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Automatic discovery of category-specific 3D keypoints from a collection of objects of some category is a challenging problem. One reason is that not all objects in a category necessarily have the same semantic parts. The level of difficulty…

Computer Vision and Pattern Recognition · Computer Science 2021-01-07 Clara Fernandez-Labrador , Ajad Chhatkuli , Danda Pani Paudel , Jose J. Guerrero , Cédric Demonceaux , Luc Van Gool

Critical to the registration of point clouds is the establishment of a set of accurate correspondences between points in 3D space. The correspondence problem is generally addressed by the design of discriminative 3D local descriptors on the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Lei Zhou , Siyu Zhu , Zixin Luo , Tianwei Shen , Runze Zhang , Mingmin Zhen , Tian Fang , Long Quan

We study linear regressions in a context where the outcome of interest and some of the covariates are observed in two different datasets that cannot be matched. Traditional approaches obtain point identification by relying, often…

Econometrics · Economics 2025-11-18 Xavier D'Haultfoeuille , Christophe Gaillac , Arnaud Maurel

In recent years, point cloud representation has become one of the research hotspots in the field of computer vision, and has been widely used in many fields, such as autonomous driving, virtual reality, robotics, etc. Although deep learning…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Huang Zhang , Changshuo Wang , Shengwei Tian , Baoli Lu , Liping Zhang , Xin Ning , Xiao Bai

Small inter-class and large intra-class variations are the main challenges in fine-grained visual classification. Objects from different classes share visually similar structures and objects in the same class can have different poses and…

Computer Vision and Pattern Recognition · Computer Science 2019-09-09 Amir Erfan Eshratifar , David Eigen , Michael Gormish , Massoud Pedram

Efficient detection and description of geometric regions in images is a prerequisite in visual systems for localization and mapping. Such systems still rely on traditional hand-crafted methods for efficient generation of lightweight…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Menelaos Kanakis , Simon Maurer , Matteo Spallanzani , Ajad Chhatkuli , Luc Van Gool

Deep Candidate Generation plays an important role in large-scale recommender systems. It takes user history behaviors as inputs and learns user and item latent embeddings for candidate generation. In the literature, conventional methods…

Information Retrieval · Computer Science 2022-11-24 Ningning Li , Qunwei Li , Xichen Ding , Shaohu Chen , Wenliang Zhong

Change detection and irregular object extraction in 3D point clouds is a challenging task that is of high importance not only for autonomous navigation but also for updating existing digital twin models of various industrial environments.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Nikolaos Stathoulopoulos , Anton Koval , George Nikolakopoulos

We consider the problem of learning object arrangements in a 3D scene. The key idea here is to learn how objects relate to human poses based on their affordances, ease of use and reachability. In contrast to modeling object-object…

Machine Learning · Computer Science 2012-07-03 Yun Jiang , Marcus Lim , Ashutosh Saxena

A fundamental question in learning to classify 3D shapes is how to treat the data in a way that would allow us to construct efficient and accurate geometric processing and analysis procedures. Here, we restrict ourselves to networks that…

Computational Geometry · Computer Science 2019-10-04 Mor Joseph-Rivlin , Alon Zvirin , Ron Kimmel

A grand challenge in machine learning is the development of computational algorithms that match or outperform humans in perceptual inference tasks that are complicated by nuisance variation. For instance, visual object recognition involves…

Machine Learning · Statistics 2015-04-03 Ankit B. Patel , Tan Nguyen , Richard G. Baraniuk

Interest point detection is a common task in various computer vision applications. Although a big variety of detector are developed so far computational efficiency of interest point based image analysis remains to be the problem. Current…

Computer Vision and Pattern Recognition · Computer Science 2010-03-23 Vitaly Pimenov

Image space feature detection is the act of selecting points or parts of an image that are easy to distinguish from the surrounding image region. By combining a repeatable point detection with a descriptor, parts of an image can be matched…

Computer Vision and Pattern Recognition · Computer Science 2019-12-11 Alexander Mai , Joseph Menke , Allen Yang

Point cloud learning has lately attracted increasing attention due to its wide applications in many areas, such as computer vision, autonomous driving, and robotics. As a dominating technique in AI, deep learning has been successfully used…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Yulan Guo , Hanyun Wang , Qingyong Hu , Hao Liu , Li Liu , Mohammed Bennamoun

3D object detection is an essential task for computer vision applications in autonomous vehicles and robotics. However, models often struggle to quantify detection reliability, leading to poor performance on unfamiliar scenes. We introduce…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Nikita Durasov , Rafid Mahmood , Jiwoong Choi , Marc T. Law , James Lucas , Pascal Fua , Jose M. Alvarez

Human decision-making often relies on visual information from multiple perspectives or views. In contrast, machine learning-based object recognition utilizes information from a single image of the object. However, the information conveyed…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Mona Alzahrani , Muhammad Usman , Salma Kammoun , Saeed Anwar , Tarek Helmy

State-of-the-art approaches for 6D object pose estimation require large amounts of labeled data to train the deep networks. However, the acquisition of 6D object pose annotations is tedious and labor-intensive in large quantity. To…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Meng Tian , Gim Hee Lee

Effective learning of user preferences is critical to easing user burden in various types of matching problems. Equally important is active query selection to further reduce the amount of preference information users must provide. We…

Machine Learning · Computer Science 2012-06-22 Laurent Charlin , Rich Zemel , Craig Boutilier

Object retrieval and classification in point cloud data is challenged by noise, irregular sampling density and occlusion. To address this issue, we propose a point pair descriptor that is robust to noise and occlusion and achieves high…

Computer Vision and Pattern Recognition · Computer Science 2018-04-09 Dmytro Bobkov , Sili Chen , Ruiqing Jian , Muhammad Iqbal , Eckehard Steinbach

Most of the existing self-supervised feature learning methods for 3D data either learn 3D features from point cloud data or from multi-view images. By exploring the inherent multi-modality attributes of 3D objects, in this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2020-05-29 Longlong Jing , Yucheng Chen , Ling Zhang , Mingyi He , Yingli Tian