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Recognizing human actions is fundamentally a spatio-temporal reasoning problem, and should be, at least to some extent, invariant to the appearance of the human and the objects involved. Motivated by this hypothesis, in this work, we take…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 Gorjan Radevski , Marie-Francine Moens , Tinne Tuytelaars

Articulated objects exist widely in the real world. However, previous 3D generative methods for unsupervised part decomposition are unsuitable for such objects, because they assume a spatially fixed part location, resulting in inconsistent…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Yuki Kawana , Yusuke Mukuta , Tatsuya Harada

Prior works for reconstructing hand-held objects from a single image train models on images paired with 3D shapes. Such data is challenging to gather in the real world at scale. Consequently, these approaches do not generalize well when…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Aditya Prakash , Matthew Chang , Matthew Jin , Ruisen Tu , Saurabh Gupta

We investigate a human-like interpretable model of video understanding. Humans recognise complex activities in video by recognising critical spatio-temporal relations among explicitly recognised objects and parts, for example, an object…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Anastasia Anichenko , Frank Guerin , Andrew Gilbert

Self-supervised learning (SSL) has revolutionized visual representation learning, but has not achieved the robustness of human vision. A reason for this could be that SSL does not leverage all the data available to humans during learning.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Arthur Aubret , Céline Teulière , Jochen Triesch

Low-level 3D representations, such as point clouds, meshes, NeRFs and 3D Gaussians, are commonly used for modeling 3D objects and scenes. However, cognitive studies indicate that human perception operates at higher levels and interprets 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Zhirui Gao , Renjiao Yi , Yuhang Huang , Wei Chen , Chenyang Zhu , Kai Xu

Recent advances have enabled 3d object reconstruction approaches using a single off-the-shelf RGB-D camera. Although these approaches are successful for a wide range of object classes, they rely on stable and distinctive geometric or…

Computer Vision and Pattern Recognition · Computer Science 2017-04-04 Dimitrios Tzionas , Juergen Gall

Objects manipulated by the hand (i.e., manipulanda) are particularly challenging to reconstruct from Internet videos. Not only does the hand occlude much of the object, but also the object is often only visible in a small number of image…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Jane Wu , Georgios Pavlakos , Georgia Gkioxari , Jitendra Malik

In autonomous driving, recent research has increasingly focused on collaborative perception based on deep learning to overcome the limitations of individual perception systems. Although these methods achieve high accuracy, they rely on high…

Robotics · Computer Science 2025-07-04 Maryem Fadili , Mohamed Anis Ghaoui , Louis Lecrosnier , Steve Pechberti , Redouane Khemmar

The analysis of the collaborative learning process is one of the growing fields of education research, which has many different analytic solutions. In this paper, we provided a new solution to improve automated collaborative learning…

Human-Computer Interaction · Computer Science 2019-04-18 Zhang Guo , Kevin Yu , Rebecca Pearlman , Nassir Navab , Roghayeh Barmaki

Human-object interaction (HOI) detection is an important part of understanding human activities and visual scenes. The long-tailed distribution of labeled instances is a primary challenge in HOI detection, promoting research in few-shot and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Zikun Zhuang , Ruihao Qian , Chi Xie , Shuang Liang

Learning geometry, motion, and appearance priors of object classes is important for the solution of a large variety of computer vision problems. While the majority of approaches has focused on static objects, dynamic objects, especially…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Fangyin Wei , Rohan Chabra , Lingni Ma , Christoph Lassner , Michael Zollhöfer , Szymon Rusinkiewicz , Chris Sweeney , Richard Newcombe , Mira Slavcheva

Reconstructing real-world objects and estimating their movable joint structures are pivotal technologies within the field of robotics. Previous research has predominantly focused on supervised approaches, relying on extensively annotated…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Haowen Wang , Zhen Zhao , Zhao Jin , Zhengping Che , Liang Qiao , Yakun Huang , Zhipeng Fan , Xiuquan Qiao , Jian Tang

As part of human core knowledge, the representation of objects is the building block of mental representation that supports high-level concepts and symbolic reasoning. While humans develop the ability of perceiving objects situated in 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 John Day , Tushar Arora , Jirui Liu , Li Erran Li , Ming Bo Cai

We propose a method to detect and reconstruct multiple 3D objects from a single RGB image. The key idea is to optimize for detection, alignment and shape jointly over all objects in the RGB image, while focusing on realistic and physically…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Francis Engelmann , Konstantinos Rematas , Bastian Leibe , Vittorio Ferrari

Recognizing human actions in untrimmed videos is an important challenging task. An effective 3D motion representation and a powerful learning model are two key factors influencing recognition performance. In this paper we introduce a new…

Computer Vision and Pattern Recognition · Computer Science 2018-12-31 Huy-Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

Robotic grasping is an essential and fundamental task and has been studied extensively over the past several decades. Traditional work analyzes physical models of the objects and computes force-closure grasps. Such methods require…

Robotics · Computer Science 2023-05-25 Yuwei Wu , Weixiao Liu , Zhiyang Liu , Gregory S. Chirikjian

We present a method for reconstructing accurate and consistent 3D hands from a monocular video. We observe that detected 2D hand keypoints and the image texture provide important cues about the geometry and texture of the 3D hand, which can…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Zhigang Tu , Zhisheng Huang , Yujin Chen , Di Kang , Linchao Bao , Bisheng Yang , Junsong Yuan

We present a unified framework tackling two problems: class-specific 3D reconstruction from a single image, and generation of new 3D shape samples. These tasks have received considerable attention recently; however, most existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Paul Henderson , Vittorio Ferrari

If a robot is supposed to roam an environment and interact with objects, it is often necessary to know all possible objects in advance, so that a database with models of all objects can be generated for visual identification. However, this…

Artificial Intelligence · Computer Science 2015-10-05 Laura Steinert , Jens Hoefinghoff , Josef Pauli