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While bird's-eye-view (BEV) perception models can be useful for building high-definition maps (HD-Maps) with less human labor, their results are often unreliable and demonstrate noticeable inconsistencies in the predicted HD-Maps from…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Ziyang Xie , Ziqi Pang , Yu-Xiong Wang

In autonomous driving, 3D object detection is essential for accurate perception and reliable decision-making. However, object motion and ego-motion often induce cross-frame spatiotemporal inconsistencies in BEV-based detectors, leading to…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Wenxuan Li , Qin Zou , Shoubing Chen , Chi Chen , Yingyi Yang , Shoubing Chen , Qingxiang Meng

Efficiently capturing the complex spatiotemporal representations from large-scale unlabeled traffic data remains to be a challenging task. In considering of the dilemma, this work employs the advanced contrastive learning and proposes a…

机器学习 · 计算机科学 2023-12-19 Lincan Li , Kaixiang Yang , Fengji Luo , Jichao Bi

Understanding the semantic shifts of multimodal information is only possible with models that capture cross-modal interactions over time. Under this paradigm, a new embedding is needed that structures visual-textual interactions according…

多媒体 · 计算机科学 2019-10-01 David Semedo , João Magalhães

Attempt to fully discover the temporal diversity and chronological characteristics for self-supervised video representation learning, this work takes advantage of the temporal dependencies within videos and further proposes a novel…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Yang Liu , Keze Wang , Haoyuan Lan , Liang Lin

Fusion is critical for a two-stream network. In this paper, we propose a novel temporal fusion (TF) module to fuse the two-stream joints' information to predict human motion, including a temporal concatenation and a reinforcement trajectory…

计算机视觉与模式识别 · 计算机科学 2021-04-13 Jin Tang , Jin Zhang , Jianqin Yin

Video restoration (VR) aims to recover high-quality videos from degraded ones. Although recent zero-shot VR methods using pre-trained diffusion models (DMs) show good promise, they suffer from approximation errors during reverse diffusion…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Hengkang Wang , Yang Liu , Huidong Liu , Chien-Chih Wang , Yanhui Guo , Hongdong Li , Bryan Wang , Ju Sun

Temporal grounding, which localizes video moments related to a natural language query, is a core problem of vision-language learning and video understanding. To encode video moments of varying lengths, recent methods employ a multi-level…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Thong Thanh Nguyen , Yi Bin , Xiaobao Wu , Zhiyuan Hu , Cong-Duy T Nguyen , See-Kiong Ng , Anh Tuan Luu

In this work, we focus on the challenge of temporally consistent human-centric dense prediction across video sequences. Existing models achieve strong per-frame accuracy but often flicker under motion, occlusion, and lighting changes, and…

计算机视觉与模式识别 · 计算机科学 2026-02-04 Xingyu Miao , Junting Dong , Qin Zhao , Yuhang Yang , Junhao Chen , Yang Long

Deep learning systems extensively use convolution operations to process input data. Though convolution is clearly defined for structured data such as 2D images or 3D volumes, this is not true for other data types such as sparse point…

计算机视觉与模式识别 · 计算机科学 2018-09-26 Pedro Hermosilla , Tobias Ritschel , Pere-Pau Vázquez , Àlvar Vinacua , Timo Ropinski

Recently, the methods based on Convolutional Neural Networks (CNNs) have gained popularity in the field of visual place recognition (VPR). In particular, the features from the middle layers of CNNs are more robust to drastic appearance…

计算机视觉与模式识别 · 计算机科学 2021-04-12 Feng Lu , Baifan Chen , Xiang-Dong Zhou , Dezhen Song

Most existing transformer based video instance segmentation methods extract per frame features independently, hence it is challenging to solve the appearance deformation problem. In this paper, we observe the temporal information is…

计算机视觉与模式识别 · 计算机科学 2023-01-24 Zhenghao Zhang , Fangtao Shao , Zuozhuo Dai , Siyu Zhu

We present a novel technique for self-supervised video representation learning by: (a) decoupling the learning objective into two contrastive subtasks respectively emphasizing spatial and temporal features, and (b) performing it…

计算机视觉与模式识别 · 计算机科学 2021-09-02 Zehua Zhang , David Crandall

We introduce Time-Conditioned Contraction Matching (TCCM), a novel method for semi-supervised anomaly detection in tabular data. TCCM is inspired by flow matching, a recent generative modeling framework that learns velocity fields between…

Class-incremental learning aims to continuously acquire new knowledge while preserving previously learned information, thereby mitigating catastrophic forgetting. Existing methods primarily restrict parameter updates but often overlook…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Mengxin Qin , Xiang Zhang , Kun Wei , Xu Yang , Cheng Deng

We present a novel method to learn temporally consistent 3D reconstruction of clothed people from a monocular video. Recent methods for 3D human reconstruction from monocular video using volumetric, implicit or parametric human shape…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Akin Caliskan , Armin Mustafa , Adrian Hilton

Correlation filters are special classifiers designed for shift-invariant object recognition, which are robust to pattern distortions. The recent literature shows that combining a set of sub-filters trained based on a single or a small group…

计算机视觉与模式识别 · 计算机科学 2018-02-14 Baochang Zhang , Shangzhen Luan , Chen Chen , Jungong Han , Wei Wang , Alessandro Perina , Ling Shao

Multi-session map merging is crucial for extended autonomous operations in large-scale environments. In this paper, we present GMLD, a learning-based local descriptor framework for large-scale multi-session point cloud map merging that…

机器人学 · 计算机科学 2026-01-01 Yanlong Ma , Nakul S. Joshi , Christa S. Robison , Philip R. Osteen , Brett T. Lopez

Deep metric learning (DML) is a cornerstone of many computer vision applications. It aims at learning a mapping from the input domain to an embedding space, where semantically similar objects are located nearby and dissimilar objects far…

计算机视觉与模式识别 · 计算机科学 2021-09-10 Artsiom Sanakoyeu , Pingchuan Ma , Vadim Tschernezki , Björn Ommer

Deepfakes have emerged as a significant threat to digital media authenticity, increasing the need for advanced detection techniques that can identify subtle and time-dependent manipulations. CNNs are effective at capturing spatial artifacts…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Aryan Thakre , Omkar Nagwekar , Vedang Talekar , Aparna Santra Biswas