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Photo enhancement plays a crucial role in augmenting the visual aesthetics of a photograph. In recent years, photo enhancement methods have either focused on enhancement performance, producing powerful models that cannot be deployed on edge…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Feng Zhang , Haoyou Deng , Zhiqiang Li , Lida Li , Bin Xu , Qingbo Lu , Zisheng Cao , Minchen Wei , Changxin Gao , Nong Sang , Xiang Bai

Lens flares, caused by complex optical aberrations, severely degrade image quality especially in nighttime photography. Although recent restoration methods have made remarkable progress, most still rely on spatially uniform processing. They…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Zijia Fu , Yuanfei Huang , Lizhi Wang , Hua Huang

In image dehazing task, haze density is a key feature and affects the performance of dehazing methods. However, some of the existing methods lack a comparative image to measure densities, and others create intermediate results but lack the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Zhongze Wang , Haitao Zhao , Lujian Yao , Jingchao Peng , Kaijie Zhao

In the process of performing image super-resolution processing, the processing of complex localized information can have a significant impact on the quality of the image generated. Fractal features can capture the rich details of both micro…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Lianping Yang , Peng Jiao , Jinshan Pan , Hegui Zhu , Su Guo

Most of the face hallucination methods are designed for complete inputs. They will not work well if the inputs are very tiny or contaminated by large occlusion. Inspired by this fact, we propose an obscured face hallucination…

Computer Vision and Pattern Recognition · Computer Science 2018-12-13 Lianping Yang , Bin Shao , Ting Sun , Song Ding , Xiangde Zhang

Residual networks (ResNets) have been utilized for various computer vision and image processing applications. The residual connection improves the training of the network with better gradient flow. A residual block consists of few…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Satya Rajendra Singh , Roshan Reddy Yedla , Shiv Ram Dubey , Rakesh Sanodiya , Wei-Ta Chu

Diffusion models have recently motivated great success in many generation tasks like object removal. Nevertheless, existing image decomposition methods struggle to disentangle semi-transparent or transparent layer occlusions due to mask…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Zitong Wang , Hang Zhao , Qianyu Zhou , Xuequan Lu , Xiangtai Li , Yiren Song

Image restoration aims to recover high-quality images from their corrupted counterparts. Many existing methods primarily focus on the spatial domain, neglecting the understanding of frequency variations and ignoring the impact of implicit…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Hu Gao , Depeng Dang

Deep learning and Convolutional Neural Networks (CNNs) have driven major transformations in diverse research areas. However, their limitations in handling low-frequency information present obstacles in certain tasks like interpreting global…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Fuzhi Wu , Jiasong Wu , Youyong Kong , Chunfeng Yang , Guanyu Yang , Huazhong Shu , Guy Carrault , Lotfi Senhadji

The increasing realism of synthetic images generated by advanced models such as VAEs, GANs, and LDMs poses significant challenges for synthetic image detection. To address this issue, we explore two artifact types introduced during the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Shuqiao Liang , Jian Liu , Renzhang Chen , Quanlong Guan

Object detection in unmanned aerial vehicle (UAV) images remains a highly challenging task, primarily caused by the complexity of background noise and the imbalance of target scales. Traditional methods easily struggle to effectively…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Wenfeng Zhang , Jun Ni , Yue Meng , Xiaodong Pei , Wei Hu , Qibing Qin , Lei Huang

Natural image quality is often degraded by adverse weather conditions, significantly impairing the performance of downstream tasks. Image restoration has emerged as a core solution to this challenge and has been widely discussed in the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Xingyu Jiang , Ning Gao , Hongkun Dou , Xiuhui Zhang , Xiaoqing Zhong , Yue Deng , Hongjue Li

Photographing in the under-illuminated scenes, the presence of complex light sources often leave strong flare artifacts in images, where the intensity, the spectrum, the reflection, and the aberration altogether contribute the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Zheyan Jin , Shiqi Chen , Huajun Feng , Zhihai Xu , Yueting Chen

Reflections often degrade the visual quality of images captured through transparent surfaces, and reflection removal methods suffers from the shortage of paired real-world samples.This paper proposes a hybrid approach that combines…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Zhengyang Lu , Weifan Wang , Tianhao Guo , Feng Wang

With the rapid advancement of deep learning in image generation, facial forgery techniques have achieved unprecedented realism, posing serious threats to cybersecurity and information authenticity. Most existing deepfake detection…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Haotian Wu , Yue Cheng , Shan Bian

Lens flares arise from light reflection and refraction within sensor arrays, whose diverse types include glow, veiling glare, reflective flare and so on. Existing methods are specialized for one specific type only, and overlook the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Yuwen He , Wei Wang , Wanyu Wang , Kui Jiang

The performance of single image super-resolution depends heavily on how to generate and complement high-frequency details to low-resolution images. Recently, diffusion-based DDPM models exhibit great potential in generating high-quality…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Xingjian Wang , Li Chai , Jiming Chen

Traditional fine-grained image classification typically relies on large-scale training samples with annotated ground-truth. However, some sub-categories have few available samples in real-world applications, and current few-shot models…

Computer Vision and Pattern Recognition · Computer Science 2022-10-27 Hegui Zhu , Zhan Gao , Jiayi Wang , Yange Zhou , Chengqing Li

Image restoration is the task of aiming to obtain a high-quality image from a corrupt input image, such as deblurring and deraining. In image restoration, it is typically necessary to maintain a complex balance between spatial details and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Hu Gao , Jing Yang , Ying Zhang , Ning Wang , Jingfan Yang , Depeng Dang

Capturing screens is now routine in our everyday lives. But the photographs of emissive displays are often influenced by the flicker-banding (FB), which is alternating bright%u2013dark stripes that arise from temporal aliasing between a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-20 Libo Zhu , Zihan Zhou , Xiaoyang Liu , Weihang Zhang , Keyu Shi , Yifan Fu , Yulun Zhang