1 code implementation • CVPR 2025 • Du Chen, Tianhe Wu, Kede Ma, Lei Zhang
To relax the assumption of perfect reference image quality, we build a large-scale IQA database, namely DiffIQA, containing approximately 180, 000 images generated by a diffusion-based image enhancer with adjustable hyper-parameters.
Full reference image quality assessment
Full-Reference Image Quality Assessment
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1 code implementation • 12 Jan 2025 • Du Chen, Liyi Chen, Zhengqiang Zhang, Lei Zhang
Implicit Neural Representation (INR) has been successfully employed for Arbitrary-scale Super-Resolution (ASR).
1 code implementation • 11 Aug 2024 • Du Chen, Zhengqiang Zhang, Jie Liang, Lei Zhang
Based on the fact that natural images exhibit high self-similarities, i. e., a local patch can have many similar patches to it in the whole image, in this work we propose a simple yet effective self-similarity loss (SSL) to improve the performance of generative Real-ISR models, enhancing the hallucination of structural and textural details while reducing the unpleasant visual artifacts.
1 code implementation • 20 Jan 2024 • Du Chen, Yi Huang, Xiaopu Li, Yongqiang Li, Yongqiang Liu, Haihui Pan, Leichao Xu, Dacheng Zhang, Zhipeng Zhang, Kun Han
In this study, we introduce Orion-14B, a collection of multilingual large language models with 14 billion parameters.
1 code implementation • CVPR 2023 • Du Chen, Jie Liang, Xindong Zhang, Ming Liu, Hui Zeng, Lei Zhang
A human guided GT image dataset with both positive and negative samples is then constructed, and a loss function is proposed to train the Real-ISR models.
no code implementations • 9 Dec 2019 • Du Chen, Zewei He, Yanpeng Cao, Jiangxin Yang, Yanlong Cao, Michael Ying Yang, Siliang Tang, Yueting Zhuang
Firstly, we proposed a novel Orientation-Aware feature extraction and fusion Module (OAM), which contains a mixture of 1D and 2D convolutional kernels (i. e., 5 x 1, 1 x 5, and 3 x 3) for extracting orientation-aware features.