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Shadow removal is still a challenging task due to its inherent background-dependent and spatial-variant properties, leading to unknown and diverse shadow patterns. Even powerful state-of-the-art deep neural networks could hardly recover…

计算机视觉与模式识别 · 计算机科学 2021-04-13 Lan Fu , Changqing Zhou , Qing Guo , Felix Juefei-Xu , Hongkai Yu , Wei Feng , Yang Liu , Song Wang

In natural image matting, the goal is to estimate the opacity of the foreground object in the image. This opacity controls the way the foreground and background is blended in transparent regions. In recent years, advances in deep learning…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Sebastian Lutz , Aljosa Smolic

We propose DeRenderNet, a deep neural network to decompose the albedo and latent lighting, and render shape-(in)dependent shadings, given a single image of an outdoor urban scene, trained in a self-supervised manner. To achieve this goal,…

计算机视觉与模式识别 · 计算机科学 2021-04-29 Yongjie Zhu , Jiajun Tang , Si Li , Boxin Shi

In this paper, we introduce NBNet, a novel framework for image denoising. Unlike previous works, we propose to tackle this challenging problem from a new perspective: noise reduction by image-adaptive projection. Specifically, we propose to…

计算机视觉与模式识别 · 计算机科学 2021-05-13 Shen Cheng , Yuzhi Wang , Haibin Huang , Donghao Liu , Haoqiang Fan , Shuaicheng Liu

Nighttime image dehazing remains a challenging low-level vision problem due to the joint presence of haze, glow, non-uniform illumination, color distortion, and sensor noise, which often invalidate assumptions commonly used in daytime…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Mohammad Heydari , Wei Dong , Shahram Shirani , Jun Chen , Han Zhou

Existing research based on deep learning has extensively explored the problem of daytime image dehazing. However, few studies have considered the characteristics of nighttime hazy scenes. There are two distinctions between nighttime and…

计算机视觉与模式识别 · 计算机科学 2024-03-28 Xiaofeng Cong , Jie Gui , Jing Zhang , Junming Hou , Hao Shen

Single image dehazing is a challenging task, for which the domain shift between synthetic training data and real-world testing images usually leads to degradation of existing methods. To address this issue, we propose a novel image dehazing…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Ye Liu , Lei Zhu , Shunda Pei , Huazhu Fu , Jing Qin , Qing Zhang , Liang Wan , Wei Feng

Relighting of human images has various applications in image synthesis. For relighting, we must infer albedo, shape, and illumination from a human portrait. Previous techniques rely on human faces for this inference, based on spherical…

图形学 · 计算机科学 2019-08-12 Yoshihiro Kanamori , Yuki Endo

Image restoration (IR) aims to recover clean images from degraded observations. Despite remarkable progress, most existing methods focus on a single degradation type, whereas real-world images often suffer from multiple coexisting…

计算机视觉与模式识别 · 计算机科学 2025-11-10 Hu Gao , Xiaoning Lei , Ying Zhang , Xichen Xu , Guannan Jiang , Lizhuang Ma

Image matting and image harmonization are two important tasks in image composition. Image matting, aiming to achieve foreground boundary details, and image harmonization, aiming to make the background compatible with the foreground, are…

计算机视觉与模式识别 · 计算机科学 2021-08-16 Xuqian Ren , Yifan Liu , Chunlei Song

Image matting is a fundamental computer vision problem and has many applications. Previous algorithms have poor performance when an image has similar foreground and background colors or complicated textures. The main reasons are prior…

计算机视觉与模式识别 · 计算机科学 2017-04-12 Ning Xu , Brian Price , Scott Cohen , Thomas Huang

Low-light image enhancement tasks demand an appropriate balance among brightness, color, and illumination. While existing methods often focus on one aspect of the image without considering how to pay attention to this balance, which will…

计算机视觉与模式识别 · 计算机科学 2023-10-20 Nana Yu , Hong Shi , Yahong Han

Current methods for restoring underexposed images typically rely on supervised learning with paired underexposed and well-illuminated images. However, collecting such datasets is often impractical in real-world scenarios. Moreover, these…

计算机视觉与模式识别 · 计算机科学 2025-07-04 Hailong Yan , Junjian Huang , Tingwen Huang

We present a deep neural network for removing undesirable shading features from an unconstrained portrait image, recovering the underlying texture. Our training scheme incorporates three regularization strategies: masked loss, to emphasize…

计算机视觉与模式识别 · 计算机科学 2022-07-25 Joshua Weir , Junhong Zhao , Andrew Chalmers , Taehyun Rhee

In MRI, images of the same contrast (e.g., T$_1$) from the same subject can exhibit noticeable differences when acquired using different hardware, sequences, or scan parameters. These differences in images create a domain gap that needs to…

图像与视频处理 · 电气工程与系统科学 2023-08-17 Hwihun Jeong , Heejoon Byun , Dong Un Kang , Jongho Lee

An end-to-end trainable ConvNet architecture, that learns to harness the power of shape representation for matching disparate image pairs, is proposed. Disparate image pairs are deemed those that exhibit strong affine variations in scale,…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Shefali Srivastava , Abhimanyu Chopra , Arun CS Kumar , Suchendra M. Bhandarkar , Deepak Sharma

The image relighting task of transferring illumination conditions between two images offers an interesting and difficult challenge with potential applications in photography, cinematography and computer graphics. In this report we present…

计算机视觉与模式识别 · 计算机科学 2020-06-04 Alexandre Pierre Dherse , Martin Nicolas Everaert , Jakub Jan Gwizdała

We focus on addressing the challenges in responsible beauty product recommendation, particularly when it involves comparing the product's color with a person's skin tone, such as for foundation and concealer products. To make accurate…

计算机视觉与模式识别 · 计算机科学 2023-09-11 Parnian Afshar , Jenny Yeon , Andriy Levitskyy , Rahul Suresh , Amin Banitalebi-Dehkordi

We present HICNet, a reference-guided exposure correction framework. A lightweight, content-agnostic encoder distills each image into a compact illumination embedding capturing regional brightness, edge contrast, and higher-order luminance…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Hao Ren , Zetong Bi , Zhaoliang Wan , Hui Cheng

Outdoor scene relighting is a challenging problem that requires good understanding of the scene geometry, illumination and albedo. Current techniques are completely supervised, requiring high quality synthetic renderings to train a…

计算机视觉与模式识别 · 计算机科学 2021-07-08 Ye Yu , Abhimitra Meka , Mohamed Elgharib , Hans-Peter Seidel , Christian Theobalt , William A. P. Smith