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In this paper, we introduce a deep learning solution for video activity recognition that leverages an innovative combination of convolutional layers with a linear-complexity attention mechanism. Moreover, we introduce a novel quantization…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Gabriele Lagani , Fabrizio Falchi , Claudio Gennaro , Giuseppe Amato

Recent advances in foundational 3D reconstruction models, such as DUSt3R and MASt3R, have shown great potential in 2D and 3D correspondence in static scenes. In this paper, we propose to adapt them for the task of point tracking through 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Rhodri Guerrier , Adam W. Harley , Dima Damen

Event cameras are bio-inspired sensors that offer several advantages, such as low latency, high-speed and high dynamic range, to tackle challenging scenarios in computer vision. This paper presents a solution to the problem of 3D…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Yi Zhou , Guillermo Gallego , Henri Rebecq , Laurent Kneip , Hongdong Li , Davide Scaramuzza

Powerful 3D representations such as DUSt3R invariant point maps, which encode 3D shape and camera parameters, have significantly advanced feed forward 3D reconstruction. While point maps assume static scenes, Dynamic Point Maps (DPMs)…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Edgar Sucar , Eldar Insafutdinov , Zihang Lai , Andrea Vedaldi

Despite significant progress in image-based 3D scene flow estimation, the performance of such approaches has not yet reached the fidelity required by many applications. Simultaneously, these applications are often not restricted to…

Computer Vision and Pattern Recognition · Computer Science 2019-01-08 Aseem Behl , Despoina Paschalidou , Simon Donné , Andreas Geiger

Pose estimation from unordered images is fundamental for 3D reconstruction, robotics, and scientific imaging. Recent geometric foundation models, such as DUSt3R, enable end-to-end dense 3D reconstruction but remain underexplored in…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Jiakai Zhang , Shouchen Zhou , Haizhao Dai , Xinhang Liu , Peihao Wang , Zhiwen Fan , Yuan Pei , Jingyi Yu

We present WinT3R, a feed-forward reconstruction model capable of online prediction of precise camera poses and high-quality point maps. Previous methods suffer from a trade-off between reconstruction quality and real-time performance. To…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Zizun Li , Jianjun Zhou , Yifan Wang , Haoyu Guo , Wenzheng Chang , Yang Zhou , Haoyi Zhu , Junyi Chen , Chunhua Shen , Tong He

In this paper, we introduce a novel approach that harnesses both 2D and 3D attentions to enable highly accurate depth completion without requiring iterative spatial propagations. Specifically, we first enhance a baseline convolutional depth…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Yunxiao Shi , Manish Kumar Singh , Hong Cai , Fatih Porikli

Simultaneous understanding and 3D reconstruction plays an important role in developing end-to-end embodied intelligent systems. To achieve this, recent approaches resort to 2D-to-3D feature alignment paradigm, which leads to limited 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Qi Xu , Dongxu Wei , Lingzhe Zhao , Wenpu Li , Zhangchi Huang , Shunping Ji , Peidong Liu

Monocular 3D object detection (M3OD) is intrinsically ill-posed, hence training a high-performance deep learning based M3OD model requires a humongous amount of labeled data with complicated visual variation from diverse scenes, variety of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Zhaonian Kuang , Rui Ding , Meng Yang , Xinhu Zheng , Gang Hua

Applying deep neural networks to 3D point cloud processing has attracted increasing attention due to its advanced performance in many areas, such as AR/VR, autonomous driving, and robotics. However, as neural network models and 3D point…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Kaixin Xu , Qingtian Feng , Hao Chen , Zhe Wang , Xue Geng , Xulei Yang , Min Wu , Xiaoli Li , Weisi Lin

Despite the progress on 3D point cloud deep learning, most prior works focus on learning features that are invariant to translation and point permutation, and very limited efforts have been devoted for rotation invariant property. Several…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Zhiyuan Zhang , Licheng Yang , Zhiyu Xiang

Adapting pre-trained image models to video modality has proven to be an effective strategy for robust few-shot action recognition. In this work, we explore the potential of adapter tuning in image-to-video model adaptation and propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Wenjie Pei , Qizhong Tan , Guangming Lu , Jiandong Tian , Jun Yu

LiDAR point clouds are widely used in autonomous driving and consist of large numbers of 3D points captured at high frequency to represent surrounding objects such as vehicles, pedestrians, and traffic signs. While this dense data enables…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Z. Rozsa , Á. Madaras , Q. Wei , X. Lu , M. Golarits , H. Yuan , T. Sziranyi , R. Hamzaoui

Panoptic segmentation of 3D scenes, involving the segmentation and classification of object instances in a dense 3D reconstruction of a scene, is a challenging problem, especially when relying solely on unposed 2D images. Existing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Lojze Zust , Yohann Cabon , Juliette Marrie , Leonid Antsfeld , Boris Chidlovskii , Jerome Revaud , Gabriela Csurka

In this study, we address the challenge of 3D scene structure recovery from monocular depth estimation. While traditional depth estimation methods leverage labeled datasets to directly predict absolute depth, recent advancements advocate…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Chi Zhang , Wei Yin , Gang Yu , Zhibin Wang , Tao Chen , Bin Fu , Joey Tianyi Zhou , Chunhua Shen

Hand gesture recognition is a strenuous task to solve in videos. In this paper, we use a 3D residual attention network which is trained end to end for hand gesture recognition. Based on the stacked multiple attention blocks, we build a 3D…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Naina Dhingra , Andreas Kunz

Depth estimation is a crucial technology in robotics. Recently, self-supervised depth estimation methods have demonstrated great potential as they can efficiently leverage large amounts of unlabelled real-world data. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Siyu Chen , Hong Liu , Wenhao Li , Ying Zhu , Guoquan Wang , Jianbing Wu

Recovering dense 3D geometry from unposed images remains a foundational challenge in computer vision. Current state-of-the-art models are predominantly trained on perspective datasets, which implicitly constrains them to a standard pinhole…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Namitha Guruprasad , Abhay Yadav , Cheng Peng , Rama Chellappa

Large Foundation Models like Dust3r can produce high quality outputs such as pointmaps, camera intrinsics, and depth estimation, given stereo-image pairs as input. However, the application of these outputs on tasks like Visual Localization…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Aditya Dutt , Ishikaa Lunawat , Manpreet Kaur