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Blind face restoration (BFR) is fundamentally challenged by the extensive range of degradation types and degrees that impact model generalization. Recent advancements in diffusion models have made considerable progress in this field.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Xinmin Qiu , Bonan Li , Zicheng Zhang , Congying Han , Tiande Guo

High Dynamic Range (HDR) images can be recovered from several Low Dynamic Range (LDR) images by existing Deep Neural Networks (DNNs) techniques. Despite the remarkable progress, DNN-based methods still generate ghosting artifacts when LDR…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Qingsen Yan , Tao Hu , Yuan Sun , Hao Tang , Yu Zhu , Wei Dong , Luc Van Gool , Yanning Zhang

Blind face restoration from low-quality (LQ) images is a challenging task that requires not only high-fidelity image reconstruction but also the preservation of facial identity. While diffusion models like Stable Diffusion have shown…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Runyi Li , Bin Chen , Jian Zhang , Radu Timofte

A major challenge for high dynamic range (HDR) image reconstruction from multi-exposed low dynamic range (LDR) images, especially with dynamic scenes, is the extraction and merging of relevant contextual features in order to suppress any…

Image and Video Processing · Electrical Eng. & Systems 2022-11-09 Lingkai Zhu , Fei Zhou , Bozhi Liu , Orcun Göksel

Although diffusion-based models can generate high-quality and high-resolution video sequences from textual or image inputs, they lack explicit integration of geometric cues when controlling scene lighting and visual appearance across…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Yuanze Lin , Yi-Wen Chen , Yi-Hsuan Tsai , Ronald Clark , Ming-Hsuan Yang

We present a learning-based method to infer plausible high dynamic range (HDR), omnidirectional illumination given an unconstrained, low dynamic range (LDR) image from a mobile phone camera with a limited field of view (FOV). For training…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Chloe LeGendre , Wan-Chun Ma , Graham Fyffe , John Flynn , Laurent Charbonnel , Jay Busch , Paul Debevec

Removing blur caused by moving objects is challenging, as the moving objects are usually significantly blurry while the static background remains clear. Existing methods that rely on local blur detection often suffer from inaccuracies and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Zhongbao Yang , Jiangxin Dong , Jinhui Tang , Jinshan Pan

The correction of exposure-related issues is a pivotal component in enhancing the quality of images, offering substantial implications for various computer vision tasks. Historically, most methodologies have predominantly utilized spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Xiaoke Shang , Gehui Li , Zhiying Jiang , Shaomin Zhang , Nai Ding , Jinyuan Liu

Rectified Flow text-to-image models surpass diffusion models in image quality and text alignment, but adapting ReFlow for real-image editing remains challenging. We propose a new real-image editing method for ReFlow by analyzing the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Jimyeong Kim , Jungwon Park , Yeji Song , Nojun Kwak , Wonjong Rhee

Diffusion priors have been used for blind face restoration (BFR) by fine-tuning diffusion models (DMs) on restoration datasets to recover low-quality images. However, the naive application of DMs presents several key limitations. (i) The…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Senmao Li , Kai Wang , Joost van de Weijer , Fahad Shahbaz Khan , Chun-Le Guo , Shiqi Yang , Yaxing Wang , Jian Yang , Ming-Ming Cheng

Photorealistic color retouching plays a vital role in visual content creation, yet manual retouching remains inaccessible to non-experts due to its reliance on specialized expertise. Reference-based methods offer a promising alternative by…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Melany Yang , Yuhang Yu , Diwang Weng , Jinwei Chen , Wei Dong

Diffusion models have recently achieved remarkable performance in image super-resolution (SR), but their high computational cost limits practical deployment in remote sensing applications. To address this issue, we propose SlimDiffSR, a…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Ce Wang , Zhenyu Hu , Wanjie Sun

We introduce Lavender, a simple supervised fine-tuning (SFT) method that boosts the performance of advanced vision-language models (VLMs) by leveraging state-of-the-art image generation models such as Stable Diffusion. Specifically,…

Machine Learning · Computer Science 2025-05-27 Chen Jin , Ryutaro Tanno , Amrutha Saseendran , Tom Diethe , Philip Teare

Recent advances in one-step text-to-image generation have enabled real-time synthesis with remarkable efficiency and quality. Previous reinforcement learning methods for one-step generators combine image-space reward optimization with…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Junyi Wu , Weijian Luo , Haoyang Zheng , Ruizhe Zhang , Guang Lin

Diffusion Transformers (DiTs) achieve state-of-the-art image generation quality but incur substantial memory and computational costs at inference. While aggressive Post-Training Quantization (PTQ) to 4-bit precision offers significant…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Sayeh Sharify , Mahsa Salmani , Hesham Mostafa

The potential for higher-resolution image generation using pretrained diffusion models is immense, yet these models often struggle with issues of object repetition and structural artifacts especially when scaling to 4K resolution and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Xinyu Liu , Yingqing He , Lanqing Guo , Xiang Li , Bu Jin , Peng Li , Yan Li , Chi-Min Chan , Qifeng Chen , Wei Xue , Wenhan Luo , Qifeng Liu , Yike Guo

The display devices like HDR10 televisions are increasingly prevalent in our daily life for visualizing high dynamic range (HDR) images. But the majority of media images on the internet remain in 8-bit standard dynamic range (SDR) format.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Liqi Xue , Tianyi Xu , Yongbao Song , Yan Liu , Lei Zhang , Xiantong Zhen , Jun Xu

In this work, we address a challenge in video inpainting: reconstructing occluded regions in dynamic, real-world scenarios. Motivated by the need for continuous human motion monitoring in healthcare settings, where facial features are…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Zheyan Zhang , Diego Klabjan , Renee CB Manworren

Ultrasound image reconstruction can be approximately cast as a linear inverse problem that has traditionally been solved with penalized optimization using the $l_1$ or $l_2$ norm, or wavelet-based terms. However, such regularization…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Yuxin Zhang , Clément Huneau , Jérôme Idier , Diana Mateus

We propose a novel multi-stage depth super-resolution network, which progressively reconstructs high-resolution depth maps from explicit and implicit high-frequency features. The former are extracted by an efficient transformer processing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Xin Qiao , Chenyang Ge , Youmin Zhang , Yanhui Zhou , Fabio Tosi , Matteo Poggi , Stefano Mattoccia