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Retrieving the missing dimension information in acoustic images from 2D forward-looking sonar is a well-known problem in the field of underwater robotics. There are works attempting to retrieve 3D information from a single image which…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Yusheng Wang , Yonghoon Ji , Hiroshi Tsuchiya , Hajime Asama , Atsushi Yamashita

A key challenge in future 6G Integrated Sensing and Communications (ISAC) networks is to define the angular operations of transmitter and receiver, i.e., the sampling task of the angular domains, to acquire information about the…

Signal Processing · Electrical Eng. & Systems 2025-04-29 Alexander Felix , Silvio Mandelli , Marcus Henninger , Stephan ten Brink

The focus of this paper is on the development of a sparse and optimal acquisition (SOA) design for diffusion MRI multiple-shell acquisition and beyond. A novel optimality criterion is proposed for sparse multiple-shell acquisition and quasi…

Medical Physics · Physics 2012-12-06 Cheng Guan Koay , Evren Özarslan , Kevin M Johnson , M. Elizabeth Meyerand

3D scene reconstruction from 2D images has been a long-standing task. Instead of estimating per-frame depth maps and fusing them in 3D, recent research leverages the neural implicit surface as a unified representation for 3D reconstruction.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Xinyi Yu , Liqin Lu , Jintao Rong , Guangkai Xu , Linlin Ou

We present a novel design of 3D spectrometer that can retrieve 3D spectral profile in a single measurement. The 3D spectrometer design is built upon the concept of compressed sensing to make it possible to retrieve 3D information from 2D…

Instrumentation and Detectors · Physics 2018-02-05 Muhammad Firmansyah Kasim , Peter Norreys

Reducing acquisition time is of fundamental importance in various imaging modalities. The concept of variable density sampling provides a nice framework to achieve this. It was justified recently from a theoretical point of view in the…

Information Theory · Computer Science 2014-01-29 Claire Boyer , Pierre Weiss , Jérémie Bigot

3D image processing is an important problem in computer vision and pattern recognition fields. Compared with 2D image processing, its computation difficulty and cost are much higher due to the extra dimension. To fundamentally address this…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Yongyu Wang

In the context of 3D mapping, larger and larger point clouds are acquired with LIDAR sensors. The Iterative Closest Point (ICP) algorithm is used to align these point clouds. However, its complexity is directly dependent of the number of…

Robotics · Computer Science 2019-01-29 Mathieu Labussiere , Johann Laconte , François Pomerleau

In this article, we propose a new dimensionality-independent and gradient-free sampler, called Geometric Optics Approximation Sampling, which is based on the reflector antenna system. The core idea is to construct a reflecting surface that…

Numerical Analysis · Mathematics 2024-11-18 Zejun Sun , Guang-Hui Zheng

This paper is a survey work for a bigger project for designing a Visual SLAM robot to generate 3D dense map of an unknown unstructured environment. A lot of factors have to be considered while designing a SLAM robot. Sensing method of the…

Robotics · Computer Science 2013-03-18 Adheen Ajay , D. Venkataraman

Near Infrared (NIR) spectroscopy is widely used in industrial quality control and automation to test the purity and grade of items. In this research, we propose a novel sensorized end effector and acquisition strategy to capture spectral…

Robotic surgical subtask automation has the potential to reduce the per-patient workload of human surgeons. There are a variety of surgical subtasks that require geometric information of subsurface anatomy, such as the location of tumors,…

Robotics · Computer Science 2023-09-20 Brian Y. Cho , Alan Kuntz

Large kernel convolutions offer a scalable alternative to vision transformers for high-resolution 3D volumetric analysis, yet naively increasing kernel size often leads to optimization instability. Motivated by the spatial bias inherent in…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Ho Hin Lee , Quan Liu , Shunxing Bao , Yuankai Huo , Bennett A. Landman

Airborne acquisition and on-road mobile mapping provide complementary 3D information of an urban landscape: the former acquires roof structures, ground, and vegetation at a large scale, but lacks the facade and street-side details, while…

Computer Vision and Pattern Recognition · Computer Science 2016-09-07 András Bódis-Szomorú , Hayko Riemenschneider , Luc Van Gool

Electron tomography is a widely used technique for 3D structural analysis of nanomaterials, but it can cause damage to samples due to high electron doses and long exposure times. To minimize such damage, researchers often reduce beam…

Image and Video Processing · Electrical Eng. & Systems 2023-04-05 Timothy M. Craig , Ajinkya A Kadu , Kees Joost Batenburg , Sara Bals

Precise 3D measurements of rigid surfaces are desired in many fields of application like quality control or surgery. Often, views from all around the object have to be acquired for a full 3D description of the object surface. We present a…

Optics · Physics 2014-01-10 Oliver Arold , Svenja Ettl , Florian Willomitzer , Gerd Häusler

The selection of maskers and playback gain levels in a soundscape augmentation system is crucial to its effectiveness in improving the overall acoustic comfort of a given environment. Traditionally, the selection of appropriate maskers and…

Audio and Speech Processing · Electrical Eng. & Systems 2022-08-31 Karn N. Watcharasupat , Kenneth Ooi , Bhan Lam , Trevor Wong , Zhen-Ting Ong , Woon-Seng Gan

3D single-photon LiDAR imaging plays an important role in numerous applications. However, long acquisition times and significant data volumes present a challenge to LiDAR imaging. This paper proposes a task-optimized adaptive sampling…

Image and Video Processing · Electrical Eng. & Systems 2021-09-07 Mohamed Amir Alaa Belmekki , Rachael Tobin , Gerald S. Buller , Stephen McLaughlin , Abderrahim Halimi

Coverage is one of the fundamental issues in wireless multimedia sensor networks (WMSNs). It reflects the ability of WMSNs to detect the fields. Motivated by the existing-enhancing algorithm of traditional 2D WMSNs, a new 3D WMSNs sensing…

Networking and Internet Architecture · Computer Science 2015-09-17 Shasha Xu , Weijie Lyu , Huilin Li

Bayesian Optimization with multi-objective acquisition functions such as q-Expected Hypervolume Improvement (qEHVI) requires efficient candidate optimization to maximize acquisition function values. Traditional approaches rely on continuous…

Machine Learning · Computer Science 2026-01-13 Sk Md Ahnaf Akif Alvi , Raymundo Arróyave , Douglas Allaire
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