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Removing objects from images is a challenging problem that is important for many applications, including mixed reality. For believable results, the shadows that the object casts should also be removed. Current inpainting-based methods only…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Edward Zhang , Ricardo Martin-Brualla , Janne Kontkanen , Brian Curless

As a fundamental task in computer vision, semantic segmentation is widely applied in fields such as autonomous driving, remote sensing image analysis, and medical image processing. In recent years, Transformer-based segmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Tai An , Weiqiang Huang , Da Xu , Qingyuan He , Jiacheng Hu , Yujia Lou

While deep learning-based image reconstruction methods have shown significant success in removing objects from pictures, they have yet to achieve acceptable results for attributing consistency to gender, ethnicity, expression, and other…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Gourango Modak , Shuvra Smaran Das , Md. Ajharul Islam Miraj , Md. Kishor Morol

We propose a novel deep learning method for shadow removal. Inspired by physical models of shadow formation, we use a linear illumination transformation to model the shadow effects in the image that allows the shadow image to be expressed…

Computer Vision and Pattern Recognition · Computer Science 2019-08-26 Hieu Le , Dimitris Samaras

Shadow, as a natural consequence of light interacting with objects, plays a crucial role in shaping the aesthetics of an image, which however also impairs the content visibility and overall visual quality. Recent shadow removal approaches…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Hengxing Liu , Mingjia Li , Xiaojie Guo

Differentiable rendering has received increasing interest for image-based inverse problems. It can benefit traditional optimization-based solutions to inverse problems, but also allows for self-supervision of learning-based approaches for…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Linjie Lyu , Marc Habermann , Lingjie Liu , Mallikarjun B R , Ayush Tewari , Christian Theobalt

Shadows are a common factor degrading image quality. Single-image shadow removal (SR), particularly under challenging indirect illumination, is hampered by non-uniform content degradation and inherent ambiguity. Consequently, traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Yu-Fan Lin , Chia-Ming Lee , Chih-Chung Hsu

We present a neural extension of basic shadow mapping for fast, high quality hard and soft shadows. We compare favorably to fast pre-filtering shadow mapping, all while producing visual results on par with ray traced hard and soft shadows.…

Graphics · Computer Science 2023-01-16 Sayantan Datta , Derek Nowrouzezahrai , Christoph Schied , Zhao Dong

Face-swapping models have been drawing attention for their compelling generation quality, but their complex architectures and loss functions often require careful tuning for successful training. We propose a new face-swapping model called…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 Jiseob Kim , Jihoon Lee , Byoung-Tak Zhang

While nowadays deep neural networks achieve impressive performances on semantic segmentation tasks, they are usually trained by optimizing pixel-wise losses such as cross-entropy. As a result, the predictions outputted by such networks…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Yifu Chen , Arnaud Dapogny , Matthieu Cord

Shadow detection is a fundamental and challenging task in many computer vision applications. Intuitively, most shadows come from the occlusion of light by the object itself, resulting in the object and its shadow being contiguous (referred…

Computer Vision and Pattern Recognition · Computer Science 2024-08-08 Yonghui Wang , Shaokai Liu , Li Li , Wengang Zhou , Houqiang Li

Local structures of shadow boundaries as well as complex interactions of image regions remain largely unexploited by previous shadow detection approaches. In this paper, we present a novel learning-based framework for shadow region recovery…

Computer Vision and Pattern Recognition · Computer Science 2015-05-11 Li Shen , Teck Wee Chua , Karianto Leman

Current shadow detection methods perform poorly when detecting shadow regions that are small, unclear or have blurry edges. In this work, we attempt to address this problem on two fronts. First, we propose a Fine Context-aware Shadow…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Jeya Maria Jose Valanarasu , Vishal M. Patel

Shadows encode rich information about scene geometry and illumination, yet existing methods either predict a unified shadow mask or overlook attached shadows entirely. We address this gap by proposing a framework for jointly detecting cast…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Shilin Hu , Jingyi Xu , Sagnik Das , Dimitris Samaras , Hieu Le

Shadows significantly hinder computer vision tasks in outdoor environments, particularly in field robotics, where varying lighting conditions complicate object detection and localisation. We present FieldNet, a novel deep learning framework…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Alzayat Saleh , Alex Olsen , Jake Wood , Bronson Philippa , Mostafa Rahimi Azghadi

Shadows often create unwanted artifacts in photographs, and removing them can be very challenging. Previous shadow removal methods often produce de-shadowed regions that are visually inconsistent with the rest of the image. In this work we…

Computer Vision and Pattern Recognition · Computer Science 2016-03-22 Liqian Ma , Jue Wang , Eli Shechtman , Kalyan Sunkavalli , Shimin Hu

Existing unsupervised methods have addressed the challenges of inconsistent paired data and tedious acquisition of ground-truth labels in shadow removal tasks. However, GAN-based training often faces issues such as mode collapse and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-02 Ziqi Zeng , Chen Zhao , Weiling Cai , Chenyu Dong

We present a self-trainable method, Mask2Hand, which learns to solve the challenging task of predicting 3D hand pose and shape from a 2D binary mask of hand silhouette/shadow without additional manually-annotated data. Given the intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Li-Jen Chang , Yu-Cheng Liao , Chia-Hui Lin , Hwann-Tzong Chen

As the deep learning revolution marches on, self-supervised learning has garnered increasing attention in recent years thanks to its remarkable representation learning ability and the low dependence on labeled data. Among these varied…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Siyuan Li , Luyuan Zhang , Zedong Wang , Di Wu , Lirong Wu , Zicheng Liu , Jun Xia , Cheng Tan , Yang Liu , Baigui Sun , Stan Z. Li

3D reconstruction is a fundamental problem in computer vision, and the task is especially challenging when the object to reconstruct is partially or fully occluded. We introduce a method that uses the shadows cast by an unobserved object in…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Ruoshi Liu , Sachit Menon , Chengzhi Mao , Dennis Park , Simon Stent , Carl Vondrick