Search Results for author: Chun-Le Guo

Found 19 papers, 12 papers with code

A Diffusion-Based Framework for Occluded Object Movement

no code implementations2 Apr 2025 Zheng-Peng Duan, Jiawei Zhang, Siyu Liu, Zheng Lin, Chun-Le Guo, Dongqing Zou, Jimmy Ren, Chongyi Li

Seamlessly moving objects within a scene is a common requirement for image editing, but it is still a challenge for existing editing methods.

Object World Knowledge

DiT4SR: Taming Diffusion Transformer for Real-World Image Super-Resolution

no code implementations30 Mar 2025 Zheng-Peng Duan, Jiawei Zhang, Xin Jin, Ziheng Zhang, Zheng Xiong, Dongqing Zou, Jimmy Ren, Chun-Le Guo, Chongyi Li

Large-scale pre-trained diffusion models are becoming increasingly popular in solving the Real-World Image Super-Resolution (Real-ISR) problem because of their rich generative priors.

Image Generation Image Super-Resolution

Iterative Predictor-Critic Code Decoding for Real-World Image Dehazing

no code implementations17 Mar 2025 Jiayi Fu, Siyu Liu, Zikun Liu, Chun-Le Guo, Hyunhee Park, Ruiqi Wu, Guoqing Wang, Chongyi Li

Apart from previous codebook-based methods that rely on one-shot decoding, our method utilizes high-quality codes obtained in the previous iteration to guide the prediction of the Code-Predictor in the subsequent iteration, improving code prediction accuracy and ensuring stable dehazing performance.

Image Dehazing

Towards RAW Object Detection in Diverse Conditions

1 code implementation24 Nov 2024 Zhong-Yu Li, Xin Jin, Boyuan Sun, Chun-Le Guo, Ming-Ming Cheng

We find that sRGB pre-training constrains the potential of RAW object detection due to the domain gap between sRGB and RAW, prompting us to directly pre-train on the RAW domain.

Object object-detection +1

Lighting Every Darkness with 3DGS: Fast Training and Real-Time Rendering for HDR View Synthesis

2 code implementations10 Jun 2024 Xin Jin, Pengyi Jiao, Zheng-Peng Duan, Xingchao Yang, Chun-Le Guo, Bo Ren, Chongyi Li

Volumetric rendering based methods, like NeRF, excel in HDR view synthesis from RAWimages, especially for nighttime scenes.

2k 3DGS +3

PUGAN: Physical Model-Guided Underwater Image Enhancement Using GAN with Dual-Discriminators

1 code implementation15 Jun 2023 Runmin Cong, Wenyu Yang, Wei zhang, Chongyi Li, Chun-Le Guo, Qingming Huang, Sam Kwong

Among existing UIE methods, Generative Adversarial Networks (GANs) based methods perform well in visual aesthetics, while the physical model-based methods have better scene adaptability.

Quantization UIE

SRFormerV2: Taking a Closer Look at Permuted Self-Attention for Image Super-Resolution

1 code implementation ICCV 2023 Yupeng Zhou, Zhen Li, Chun-Le Guo, Li Liu, Ming-Ming Cheng, Qibin Hou

Without any bells and whistles, we show that our SRFormer achieves a 33. 86dB PSNR score on the Urban100 dataset, which is 0. 46dB higher than that of SwinIR but uses fewer parameters and computations.

Image Super-Resolution

Embedding Fourier for Ultra-High-Definition Low-Light Image Enhancement

no code implementations23 Feb 2023 Chongyi Li, Chun-Le Guo, Man Zhou, Zhexin Liang, Shangchen Zhou, Ruicheng Feng, Chen Change Loy

Our approach is motivated by a few unique characteristics in the Fourier domain: 1) most luminance information concentrates on amplitudes while noise is closely related to phases, and 2) a high-resolution image and its low-resolution version share similar amplitude patterns. Through embedding Fourier into our network, the amplitude and phase of a low-light image are separately processed to avoid amplifying noise when enhancing luminance.

4k Low-Light Image Enhancement +1

Designing An Illumination-Aware Network for Deep Image Relighting

1 code implementation21 Jul 2022 Zuo-Liang Zhu, Zhen Li, Rui-Xun Zhang, Chun-Le Guo, Ming-Ming Cheng

Lighting is a determining factor in photography that affects the style, expression of emotion, and even quality of images.

Image Relighting Image-to-Image Translation

Image Harmonization by Matching Regional References

no code implementations10 Apr 2022 Ziyue Zhu, Zhao Zhang, Zheng Lin, Ruiqi Wu, Zhi Chai, Chun-Le Guo

To achieve visual consistency in composite images, recent image harmonization methods typically summarize the appearance pattern of global background and apply it to the global foreground without location discrepancy.

Image Harmonization

Towards An End-to-End Framework for Flow-Guided Video Inpainting

2 code implementations CVPR 2022 Zhen Li, Cheng-Ze Lu, Jianhua Qin, Chun-Le Guo, Ming-Ming Cheng

Optical flow, which captures motion information across frames, is exploited in recent video inpainting methods through propagating pixels along its trajectories.

Hallucination Optical Flow Estimation +2

Image Dehazing Transformer With Transmission-Aware 3D Position Embedding

2 code implementations CVPR 2022 Chun-Le Guo, Qixin Yan, Saeed Anwar, Runmin Cong, Wenqi Ren, Chongyi Li

Though Transformer has occupied various computer vision tasks, directly leveraging Transformer for image dehazing is challenging: 1) it tends to result in ambiguous and coarse details that are undesired for image reconstruction; 2) previous position embedding of Transformer is provided in logic or spatial position order that neglects the variational haze densities, which results in the sub-optimal dehazing performance.

Image Dehazing Image Reconstruction +2

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