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Accurate camera pose estimation is a fundamental requirement for numerous applications, such as autonomous driving, mobile robotics, and augmented reality. In this work, we address the problem of estimating the global 6 DoF camera pose from…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Mohammad Altillawi

Visual place recognition techniques based on deep learning, which have imposed themselves as the state-of-the-art in recent years, do not generalize well to environments visually different from the training set. Thus, to achieve top…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Pierre-Yves Lajoie , Giovanni Beltrame

Global localization using onboard perception sensors, such as cameras and LiDARs, is crucial in autonomous driving and robotics applications when GPS signals are unreliable. Most approaches achieve global localization by sequential place…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Sha Lu , Xuecheng Xu , Yuxuan Wu , Haojian Lu , Xieyuanli Chen , Rong Xiong , Yue Wang

Pose refinement is an interesting and practically relevant research direction. Pose refinement can be used to (1) obtain a more accurate pose estimate from an initial prior (e.g., from retrieval), (2) as pre-processing, i.e., to provide a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Gabriele Trivigno , Carlo Masone , Barbara Caputo , Torsten Sattler

Machine learning techniques have shown remarkable accuracy in localization tasks, but their dependency on vast amounts of labeled data, particularly Channel State Information (CSI) and corresponding coordinates, remains a bottleneck.…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Ankan Dash , Jingyi Gu , Guiling Wang , Nirwan Ansari

Target-driven visual navigation is a challenging problem that requires a robot to find the goal using only visual inputs. Many researchers have demonstrated promising results using deep reinforcement learning (deep RL) on various robotic…

Robotics · Computer Science 2021-06-08 Qian Luo , Maks Sorokin , Sehoon Ha

We propose a new method for estimating the relative pose between two images, where we jointly learn keypoint detection, description extraction, matching and robust pose estimation. While our architecture follows the traditional pipeline for…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Antoine Fond , Luca Del Pero , Nikola Sivacki , Marco Paladini

Repetitive action counting (RAC) aims to estimate the number of class-agnostic action occurrences in a video without exemplars. Most current RAC methods rely on a raw frame-to-frame similarity representation for period prediction. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Sujia Wang , Xiangwei Shen , Yansong Tang , Xin Dong , Wenjia Geng , Lei Chen

Discriminative localization is essential for fine-grained image classification task, which devotes to recognizing hundreds of subcategories in the same basic-level category. Reflecting on discriminative regions of objects, key differences…

Computer Vision and Pattern Recognition · Computer Science 2017-12-01 Xiangteng He , Yuxin Peng , Junjie Zhao

Current learning-based robot grasping approaches exploit human-labeled datasets for training the models. However, there are two problems with such a methodology: (a) since each object can be grasped in multiple ways, manually labeling grasp…

Machine Learning · Computer Science 2015-09-24 Lerrel Pinto , Abhinav Gupta

In this paper, we explore the spatial redundancy in video recognition with the aim to improve the computational efficiency. It is observed that the most informative region in each frame of a video is usually a small image patch, which…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Yulin Wang , Zhaoxi Chen , Haojun Jiang , Shiji Song , Yizeng Han , Gao Huang

Loop closing and relocalization are crucial techniques to establish reliable and robust long-term SLAM by addressing pose estimation drift and degeneration. This article begins by formulating loop closing and relocalization within a unified…

Robotics · Computer Science 2023-09-18 Chenghao Shi , Xieyuanli Chen , Junhao Xiao , Bin Dai , Huimin Lu

We tackle the problem of visual localization under changing conditions, such as time of day, weather, and seasons. Recent learned local features based on deep neural networks have shown superior performance over classical hand-crafted local…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Sungyong Baik , Hyo Jin Kim , Tianwei Shen , Eddy Ilg , Kyoung Mu Lee , Chris Sweeney

A Hyperspectral image contains much more number of channels as compared to a RGB image, hence containing more information about entities within the image. The convolutional neural network (CNN) and the Multi-Layer Perceptron (MLP) have been…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Uphar Singh , Kumar Saurabh , Neelaksh Trehan , Ranjana Vyas , O. P. Vyas

Deep learning has shown to be effective for robust and real-time monocular image relocalisation. In particular, PoseNet is a deep convolutional neural network which learns to regress the 6-DOF camera pose from a single image. It learns to…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Alex Kendall , Roberto Cipolla

Learning a 3D representation of a scene has been a challenging problem for decades in computer vision. Recent advances in implicit neural representation from images using neural radiance fields(NeRF) have shown promising results. Some of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Arnab Dey , Andrew I. Comport

Change detection, as a research hotspot in the field of remote sensing, has witnessed continuous development and progress. However, the discrimination of boundary details remains a significant bottleneck due to the complexity of surrounding…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Huan Zhong , Chen Wu , Ziqi Xiao

Recent studies show that vision models pre-trained in generic visual learning tasks with large-scale data can provide useful feature representations for a wide range of visual perception problems. However, few attempts have been made to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-04 Feng Lu , Lijun Zhang , Xiangyuan Lan , Shuting Dong , Yaowei Wang , Chun Yuan

In this paper, a computation efficient regression framework is presented for estimating the 6D pose of rigid objects from a single RGB-D image, which is applicable to handling symmetric objects. This framework is designed in a simple…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Ningkai Mo , Wanshui Gan , Naoto Yokoya , Shifeng Chen

NeRF synthesizes novel views of a scene with unprecedented quality by fitting a neural radiance field to RGB images. However, NeRF requires querying a deep Multi-Layer Perceptron (MLP) millions of times, leading to slow rendering times,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Christian Reiser , Songyou Peng , Yiyi Liao , Andreas Geiger