To segment 4K or 6K ultra high-resolution images needs extra computation consideration in image segmentation. Common strategies, such as down-sampling, patch cropping, and cascade model, cannot address well the balance issue between accuracy and computation cost. Motivated by the fact that humans distinguish among objects continuously from coarse to precise levels, we propose the Continuous Refinement Model~(CRM) for the ultra high-resolution segmentation refinement task. CRM continuously aligns the feature map with the refinement target and aggregates features to reconstruct these images' details. Besides, our CRM shows its significant generalization ability to fill the resolution gap between low-resolution training images and ultra high-resolution testing ones. We present quantitative performance evaluation and visualization to show that our proposed method is fast and effective on image segmentation refinement. Code will be released atthis https URL.
View on arXiv@article{shen2025_2111.14482,
title={ High Quality Segmentation for Ultra High-resolution Images },
author={ Tiancheng Shen and Yuechen Zhang and Lu Qi and Jason Kuen and Xingyu Xie and Jianlong Wu and Zhe Lin and Jiaya Jia },
journal={arXiv preprint arXiv:2111.14482},
year={ 2025 }
}