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We propose a solution to detect anomalous events in videos without the need to train a model offline. Specifically, our solution is based on a randomly-initialized multilayer perceptron that is optimized online to reconstruct video frames,…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Yuqi Ouyang , Guodong Shen , Victor Sanchez

Matching deformable objects using their shapes is an important problem in computer vision since shape is perhaps the most distinguishable characteristic of an object. The problem is difficult due to many factors such as intra-class…

Computer Vision and Pattern Recognition · Computer Science 2015-04-28 Smit Marvaniya , Raj Gupta , Anurag Mittal

Face image animation from a single image has achieved remarkable progress. However, it remains challenging when only sparse landmarks are available as the driving signal. Given a source face image and a sequence of sparse face landmarks,…

Computer Vision and Pattern Recognition · Computer Science 2021-09-06 Ruiqi Zhao , Tianyi Wu , Guodong Guo

In this work we present Polaffini, a robust and versatile framework for anatomically grounded registration. Medical image registration is dominated by intensity-based registration methods that rely on surrogate measures of alignment…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Antoine Legouhy , Cosimo Campo , Ross Callaghan , Hojjat Azadbakht , Hui Zhang

Recording surgery in operating rooms is an essential task for education and evaluation of medical treatment. However, recording the desired targets, such as the surgery field, surgical tools, or doctor's hands, is difficult because the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Ryo Hachiuma , Tomohiro Shimizu , Hideo Saito , Hiroki Kajita , Yoshifumi Takatsume

Reliably and physically accurately transferring information between images through deformable image registration with large anatomical differences is an open challenge in medical image analysis. Most existing methods have two key…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Georgios Andreadis , Peter A. N. Bosman , Tanja Alderliesten

We present a novel unsupervised deep learning framework for anomalous event detection in complex video scenes. While most existing works merely use hand-crafted appearance and motion features, we propose Appearance and Motion DeepNet (AMDN)…

Computer Vision and Pattern Recognition · Computer Science 2015-10-07 Dan Xu , Elisa Ricci , Yan Yan , Jingkuan Song , Nicu Sebe

Existing deep learning methods for action recognition in videos require a large number of labeled videos for training, which is labor-intensive and time-consuming. For the same action, the knowledge learned from different media types, e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Yang Liu , Zhaoyang Lu , Jing Li , Tao Yang , Chao Yao

In the study, we present AMFusionNet, an innovative approach to infrared and visible image fusion (IVIF), harnessing the power of multiple kernel sizes and attention mechanisms. By assimilating thermal details from infrared images with…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Qian Xu

Diffeomorphic deformable multi-modal image registration is a challenging task which aims to bring images acquired by different modalities to the same coordinate space and at the same time to preserve the topology and the invertibility of…

Image and Video Processing · Electrical Eng. & Systems 2022-03-16 Vasiliki Sideri-Lampretsa , Georgios Kaissis , Daniel Rueckert

Non-rigid inter-modality registration can facilitate accurate information fusion from different modalities, but it is challenging due to the very different image appearances across modalities. In this paper, we propose to train a non-rigid…

Computer Vision and Pattern Recognition · Computer Science 2018-05-01 Xiaohuan Cao , Jianhua Yang , Li Wang , Zhong Xue , Qian Wang , Dinggang Shen

In the field of spatial computing, one of the most essential tasks is the pose estimation of 3D objects. While rigid transformations of arbitrary 3D objects are relatively hard to detect due to varying environment introducing factors like…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Sining Huang , Yukun Song , Yixiao Kang , Chang Yu

In the field of computer vision, visible light images often exhibit low contrast in low-light conditions, presenting a significant challenge. While infrared imagery provides a potential solution, its utilization entails high costs and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Yijia Chen , Pinghua Chen , Xiangxin Zhou , Yingtie Lei , Ziyang Zhou , Mingxian Li

Infrared and visible image fusion, a hot topic in the field of image processing, aims at obtaining fused images keeping the advantages of source images. This paper proposes a novel auto-encoder (AE) based fusion network. The core idea is…

Image and Video Processing · Electrical Eng. & Systems 2021-04-09 Zixiang Zhao , Shuang Xu , Chunxia Zhang , Junmin Liu , Pengfei Li , Jiangshe Zhang

Sparse query-based paradigms have achieved significant success in multi-view 3D detection for autonomous vehicles. Current research faces challenges in balancing between enlarging receptive fields and reducing interference when aggregating…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Jiasen Wang , Zhenglin Li , Ke Sun , Xianyuan Liu , Yang Zhou

We propose a novel framework for video inpainting by adopting an internal learning strategy. Unlike previous methods that use optical flow for cross-frame context propagation to inpaint unknown regions, we show that this can be achieved…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Hao Ouyang , Tengfei Wang , Qifeng Chen

Given a single photo of a room and a large database of furniture CAD models, our goal is to reconstruct a scene that is as similar as possible to the scene depicted in the photograph, and composed of objects drawn from the database. We…

Computer Vision and Pattern Recognition · Computer Science 2017-04-25 Hamid Izadinia , Qi Shan , Steven M. Seitz

Calibrating sports cameras is important for autonomous broadcasting and sports analysis. Here we propose a highly automatic method for calibrating sports cameras from a single image using synthetic data. First, we develop a novel camera…

Computer Vision and Pattern Recognition · Computer Science 2018-10-26 Jianhui Chen , James J. Little

LiDAR and photogrammetry are active and passive remote sensing techniques for point cloud acquisition, respectively, offering complementary advantages and heterogeneous. Due to the fundamental differences in sensing mechanisms, spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Chen Wang , Yanfeng Gu , Xian Li

Face forgery by deepfake is widely spread over the internet and this raises severe societal concerns. In this paper, we propose a novel video transformer with incremental learning for detecting deepfake videos. To better align the input…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Sohail A. Khan , Hang Dai