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We define an evolving in-time Bayesian neural network called a Hidden Markov Neural Network, which addresses the crucial challenge in time-series forecasting and continual learning: striking a balance between adapting to new data and…

Machine Learning · Statistics 2025-01-17 Lorenzo Rimella , Nick Whiteley

In this work, we propose HE-VPR, a visual place recognition (VPR) framework that incorporates height estimation. Our system decouples height inference from place recognition, allowing both modules to share a frozen DINOv2 backbone. Two…

Robotics · Computer Science 2026-03-05 Mengfan He , Xingyu Shao , Chunyu Li , Chao Chen , Liangzheng Sun , Ziyang Meng , Yuanqing Wu

Visual place recognition tasks often encounter significant challenges in landmark detection due to the presence of irrelevant objects such as humans, cars, and trees, despite the remarkable progress achieved by previous models, especially…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Mohammad Javad Rajabi , Morteza Mirzai , Ahmad Nickabadi

In this paper, we propose an efficient algorithm for robust place recognition and loop detection using camera information only. Our pipeline purely relies on spatial localization and semantic information of road markings. The creation of…

Computer Vision and Pattern Recognition · Computer Science 2017-10-23 Oleksandr Bailo , Francois Rameau , In So Kweon

Contemporary state-of-the-art video object segmentation (VOS) models compare incoming unannotated images to a history of image-mask relations via affinity or cross-attention to predict object masks. We refer to the internal memory state of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Clayton Bromley , Alexander Moore , Amar Saini , Douglas Poland , Carmen Carrano

Visual localization is the task of estimating the camera pose of an image relative to a scene representation. In practice, visual localization systems are often cloud-based. Naturally, this raises privacy concerns in terms of revealing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Vojtech Panek , Patrik Beliansky , Zuzana Kukelova , Torsten Sattler

Visual Place Recognition is a task that aims to predict the coordinates of an image (called query) based solely on visual clues. Most commonly, a retrieval approach is adopted, where the query is matched to the most similar images from a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Giovanni Barbarani , Mohamad Mostafa , Hajali Bayramov , Gabriele Trivigno , Gabriele Berton , Carlo Masone , Barbara Caputo

Visual place recognition is challenging because there are so many factors that can cause the appearance of a place to change, from day-night cycles to seasonal change to atmospheric conditions. In recent years a large range of approaches…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Sourav Garg , Ben Harwood , Gaurangi Anand , Michael Milford

Existing solutions to visual simultaneous localization and mapping (V-SLAM) assume that errors in feature extraction and matching are independent and identically distributed (i.i.d), but this assumption is known to not be true -- features…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Sadegh Rabiee , Joydeep Biswas

Visual place recognition is the task of recognizing a place depicted in an image based on its pure visual appearance without metadata. In visual place recognition, the challenges lie upon not only the changes in lighting conditions, camera…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Duc Canh Le , Chan Hyun Youn

Multilevel strategies are an integral part of many image registration algorithms. These strategies are very well-known for avoiding undesirable local minima, providing an outstanding initial guess, and reducing overall computation time.…

Signal Processing · Electrical Eng. & Systems 2020-01-22 Hari Om Aggrawal , Jan Modersitzki

Deep robot vision models are widely used for recognizing objects from camera images, but shows poor performance when detecting objects at untrained positions. Although such problem can be alleviated by training with large datasets, the…

Robotics · Computer Science 2022-10-26 Hyogo Hiruma , Hiroki Mori , Hiroshi Ito , Tetsuya Ogata

The performance of image generation has been significantly improved in recent years. However, the study of image screening is rare and its performance with Multimodal Large Language Models (MLLMs) is unsatisfactory due to the lack of data…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Zhiyuan Hu , Zheng Sun , Yi Wei , Long Yu

Robust online multi-person tracking requires the correct associations of online detection responses with existing trajectories. We address this problem by developing a novel appearance modeling approach to provide accurate appearance…

Computer Vision and Pattern Recognition · Computer Science 2017-03-14 Min Yang , Yunde Jia

Hidden Markov models with observations in a Euclidean space play an important role in signal and image processing. Previous work extending to models where observations lie in Riemannian manifolds based on the Baum-Welch algorithm suffered…

Machine Learning · Computer Science 2022-07-05 Quinten Tupker , Salem Said , Cyrus Mostajeran

Vehicle Re-identification is attracting more and more attention in recent years. One of the most challenging problems is to learn an efficient representation for a vehicle from its multi-viewpoint images. Existing methods tend to derive…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Saghir Ahmed Saghir Alfasly , Yongjian Hu , Tiancai Liang , Xiaofeng Jin , Qingli Zhao , Beibei Liu

Transformers have recently been popular for learning and inference in the spatial-temporal domain. However, their performance relies on storing and applying attention to the feature tensor of each frame in video. Hence, their space and time…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Hung Nguyen , Chanho Kim , Fuxin Li

Generative models with discrete latent representations have recently demonstrated an impressive ability to learn complex high-dimensional data distributions. However, their performance relies on a long sequence of tokens per instance and a…

Machine Learning · Computer Science 2024-03-26 David D. Nguyen , David Leibowitz , Surya Nepal , Salil S. Kanhere

Place recognition is a challenging problem in mobile robotics, especially in unstructured environments or under viewpoint and illumination changes. Most LiDAR-based methods rely on geometrical features to overcome such challenges, as…

Robotics · Computer Science 2018-12-03 Jiadong Guo , Paulo V. K. Borges , Chanoh Park , Abel Gawel

Robust visual place recognition (VPR) requires scene representations that are invariant to various environmental challenges such as seasonal changes and variations due to ambient lighting conditions during day and night. Moreover, a…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Unnat Jain , Vinay P. Namboodiri , Gaurav Pandey
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