkang, Song, Jiarun
Format: Preprint
Published: 2025
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author Hou, Yongkang
Song, Jiarun
author_facet Hou, Yongkang
Song, Jiarun
contents Image Quality Assessment (IQA) is a core task in computer vision. Multimodal methods based on vision-language models, such as CLIP, have demonstrated exceptional generalization capabilities in IQA tasks. To address the issues of excessive parameter burden and insufficient ability to identify local distorted features in CLIP for IQA, this study proposes a visual-language model knowledge distillation method aimed at guiding the training of models with architectural advantages using CLIP's IQA knowledge. First, quality-graded prompt templates were designed to guide CLIP to output quality scores. Then, CLIP is fine-tuned to enhance its capabilities in IQA tasks. Finally, a modality-adaptive knowledge distillation strategy is proposed to achieve guidance from the CLIP teacher model to the student model. Our experiments were conducted on multiple IQA datasets, and the results show that the proposed method significantly reduces model complexity while outperforming existing IQA methods, demonstrating strong potential for practical deployment.
format Preprint
id arxiv_https___arxiv_org_abs_2507_15680
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Visual-Language Model Knowledge Distillation Method for Image Quality Assessment
Hou, Yongkang
Song, Jiarun
Computer Vision and Pattern Recognition
Image Quality Assessment (IQA) is a core task in computer vision. Multimodal methods based on vision-language models, such as CLIP, have demonstrated exceptional generalization capabilities in IQA tasks. To address the issues of excessive parameter burden and insufficient ability to identify local distorted features in CLIP for IQA, this study proposes a visual-language model knowledge distillation method aimed at guiding the training of models with architectural advantages using CLIP's IQA knowledge. First, quality-graded prompt templates were designed to guide CLIP to output quality scores. Then, CLIP is fine-tuned to enhance its capabilities in IQA tasks. Finally, a modality-adaptive knowledge distillation strategy is proposed to achieve guidance from the CLIP teacher model to the student model. Our experiments were conducted on multiple IQA datasets, and the results show that the proposed method significantly reduces model complexity while outperforming existing IQA methods, demonstrating strong potential for practical deployment.
title Visual-Language Model Knowledge Distillation Method for Image Quality Assessment
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2507.15680