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Simultaneous localization and mapping (SLAM) has been a hot research field in the past years. Against the backdrop of more affordable 3D LiDAR sensors, research on 3D LiDAR SLAM is becoming increasingly popular. Furthermore, the…

机器人学 · 计算机科学 2021-09-02 Ziqi Chai , Xiaoyu Shi , Yan Zhou , Zhenhua Xiong

Motivated by augmented and virtual reality applications such as telepresence, there has been a recent focus in real-time performance capture of humans under motion. However, given the real-time constraint, these systems often suffer from…

Numerous video frame sampling methodologies detailed in the literature present a significant challenge in determining the optimal video frame method for Video RAG pattern without a comparative side-by-side analysis. In this work, we…

多媒体 · 计算机科学 2024-08-08 Mahesh Kandhare , Thibault Gisselbrecht

Person re-identification (re-id) is a critical problem in video analytics applications such as security and surveillance. The public release of several datasets and code for vision algorithms has facilitated rapid progress in this area over…

计算机视觉与模式识别 · 计算机科学 2018-02-15 Srikrishna Karanam , Mengran Gou , Ziyan Wu , Angels Rates-Borras , Octavia Camps , Richard J. Radke

Video identity customization seeks to synthesize realistic, temporally coherent videos of a specific subject, given a single reference image and a text prompt. This task presents two core challenges: (1) maintaining identity consistency…

计算机视觉与模式识别 · 计算机科学 2026-02-04 Guiyu Zhang , Chen Shi , Zijian Jiang , Xunzhi Xiang , Jingjing Qian , Shaoshuai Shi , Li Jiang

We address representation learning for large-scale instance-level image retrieval. Apart from backbone, training pipelines and loss functions, popular approaches have focused on different spatial pooling and attention mechanisms, which are…

计算机视觉与模式识别 · 计算机科学 2021-07-19 Chull Hwan Song , Hye Joo Han , Yannis Avrithis

Person re-identification is an important technique towards automatic search of a person's presence in a surveillance video. Two fundamental problems are critical for person re-identification, feature representation and metric learning. An…

计算机视觉与模式识别 · 计算机科学 2015-05-07 Shengcai Liao , Yang Hu , Xiangyu Zhu , Stan Z. Li

The standard approach for visual place recognition is to use global image descriptors to retrieve the most similar database images for a given query image. The results can then be further improved with re-ranking methods that re-order the…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Gustav Hanning , Gabrielle Flood , Viktor Larsson

Video-based person re-identification deals with the inherent difficulty of matching unregulated sequences with different length and with incomplete target pose/viewpoint structure. Common approaches operate either by reducing the problem to…

计算机视觉与模式识别 · 计算机科学 2019-03-28 Alessandro Borgia , Yang Hua , Elyor Kodirov , Neil M. Robertson

This paper addresses the person re-identification (PReID) problem by combining global and local information at multiple feature resolutions with different loss functions. Many previous studies address this problem using either part-based…

计算机视觉与模式识别 · 计算机科学 2019-10-29 Arda Efe Okay , Manal AlGhamdi , Robert Westendorp , Mohamed Abdel-Mottaleb

We propose a novel vector aggregation technique for compact video representation, with application in accurate similarity detection within large video datasets. The current state-of-the-art in visual search is formed by the vector of…

多媒体 · 计算机科学 2015-09-15 Alhabib Abbas , Nikos Deligiannis , Yiannis Andreopoulos

Video salient object detection (VSOD) is an important task in many vision applications. Reliable VSOD requires to simultaneously exploit the information from both the spatial domain and the temporal domain. Most of the existing algorithms…

计算机视觉与模式识别 · 计算机科学 2021-05-13 Yi Tang , Yuanman Li , Guoliang Xing

Video-based person re-identification (reID) aims to retrieve person videos with the same identity as a query person across multiple cameras. Spatial and temporal distractors in person videos, such as background clutter and partial…

计算机视觉与模式识别 · 计算机科学 2021-08-23 Chanho Eom , Geon Lee , Junghyup Lee , Bumsub Ham

In this paper, we propose a novel method called AlignedReID that extracts a global feature which is jointly learned with local features. Global feature learning benefits greatly from local feature learning, which performs an…

计算机视觉与模式识别 · 计算机科学 2018-02-01 Xuan Zhang , Hao Luo , Xing Fan , Weilai Xiang , Yixiao Sun , Qiqi Xiao , Wei Jiang , Chi Zhang , Jian Sun

Video editing and synthesis often introduce object inconsistencies, such as frame flicker and identity drift that degrade perceptual quality. To address these issues, we introduce ObjectAlign, a novel framework that seamlessly blends…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Mustafa Munir , Harsh Goel , Xiwen Wei , Minkyu Choi , Sahil Shah , Kartikeya Bhardwaj , Paul Whatmough , Sandeep Chinchali , Radu Marculescu

This paper describes a multi-modal data association method for global localization using object-based maps and camera images. In global localization, or relocalization, using object-based maps, existing methods typically resort to matching…

计算机视觉与模式识别 · 计算机科学 2024-02-12 Shigemichi Matsuzaki , Takuma Sugino , Kazuhito Tanaka , Zijun Sha , Shintaro Nakaoka , Shintaro Yoshizawa , Kazuhiro Shintani

With the rapid development of facial manipulation techniques, face forgery detection has received considerable attention in digital media forensics due to security concerns. Most existing methods formulate face forgery detection as a…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Shen Chen , Taiping Yao , Yang Chen , Shouhong Ding , Jilin Li , Rongrong Ji

We propose the first approach for the decomposition of a monocular color video into direct and indirect illumination components in real time. We retrieve, in separate layers, the contribution made to the scene appearance by the scene…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Abhimitra Meka , Mohammad Shafiei , Michael Zollhoefer , Christian Richardt , Christian Theobalt

Visual place recognition is a critical task in computer vision, especially for localization and navigation systems. Existing methods often rely on contrastive learning: image descriptors are trained to have small distance for similar images…

计算机视觉与模式识别 · 计算机科学 2024-01-30 María Leyva-Vallina , Nicola Strisciuglio , Nicolai Petkov

We address the problem of temporal localization of repetitive activities in a video, i.e., the problem of identifying all segments of a video that contain some sort of repetitive or periodic motion. To do so, the proposed method represents…

计算机视觉与模式识别 · 计算机科学 2019-10-15 Giorgos Karvounas , Iason Oikonomidis , Antonis Argyros