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We introduce the Temporal Contrastive Transformer (TCT), a representation learning framework designed to capture contextual temporal dynamics in sequences of financial transactions. The model is trained using a self-supervised contrastive…

Machine Learning · Computer Science 2026-05-22 Danny Butvinik , Yonit Marcus , Nitzan Tal , Gabrielle Azoulay

The rapid evolution of generative adversarial networks (GANs) and diffusion models has made synthetic media increasingly realistic, raising societal concerns around misinformation, identity fraud, and digital trust. Existing deepfake…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Sales Aribe

Remote sensing (RS) images are important to monitor and survey earth at varying spatial scales. Continuous observations from various RS sources complement single observations to improve applications. Fusion into single or multiple images…

Image and Video Processing · Electrical Eng. & Systems 2024-04-30 Hessah Albanwan

Temporal anomaly detection looks for irregularities over space-time. Unsupervised temporal models employed thus far typically work on sequences of feature vectors, and much less on temporal multiway data. We focus our investigation on…

Machine Learning · Computer Science 2020-09-22 Duc Nguyen , Phuoc Nguyen , Kien Do , Santu Rana , Sunil Gupta , Truyen Tran

Temporal image forensics is the science of estimating the age of a digital image. Usually, time-dependent traces (age traces) introduced by the image acquisition pipeline are exploited for this purpose. In this review, a comprehensive…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Robert Jöchl , Andreas Uhl

With the continuous research on Deepfake forensics, recent studies have attempted to provide the fine-grained localization of forgeries, in addition to the coarse classification at the video-level. However, the detection and localization…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Wu Haiwei , Zhou Jiantao , Zhang Shile , Tian Jinyu

3D object detection using point clouds has attracted increasing attention due to its wide applications in autonomous driving and robotics. However, most existing studies focus on single point cloud frames without harnessing the temporal…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Zhipeng Luo , Gongjie Zhang , Changqing Zhou , Tianrui Liu , Shijian Lu , Liang Pan

We propose a late-to-early recurrent feature fusion scheme for 3D object detection using temporal LiDAR point clouds. Our main motivation is fusing object-aware latent embeddings into the early stages of a 3D object detector. This feature…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Tong He , Pei Sun , Zhaoqi Leng , Chenxi Liu , Dragomir Anguelov , Mingxing Tan

This paper proposes a novel framework for lung sound event detection, segmenting continuous lung sound recordings into discrete events and performing recognition on each event. Exploiting the lightweight nature of Temporal Convolution…

Object detection is an essential task for autonomous robots operating in dynamic and changing environments. A robot should be able to detect objects in the presence of sensor noise that can be induced by changing lighting conditions for…

Robotics · Computer Science 2019-11-20 Oier Mees , Andreas Eitel , Wolfram Burgard

Existing methods on audio-visual deepfake detection mainly focus on high-level features for modeling inconsistencies between audio and visual data. As a result, these approaches usually overlook finer audio-visual artifacts, which are…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Marcella Astrid , Enjie Ghorbel , Djamila Aouada

Despite significant progress in autonomous navigation, a critical gap remains in ensuring reliable localization in hazardous environments such as tunnels, urban disaster zones, and underground structures. Tunnels present a uniquely…

Robotics · Computer Science 2025-05-07 Lukas Schichler , Karin Festl , Selim Solmaz , Daniel Watzenig

Reliable UAV object detection requires robustness to illumination changes, motion blur, and scene dynamics that suppress RGB cues. Thermal long-wave infrared (LWIR) sensing preserves contrast in low light, and event cameras retain…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Craig Iaboni , Pramod Abichandani

How to obtain informative representations of transactions and then perform the identification of fraudulent transactions is a crucial part of ensuring financial security. Recent studies apply Graph Neural Networks (GNNs) to the transaction…

Machine Learning · Computer Science 2023-07-12 Yue Tian , Guanjun Liu

We propose a unified object-aware temporal learning framework for multi-view 3D detection and tracking tasks. Having observed that the efficacy of the temporal fusion strategy in recent multi-view perception methods may be weakened by…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Mingzhe Guo , Zhipeng Zhang , Liping Jing , Yuan He , Ke Wang , Heng Fan

Collaborative perception, fusing information from multiple agents, can extend perception range so as to improve perception performance. However, temporal asynchrony in real-world environments, caused by communication delays, clock…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Yunjiang Xu , Lingzhi Li , Jin Wang , Benyuan Yang , Zhiwen Wu , Xinhong Chen , Jianping Wang

Differential ghost imaging was attempted in time domain, i.e., temporal differential ghost imaging (TDGI), using pseudo-randomized light pulses and a temporal object consisting of no-return-to-zero bit patterns of varying duty. Evaluation…

Applied Physics · Physics 2017-09-13 Yoshiki O-oka , Susumu Fukatsu

Face image synthesis is gaining more attention in computer security due to concerns about its potential negative impacts, including those related to fake biometrics. Hence, building models that can detect the synthesized face images is an…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Roberto Leyva , Victor Sanchez , Gregory Epiphaniou , Carsten Maple

Most of researches on image forensics have been mainly focused on detection of artifacts introduced by a single processing tool. They lead in the development of many specialized algorithms looking for one or more particular footprints under…

Computer Vision and Pattern Recognition · Computer Science 2017-01-31 Habib Ghaffari Hadigheh , Ghazali bin sulong

Accurate moving object segmentation is an essential task for autonomous driving. It can provide effective information for many downstream tasks, such as collision avoidance, path planning, and static map construction. How to effectively…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Jiadai Sun , Yuchao Dai , Xianjing Zhang , Jintao Xu , Rui Ai , Weihao Gu , Xieyuanli Chen