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The creation of manipulated multimedia content involving human characters has reached in the last years unprecedented realism, calling for automated techniques to expose synthetically generated faces in images and videos. This work explores…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Mattia Bonomi , Cecilia Pasquini , Giulia Boato

Scene text removal (STR) is a challenging task due to the complex text fonts, colors, sizes, and background textures in scene images. However, most previous methods learn both text location and background inpainting implicitly within a…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Guangtao Lyu , Anna Zhu

In this work we tackle the task of video-based visual emotion recognition in the wild. Standard methodologies that rely solely on the extraction of bodily and facial features often fall short of accurate emotion prediction in cases where…

Computer Vision and Pattern Recognition · Computer Science 2022-02-03 Ioannis Pikoulis , Panagiotis P. Filntisis , Petros Maragos

In video super-resolution, the spatio-temporal coherence between, and among the frames must be exploited appropriately for accurate prediction of the high resolution frames. Although 2D convolutional neural networks (CNNs) are powerful in…

Computer Vision and Pattern Recognition · Computer Science 2019-06-21 Soo Ye Kim , Jeongyeon Lim , Taeyoung Na , Munchurl Kim

Removing rain streaks from a single image has been drawing considerable attention as rain streaks can severely degrade the image quality and affect the performance of existing outdoor vision tasks. While recent CNN-based derainers have…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Tianyu Wang , Xin Yang , Ke Xu , Shaozhe Chen , Qiang Zhang , Rynson Lau

This paper formulates a new problem, instance shadow detection, which aims to detect shadow instance and the associated object instance that cast each shadow in the input image. To approach this task, we first compile a new dataset with the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Tianyu Wang , Xiaowei Hu , Pheng-Ann Heng , Chi-Wing Fu

Shadow-affected images often exhibit pronounced spatial discrepancies in color and illumination, consequently degrading various vision applications including object detection and segmentation systems. To effectively eliminate shadows in…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Wei Dong , Han Zhou , Yuqiong Tian , Jingke Sun , Xiaohong Liu , Guangtao Zhai , Jun Chen

Moving target shadows among video synthetic aperture radar (Video-SAR) images are always interfered by low scattering backgrounds and cluttered noises, causing poor detec-tion-tracking accuracy. Thus, a shadow-background-noise 3D spatial…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Xiaowo Xu , Xiaoling Zhang , Tianwen Zhang , Zhenyu Yang , Jun Shi , Xu Zhan

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

Existing shadow detection models struggle to differentiate dark image areas from shadows. In this paper, we tackle this issue by verifying that all detected shadows are real, i.e. they have paired shadow casters. We perform this step in a…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 Nikolina Kubiak , Elliot Wortman , Armin Mustafa , Graeme Phillipson , Stephen Jolly , Simon Hadfield

Removing soft and self shadows that lack clear boundaries from a single image is still challenging. Self shadows are shadows that are cast on the object itself. Most existing methods rely on binary shadow masks, without considering the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Yeying Jin , Wei Ye , Wenhan Yang , Yuan Yuan , Robby T. Tan

Each scanner possesses its unique characteristics and exhibits its distinct sampling error distribution. Training a network on a dataset that includes data collected from different scanners is less effective than training it on data…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Zhikun Tu , Yuhe Zhang , Yiou Jia , Kang Li , Daniel Cohen-Or

When analyzing human motion videos, the output jitters from existing pose estimators are highly-unbalanced with varied estimation errors across frames. Most frames in a video are relatively easy to estimate and only suffer from slight…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Ailing Zeng , Lei Yang , Xuan Ju , Jiefeng Li , Jianyi Wang , Qiang Xu

Video person re-identification (re-ID) plays an important role in surveillance video analysis. However, the performance of video re-ID degenerates severely under partial occlusion. In this paper, we propose a novel network, called…

Computer Vision and Pattern Recognition · Computer Science 2019-07-22 Ruibing Hou , Bingpeng Ma , Hong Chang , Xinqian Gu , Shiguang Shan , Xilin Chen

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

Editing faces in videos is a popular yet challenging aspect of computer vision and graphics, which encompasses several applications including facial attractiveness enhancement, makeup transfer, face replacement, and expression manipulation.…

Computer Vision and Pattern Recognition · Computer Science 2014-08-12 Xiaoyan Li , Dacheng Tao

Human pose estimation focuses on predicting body keypoints to analyze human motion. Currently, most pose estimation tasks rely on conventional RGB cameras. In contrast, event cameras provide high temporal resolution and low latency,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Haoxian Zhou , Chuanzhi Xu , Langyi Chen , Pengfei Ye , Haodong Chen , Yuk Ying Chung , Qiang Qu

This paper focuses on the limitations of current over-parameterized shadow removal models. We present a novel lightweight deep neural network that processes shadow images in the LAB color space. The proposed network termed "LAB-Net", is…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Hong Yang , Gongrui Nan , Mingbao Lin , Fei Chao , Yunhang Shen , Ke Li , Rongrong Ji

Spatial and temporal modeling is one of the most core aspects of few-shot action recognition. Most previous works mainly focus on long-term temporal relation modeling based on high-level spatial representations, without considering the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Jiazheng Xing , Mengmeng Wang , Yong Liu , Boyu Mu

Exposure correction aims to enhance visual data suffering from improper exposures, which can greatly improve satisfactory visual effects. However, previous methods mainly focus on the image modality, and the video counterpart is less…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Jin Liu , Bo Wang , Chuanming Wang , Huiyuan Fu , Huadong Ma