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Biogeography is the study of the geographical distribution of biological organisms. The mindset of the engineer is that we can learn from nature. Biogeography Based Optimization is a burgeoning nature inspired technique to find the optimal…

Computer Vision and Pattern Recognition · Computer Science 2009-12-08 V. K. Panchal , Parminder Singh , Navdeep Kaur , Harish Kundra

Existing multi-focus image fusion (MFIF) methods often fail to preserve the uncertain transition region and detect small focus areas within large defocused regions accurately. To address this issue, this study proposes a new…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Xilai Li , Xiaosong Li , Haishu Tan , Jinyang Li

Bats use a sophisticated ultrasonic sensing method called echolocation to recognize the environment. Recently, it has been reported that sighted human participants with no prior experience in echolocation can improve their ability to…

Human-Computer Interaction · Computer Science 2023-02-20 Miyoko Tsumaki , Yu Teshima , Takao Tsuchiya , Kaoru Ashihara , Kohta I. Kobayasi , Shizuko Hiryu

Advances in cellular imaging technologies, especially those based on fluorescence in situ hybridization (FISH) now allow detailed visualization of the spatial organization of human or bacterial cells. Quantifying this spatial organization…

Visual localization tackles the challenge of estimating the camera pose from images by using correspondence analysis between query images and a map. This task is computation and data intensive which poses challenges on thorough evaluation…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Martin Humenberger , Yohann Cabon , Nicolas Guerin , Julien Morat , Vincent Leroy , Jérôme Revaud , Philippe Rerole , Noé Pion , Cesar de Souza , Gabriela Csurka

LiDAR odometry can achieve accurate vehicle pose estimation for short driving range or in small-scale environments, but for long driving range or in large-scale environments, the accuracy deteriorates as a result of cumulative estimation…

Robotics · Computer Science 2023-03-16 Lizhou Liao , Chunyun Fu , Binbin Feng , Tian Su

This paper presents an evaluation of a number of probabilistic algorithms for localization of autonomous underwater vehicles (AUVs) using bathymetry data. The algorithms, based on the principles of the Bayes filter, work by fusing…

Robotics · Computer Science 2019-10-14 Jungseok Hong , Michael Fulton , Junaed Sattar

We present a novel local-based face verification system whose components are analogous to those of biological systems. In the proposed system, after global registration and normalization, three eye regions are converted from the spatial to…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 Yossi Zana , Roberto M. Cesar-Jr , Rogerio S. Feris , Matthew Turk

This paper addresses the problem of change detection from a novel perspective of long-term map learning. We are particularly interested in designing an approach that can scale to large maps and that can function under global uncertainty in…

Computer Vision and Pattern Recognition · Computer Science 2017-03-03 Murase Tomoya , Tanaka Kanji

LiDAR relocalization aims to estimate the global 6-DoF pose of a sensor in the environment. However, existing regression-based approaches are prone to dynamic or ambiguous scenarios, as they either solely rely on single-frame inference or…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Minghang Zhu , Zhijing Wang , Yuxin Guo , Wen Li , Sheng Ao , Cheng Wang

Many applications require positioning. Time of Flight (ToF) methods calculate distances by measuring the propagation time of signals. We present a novel ToF localization method. Our new approach works infrastructure-less, without…

Networking and Internet Architecture · Computer Science 2020-01-14 Maximilian von Tschirschnitz , Marcel Wagner , Marc-Oliver Pahl , Georg Carle

Our work aims at using quantitative imaging tools to complement the limitation of noise encountered by high resolution fluorescence microscopy methods. Several cycles of fluorophore activation, imaging and deactivation produce a sequence of…

Quantitative Methods · Quantitative Biology 2012-02-03 Juliane Liepe , Federico Felizzi , Agata Pernus , Maria Hanulova

Localizing and tracking of marine mammals can reveal key insights into behaviors underwater that otherwise would remain unexplored. A promising nonintrusive approach to obtaining location information of marine mammals is based on recordings…

Signal Processing · Electrical Eng. & Systems 2023-05-10 Junsu Jang , Florian Meyer , Eric R. Snyder , Sean M. Wiggins , Simone Baumann-Pickering , John A. Hildebrand

In this letter, we investigate the fundamental limits of localization in fluid antenna systems (FAS) utilizing a Fisher-information-theoretic framework. We develop a unified model to quantify the localization information extractable from…

Signal Processing · Electrical Eng. & Systems 2025-12-17 Abdelhamid Salem , Kai-Kit Wong , Hyundong Shin , Yangyang Zhang

Accurate and efficient localization with conveniently-established map is the fundamental requirement for mobile robot operation in warehouse environments. An accurate AprilTag map can be conveniently established with the help of LiDAR-based…

Robotics · Computer Science 2025-08-15 Susu Fang , Yanhao Li , Hao Li

Federated learning (FL) has gained a lot of attention in recent years for building privacy-preserving collaborative learning systems. However, FL algorithms for constrained machine learning problems are still limited, particularly when the…

Machine Learning · Computer Science 2024-08-20 Ali Dadras , Sourasekhar Banerjee , Karthik Prakhya , Alp Yurtsever

We propose a method which, given a sequence of stereo foggy images, estimates the parameters of a fog model and updates them dynamically. In contrast with previous approaches, which estimate the parameters sequentially and thus are prone to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Yining Ding , João F. C. Mota , Andrew M. Wallace , Sen Wang

Feature subset selection (FSS) using a wrapper approach is essentially a combinatorial optimization problem having two objective functions namely cardinality of the selected-feature-subset, which should be minimized and the corresponding…

Neural and Evolutionary Computing · Computer Science 2022-02-09 Yelleti Vivek , Vadlamani Ravi , P. Radhakrishna

Place recognition is a challenging but crucial task in robotics. Current description-based methods may be limited by representation capabilities, while pairwise similarity-based methods require exhaustive searches, which is time-consuming.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Chencan Fu , Lin Li , Jianbiao Mei , Yukai Ma , Linpeng Peng , Xiangrui Zhao , Yong Liu

Estimating the actual head orientation from 2D images, with regard to its three degrees of freedom, is a well known problem that is highly significant for a large number of applications involving head pose knowledge. Consequently, this…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Carmen Bisogni , Michele Nappi , Chiara Pero , Stefano Ricciardi
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