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Visually impaired people usually find it hard to travel independently in many public places such as airports and shopping malls due to the problems of obstacle avoidance and guidance to the desired location. Therefore, in the highly dynamic…

Robotics · Computer Science 2022-12-14 Yanbaihui Liu

Recent work has shown impressive localization performance using only images of ground textures taken with a downward facing monocular camera. This provides a reliable navigation method that is robust to feature sparse environments and…

Robotics · Computer Science 2023-03-13 Kyle M. Hart , Brendan Englot , Ryan P. O'Shea , John D. Kelly , David Martinez

Polarization is a degree of freedom of light carrying important information that is usually absent in intensity and spectral content. Imaging polarimetry is the process of determining the polarization state of light, either partially or…

Optics · Physics 2018-03-12 Ehsan Arbabi , Seyedeh Mahsa Kamali , Amir Arbabi , Andrei Faraon

Recently, biped robot walking technology has been significantly developed, mainly in the context of a bland walking scheme. To emulate human walking, robots need to step on the positions they see in unknown spaces accurately. In this paper,…

Robotics · Computer Science 2025-10-15 Bingquan Li , Ning Wang , Tianwei Zhang , Zhicheng He , Yucong Wu

In this paper we present a simple novel approach to tackle the challenges of scaling and rotation of face images in face recognition. The proposed approach registers the training and testing visual face images by log-polar transformation,…

Computer Vision and Pattern Recognition · Computer Science 2010-07-06 Mrinal Kanti Bhowmik , Debotosh Bhattacharjee , Mita Nasipuri , Mahantapas Kundu , Dipak Kumar Basu

We often encounter limited FOV situations due to various factors such as sensor fusion or sensor mount in real-world robot navigation. However, the limited FOV interrupts the generation of descriptions and impacts place recognition…

Robotics · Computer Science 2024-10-03 Hogyun Kim , Jiwon Choi , Taehu Sim , Giseop Kim , Younggun Cho

Visual localization is one of the most important components for robotics and autonomous driving. Recently, inspiring results have been shown with CNN-based methods which provide a direct formulation to end-to-end regress 6-DoF absolute…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Mi Tian , Qiong Nie , Hao Shen , Xiahua Xia

Accurate camera localization is an essential part of tracking systems. However, localization results are greatly affected by illumination. Including data collected under various lighting conditions can improve the robustness of the…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Sota Shoman , Tomohiro Mashita , Alexander Plopski , Photchara Ratsamee , Yuki Uranishi , Haruo Takemura

Since specular reflection often exists in the real captured images and causes deviation between the recorded color and intrinsic color, specular reflection separation can bring advantages to multiple applications that require consistent…

Computer Vision and Pattern Recognition · Computer Science 2022-01-26 Sijia Wen , Yingqiang Zheng , Feng Lu

This paper studies the problem of 3D volumetric reconstruction from two views of a scene with an unknown camera. While seemingly easy for humans, this problem poses many challenges for computers since it requires simultaneously…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Shengyi Qian , Linyi Jin , David F. Fouhey

Many real-world 3D reconstruction applications demand photorealism and metric accuracy across unbounded, complex scenes with challenging lighting and imperfect captures that current Neural Radiance Field (NeRF) pipelines only partly…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Vladislav Polianskii , Elijs Dima , Isabel Salmerón Marazuela , Gergő László Nagy , Sigurdur Sverrisson , Volodya Grancharov

Visual-based recognition, e.g., image classification, object detection, etc., is a long-standing challenge in computer vision and robotics communities. Concerning the roboticists, since the knowledge of the environment is a prerequisite for…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Antonios Gasteratos , Konstantinos A. Tsintotas , Tobias Fischer , Yiannis Aloimonos , Michael Milford

Visual localization for planar moving robot is important to various indoor service robotic applications. To handle the textureless areas and frequent human activities in indoor environments, a novel robust visual localization algorithm…

Robotics · Computer Science 2020-11-03 Yanmei Jiao , Lilu Liu , Bo Fu , Xiaqing Ding , Minhang Wang , Yue Wang , Rong Xiong

We propose and experimentally demonstrate a polarization--based steganographic scheme using partially polarized vector beams. In our approach, the spatially dependent polarization structure of the optical field serves as the carrier through…

Construction robots operate in unstructured construction sites, where effective visual perception is crucial for ensuring safe and seamless operations. However, construction robots often handle large elements and perform tasks across…

Robotics · Computer Science 2024-12-17 Jia Xu , Manish Dixit , Xi Wang

The emerging ``Floor plan from human trails (PfH)" technique has great potential for improving indoor robot navigation by predicting the traversability of occluded floors. This study presents an innovative approach that replaces…

Robotics · Computer Science 2023-10-03 Jonathan Tay Yu Liang , Kanji Tanaka

Non-line-of-sight (NLOS) imaging of objects not visible to either the camera or illumination source is a challenging task with vital applications including surveillance and robotics. Recent NLOS reconstruction advances have been achieved…

Image and Video Processing · Electrical Eng. & Systems 2019-07-30 Sreenithy Chandran , Suren Jayasuriya

The place recognition problem comprises two distinct subproblems; recognizing a specific location in the world ("specific" or "ordinary" place recognition) and recognizing the type of place (place categorization). Both are important…

Robotics · Computer Science 2018-04-17 Sourav Garg , Adam Jacobson , Swagat Kumar , Michael Milford

Powered wheelchair users encounter barriers to their mobility everyday. Entering a building with non barrier-free areas can massively impact the user mobility related activities. There are a few commercial devices and some experimental that…

Human-Computer Interaction · Computer Science 2018-06-13 Sherif Abdulatif , Bernhard Kleiner , Fady Aziz , Christopher Riehs , Rory Cooper , Urs Schneider

Inversion techniques (ITs) allow us to infer the magnetic, dynamic, and thermal properties of the solar atmosphere from polarization line profiles. In recent years, major progress has come from the application of ITs to state-of-the-art…

Astrophysics · Physics 2007-05-23 L. R. Bellot Rubio