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We study the problem of extracting biometric information of individuals by looking at shadows of objects cast on diffuse surfaces. We show that the biometric information leakage from shadows can be sufficient for reliable identity inference…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Safa C. Medin , Amir Weiss , Frédo Durand , William T. Freeman , Gregory W. Wornell

Face detection has witnessed immense progress in the last few years, with new milestones being surpassed every year. While many challenges such as large variations in scale, pose, appearance are successfully addressed, there still exist…

Computer Vision and Pattern Recognition · Computer Science 2018-08-09 Hajime Nada , Vishwanath A. Sindagi , He Zhang , Vishal M. Patel

Visual place recognition tasks often encounter significant challenges in landmark detection due to the presence of irrelevant objects such as humans, cars, and trees, despite the remarkable progress achieved by previous models, especially…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Mohammad Javad Rajabi , Morteza Mirzai , Ahmad Nickabadi

Recognition of the surrounding environment using a camera is an important technology in Advanced Driver-Assistance Systems and Autonomous Driving, and recognition technology is often solved by machine learning approaches such as deep…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Genya Ogawa , Toru Saito , Noriyuki Aoi

Existing methods for enhancing dark images captured in a very low-light environment assume that the intensity level of the optimal output image is known and already included in the training set. However, this assumption often does not hold,…

Image and Video Processing · Electrical Eng. & Systems 2023-04-05 Evgeny Hershkovitch Neiterman , Michael Klyuchka , Gil Ben-Artzi

Although huge progress has been made on scene analysis in recent years, most existing works assume the input images to be in day-time with good lighting conditions. In this work, we aim to address the night-time scene parsing (NTSP)…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Xin Tan , Ke Xu , Ying Cao , Yiheng Zhang , Lizhuang Ma , Rynson W. H. Lau

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

Low-light environments pose significant challenges for image enhancement methods. To address these challenges, in this work, we introduce the HUE dataset, a comprehensive collection of high-resolution event and frame sequences captured in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Burak Ercan , Onur Eker , Aykut Erdem , Erkut Erdem

Facial shadows often degrade image quality and the performance of vision algorithms. Existing methods struggle to remove shadows while preserving texture, especially under complex lighting conditions, and they lack real-world paired…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Tailong Luo , Jiesong Bai , Jinyang Huang , Junyu Xia , Wangyu Wu , Xuhang Chen

We present a new public dataset with a focus on simulating robotic vision tasks in everyday indoor environments using real imagery. The dataset includes 20,000+ RGB-D images and 50,000+ 2D bounding boxes of object instances densely captured…

Computer Vision and Pattern Recognition · Computer Science 2017-03-07 Phil Ammirato , Patrick Poirson , Eunbyung Park , Jana Kosecka , Alexander C. Berg

Salient object detection (SOD) is a long-standing research topic in computer vision and has drawn an increasing amount of research interest in the past decade. This paper provides the first comprehensive review and benchmark for light field…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Keren Fu , Yao Jiang , Ge-Peng Ji , Tao Zhou , Qijun Zhao , Deng-Ping Fan

Images acquired by computer vision systems under low light conditions have multiple characteristics like high noise, lousy illumination, reflectance, and bad contrast, which make object detection tasks difficult. Much work has been done to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Winston Chen , Tejas Shah

In the realm of image composition, generating realistic shadow for the inserted foreground remains a formidable challenge. Previous works have developed image-to-image translation models which are trained on paired training data. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Qingyang Liu , Junqi You , Jianting Wang , Xinhao Tao , Bo Zhang , Li Niu

Video analytics systems designed for deployment in outdoor conditions can be vulnerable to many environmental changes, particularly changes in shadow. Existing works have shown that shadow and its introduced distribution shift can cause…

Image and Video Processing · Electrical Eng. & Systems 2024-10-08 Shengtai Ju , Amy R. Reibman

Recent deep learning methods have achieved promising results in image shadow removal. However, most of the existing approaches focus on working locally within shadow and non-shadow regions, resulting in severe artifacts around the shadow…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Lanqing Guo , Siyu Huang , Ding Liu , Hao Cheng , Bihan Wen

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

Selecting the most suitable local invariant feature detector for a particular application has rendered the task of evaluating feature detectors a critical issue in vision research. Although the literature offers a variety of comparison…

Computer Vision and Pattern Recognition · Computer Science 2017-10-16 Bruno Ferrarini , Shoaib Ehsan , Ales Leonardis , Naveed Ur Rehman , Klaus D. McDonald-Maier

Visual understanding of complex urban street scenes is an enabling factor for a wide range of applications. Object detection has benefited enormously from large-scale datasets, especially in the context of deep learning. For semantic urban…

Computer Vision and Pattern Recognition · Computer Science 2016-04-08 Marius Cordts , Mohamed Omran , Sebastian Ramos , Timo Rehfeld , Markus Enzweiler , Rodrigo Benenson , Uwe Franke , Stefan Roth , Bernt Schiele

Object detection in densely packed scenes is a new area where standard object detectors fail to train well. Dense object detectors like RetinaNet trained on large and dense datasets show great performance. We train a standard object…

Computer Vision and Pattern Recognition · Computer Science 2020-01-09 Srikrishna Varadarajan , Sonaal Kant , Muktabh Mayank Srivastava

Accurate lane detection is essential for automated driving, enabling safe and reliable vehicle navigation across a variety of road scenarios. Numerous datasets have been introduced to support the development and evaluation of lane detection…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Jörg Gamerdinger , Sven Teufel , Oliver Bringmann