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Accurate, robust, and real-time LiDAR-based odometry (LO) is imperative for many applications like robot navigation, globally consistent 3D scene map reconstruction, or safe motion-planning. Though LiDAR sensor is known for its precise…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Sk Aziz Ali , Djamila Aouada , Gerd Reis , Didier Stricker

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…

Computer Vision and Pattern Recognition · Computer Science 2015-05-07 Shengcai Liao , Yang Hu , Xiangyu Zhu , Stan Z. Li

Radon transform is widely used in physical and life sciences and one of its major applications is the X-ray computed tomography (X-ray CT), which is significant in modern health examination. The Radon inversion or image reconstruction is…

Computer Vision and Pattern Recognition · Computer Science 2018-08-10 Ji He , Jianhua Ma

Attentional mechanisms are order-invariant. Positional encoding is a crucial component to allow attention-based deep model architectures such as Transformer to address sequences or images where the position of information matters. In this…

Machine Learning · Computer Science 2021-11-10 Yang Li , Si Si , Gang Li , Cho-Jui Hsieh , Samy Bengio

This work explores the visual explanation for deep metric learning and its applications. As an important problem for learning representation, metric learning has attracted much attention recently, while the interpretation of such model is…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Sijie Zhu , Taojiannan Yang , Chen Chen

Representation learning approaches typically rely on images of objects captured from a single perspective that are transformed using affine transformations. Additionally, self-supervised learning, a successful paradigm of representation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Omiros Pantazis , Mathew Salvaris

Representation learning (RL) methods learn objects' latent embeddings where information is preserved by distances. Since distances are invariant to certain linear transformations, one may obtain different embeddings while preserving the…

Machine Learning · Computer Science 2021-01-19 Furkan Gürsoy , Mounir Haddad , Cécile Bothorel

A fundamental problem faced by object recognition systems is that objects and their features can appear in different locations, scales and orientations. Current deep learning methods attempt to achieve invariance to local translations via…

Computer Vision and Pattern Recognition · Computer Science 2017-12-12 Dimitrios C. Gklezakos , Rajesh P. N. Rao

The electromagnetic inverse problem has long been a research hotspot. This study aims to reverse radar view angles in synthetic aperture radar (SAR) images given a target model. Nonetheless, the scarcity of SAR data, combined with the…

Machine Learning · Computer Science 2024-01-03 Yanni Wang , Hecheng Jia , Shilei Fu , Huiping Lin , Feng Xu

Binary image based classification and retrieval of documents of an intellectual nature is a very challenging problem. Variations in the binary image generation mechanisms which are subject to the document artisan designer including drawing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Juan Castorena , Manish Bhattarai , Diane Oyen

Perceptive deep reinforcement learning (DRL) has lead to many recent breakthroughs for complex AI systems leveraging image-based input data. Applications of these results range from super-human level video game agents to dexterous,…

Robotics · Computer Science 2023-10-04 Lev Grossman , Brian Plancher

Deep reinforcement learning (DRL) demonstrates great potential in mapless navigation domain. However, such a navigation model is normally restricted to a fixed configuration of the range sensor because its input format is fixed. In this…

Robotics · Computer Science 2021-03-12 Wei Zhang , Ning Liu , Yunfeng Zhang

Deep learning based approaches have been dominating the face recognition field due to the significant performance improvement they have provided on the challenging wild datasets. These approaches have been extensively tested on such…

Computer Vision and Pattern Recognition · Computer Science 2016-06-10 Mostafa Mehdipour Ghazi , Hazim Kemal Ekenel

We present Region Similarity Representation Learning (ReSim), a new approach to self-supervised representation learning for localization-based tasks such as object detection and segmentation. While existing work has largely focused on…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Tete Xiao , Colorado J Reed , Xiaolong Wang , Kurt Keutzer , Trevor Darrell

Although haptic sensing has recently been used for legged robot localization in extreme environments where a camera or LiDAR might fail, the problem of efficiently representing the haptic signatures in a learned prior map is still open.…

Robotics · Computer Science 2023-05-30 Damian Sójka , Michał R. Nowicki , Piotr Skrzypczyński

How do computers and intelligent agents view the world around them? Feature extraction and representation constitutes one the basic building blocks towards answering this question. Traditionally, this has been done with carefully engineered…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Jaime Spencer , Richard Bowden , Simon Hadfield

Metric learning seeks to embed images of objects suchthat class-defined relations are captured by the embeddingspace. However, variability in images is not just due to different depicted object classes, but also depends on other latent…

Computer Vision and Pattern Recognition · Computer Science 2019-09-26 Karsten Roth , Biagio Brattoli , Björn Ommer

As the success of deep models has led to their deployment in all areas of computer vision, it is increasingly important to understand how these representations work and what they are capturing. In this paper, we shed light on deep…

Computer Vision and Pattern Recognition · Computer Science 2018-01-08 Christoph Feichtenhofer , Axel Pinz , Richard P. Wildes , Andrew Zisserman

State-of-the-art reinforcement learning algorithms predominantly learn a policy from either a numerical state vector or images. Both approaches generally do not take structural knowledge of the task into account, which is especially…

Machine Learning · Computer Science 2022-03-14 Marco Oliva , Soubarna Banik , Josip Josifovski , Alois Knoll

An optimal solution to the localization problem is essential for developing autonomous robotic systems. Apart from autonomous vehicles, precision agriculture is one of the elds that can bene t most from these systems. Although LiDAR place…

Robotics · Computer Science 2026-02-02 Judith Vilella-Cantos , Mónica Ballesta , David Valiente , María Flores , Luis Payá