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Purpose: Monocular depth estimation (MDE) is vital for scene understanding in minimally invasive surgery (MIS). However, endoscopic video sequences are often contaminated by smoke, specular reflections, blur, and occlusions, limiting the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Muhammad Asad , Emanuele Colleoni , Pritesh Mehta , Nicolas Toussaint , Ricardo Sanchez-Matilla , Maria Robu , Faisal Bashir , Rahim Mohammadi , Imanol Luengo , Danail Stoyanov

Depth information is the foundation of perception, essential for autonomous driving, robotics, and other source-constrained applications. Promptly obtaining accurate and efficient depth information allows for a rapid response in dynamic…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Xin Zhang , Rabab Abdelfattah , Yuqi Song , Samuel A. Dauchert , Xiaofeng wang

Herein, an atomic norm based method for accurately estimating the location and orientation of a target from millimeter-wave multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing (OFDM) signals is presented. A novel…

Signal Processing · Electrical Eng. & Systems 2021-10-12 Jianxiu Li , Maxime Ferreira Da Costa , Urbashi Mitra

Depth estimation enables a wide variety of 3D applications, such as robotics, autonomous driving, and virtual reality. Despite significant work in this area, it remains open how to enable accurate, low-cost, high-resolution, and large-range…

Sound · Computer Science 2022-07-22 Wei Sun , Lili Qiu

We measure the effective distance to z=0.35, D_V(0.35), from the overall shape of the spherically-averaged two-point correlation function of the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) luminous red galaxy (LRG) sample. We find…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-20 Chia-Hsun Chuang , Yun Wang , Maddumage Don P. Hemantha

A popular method to estimate the positions or directions-of-arrival (DOAs) of multiple sound sources using an array of microphones is based on steered-response power (SRP) beamforming. For a three-dimensional scenario, SRP-based methods…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-21 Klaus Brümann , Simon Doclo

Understanding fundamental limits of the various technologies suggested for future 5G and beyond cellular systems is crucial for developing efficient state-of-the-art designs. A leading technology of major interest is non-orthogonal…

Information Theory · Computer Science 2018-01-16 Benjamin M. Zaidel , Ori Shental , Shlomo Shamai

Traditional monocular Visual-Inertial Odometry (VIO) systems struggle in low-texture environments where sparse visual features are insufficient for accurate pose estimation. To address this, dense Monocular Depth Estimation (MDE) has been…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Arda Alniak , Sinan Kalkan , Mustafa Mert Ankarali , Afsar Saranli , Abdullah Aydin Alatan

Recent advances have markedly improved the cross-scene generalization of relative depth estimation, yet its practical applicability remains limited by the absence of metric scale, local inconsistencies, and low computational efficiency. To…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Yu Ma , Zizhan Guo , Zuyi Xiong , Haoran Zhang , Yi Feng , Hongbo Zhao , Hanli Wang , Rui Fan

This paper presents an efficient numerical sensitivity-estimation method and implementation for continuous-gravitational-wave searches, extending and generalizing an earlier analytic approach by Wette [1]. This estimation framework applies…

General Relativity and Quantum Cosmology · Physics 2018-11-07 Christoph Dreissigacker , Reinhard Prix , Karl Wette

Most geometric approaches to monocular Visual Odometry (VO) provide robust pose estimates, but sparse or semi-dense depth estimates. Off late, deep methods have shown good performance in generating dense depths and VO from monocular images…

Robotics · Computer Science 2018-12-21 Vignesh Prasad , Brojeshwar Bhowmick

Multi-view stereo (MVS) models based on progressive depth hypothesis narrowing have made remarkable advancements. However, existing methods haven't fully utilized the potential that the depth coverage of individual instances is smaller than…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Yinzhe Wang , Yiwen Xiao , Hu Wang , Yiping Xu , Yan Tian

In this work, we introduce MOLA: a Multi-block Orthogonal Long short-term memory Autoencoder paradigm, to conduct accurate, reliable fault detection of industrial processes. To achieve this, MOLA effectively extracts dynamic orthogonal…

Machine Learning · Computer Science 2025-10-31 Fangyuan Ma , Cheng Ji , Jingde Wang , Wei Sun , Xun Tang , Zheyu Jiang

This study proposes an anomaly-detection framework for monitoring exposure-length variations in submarine free-span cables using Distributed Acoustic Sensing (DAS), which is one of the distributed fiber-optic sensing technologies. To…

Signal Processing · Electrical Eng. & Systems 2026-04-29 Sakiko Mishima , Yoshiyuki Yajima , Noriyuki Tonami , Tomoyuki Hino , Shugo Aibe , Junichiro Saikawa , Koji Mizuguchi

The estimation of depth in two-dimensional images has long been a challenging and extensively studied subject in computer vision. Recently, significant progress has been made with the emergence of Deep Learning-based approaches, which have…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Vasileios Arampatzakis , George Pavlidis , Kyriakos Pantoglou , Nikolaos Mitianoudis , Nikos Papamarkos

As processing power has become more available, more human-like artificial intelligences are created to solve image processing tasks that we are inherently good at. As such we propose a model that estimates depth from a monocular image. Our…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Fabian Truetsch , Alfred Schöttl

In dynamically varying optical wireless communication (OWC) links, conventional quadrature amplitude modulation (QAM) in optical orthogonal frequency-division multiplexing (OFDM) requires frequent channel estimation and equalization,…

Optics · Physics 2026-03-19 Tian Cao , Ping Wang , Tianfeng Wu , Kaile Wang , Jian Song

Existing open-vocabulary object detection (OVD) develops methods for testing unseen categories by aligning object region embeddings with corresponding VLM features. A recent study leverages the idea that VLMs implicitly learn compositional…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Hojun Choi , Junsuk Choe , Hyunjung Shim

Recently there has been a growing interest in category-level object pose and size estimation, and prevailing methods commonly rely on single view RGB-D images. However, one disadvantage of such methods is that they require accurate depth…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Jiaqi Yang , Yucong Chen , Xiangting Meng , Chenxin Yan , Min Li , Ran Cheng , Lige Liu , Tao Sun , Laurent Kneip

This paper presents a method for real-time estimation of 2-dimensional direction of arrival (2D-DOA) of one or more sound sources using a nonlinear array of three microphones. 2D-DOA is estimated employing frame-level time difference of…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-10 Anton Kovalyov , Kashyap Patel , Issa Panahi