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Compressive sensing (CS) reconstructs images from sub-Nyquist measurements by solving a sparsity-regularized inverse problem. Traditional CS solvers use iterative optimizers with hand crafted sparsifiers, while early data-driven methods…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Pamuditha Somarathne , Tharindu Wickremasinghe , Amashi Niwarthana , A. Thieshanthan , Chamira U. S. Edussooriya , Dushan N. Wadduwage

Integrated sensing and communication (ISAC) is a key technology for enabling a wide range of applications in future wireless systems. However, the sensing performance is often degraded by model mismatches caused by geometric errors (e.g.,…

Signal Processing · Electrical Eng. & Systems 2026-02-03 Hui Chen , Mengting Li , Alireza Pourafzal , Huiping Huang , Yu Ge , Sigurd Sandor Petersen , Ming Shen , George C. Alexandropoulos , Henk Wymeersch

Accurate camera pose estimation is a fundamental requirement for numerous applications, such as autonomous driving, mobile robotics, and augmented reality. In this work, we address the problem of estimating the global 6 DoF camera pose from…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Mohammad Altillawi

In this paper, we tackle the task of establishing dense visual correspondences between images containing objects of the same category. This is a challenging task due to large intra-class variations and a lack of dense pixel level…

Computer Vision and Pattern Recognition · Computer Science 2020-03-27 Shuda Li , Kai Han , Theo W. Costain , Henry Howard-Jenkins , Victor Prisacariu

The alignment of serial-section electron microscopy (ssEM) images is critical for efforts in neuroscience that seek to reconstruct neuronal circuits. However, each ssEM plane contains densely packed structures that vary from one section to…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Inwan Yoo , David G. C. Hildebrand , Willie F. Tobin , Wei-Chung Allen Lee , Won-Ki Jeong

Camera localization aims to estimate 6 DoF camera poses from RGB images. Traditional methods detect and match interest points between a query image and a pre-built 3D model. Recent learning-based approaches encode scene structures into a…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Shitao Tang , Chengzhou Tang , Rui Huang , Siyu Zhu , Ping Tan

Since the introduction of modern deep learning methods for object pose estimation, test accuracy and efficiency has increased significantly. For training, however, large amounts of annotated training data are required for good performance.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Frederik Hagelskjaer , Anders Glent Buch

Practical real world datasets with plentiful categories introduce new challenges for unsupervised domain adaptation like small inter-class discriminability, that existing approaches relying on domain invariance alone cannot handle…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Tarun Kalluri , Astuti Sharma , Manmohan Chandraker

Sparse Mixture of Experts (SMoE) enables efficient training of large language models by routing input tokens to a select number of experts. However, training SMoE remains challenging due to the issue of representation collapse. Recent…

Computation and Language · Computer Science 2025-04-01 Giang Do , Hung Le , Truyen Tran

The attention mechanism provides a sequential prediction framework for learning spatial models with enhanced implicit temporal consistency. In this work, we show a systematic design (from 2D to 3D) for how conventional networks and other…

Computer Vision and Pattern Recognition · Computer Science 2021-03-05 Ruixu Liu , Ju Shen , He Wang , Chen Chen , Sen-ching Cheung , Vijayan K. Asari

Collaborative Filtering (CF) remains the cornerstone of modern recommender systems, with dense embedding--based methods dominating current practice. However, these approaches suffer from a critical limitation: our theoretical analysis…

Information Retrieval · Computer Science 2026-01-15 Hanze Guo , Jianxun Lian , Xiao Zhou

Image clustering aims to partition unlabeled image datasets into distinct groups. A core aspect of this task is constructing and leveraging prior knowledge to guide the clustering process. Recent approaches introduce semantic descriptions…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Feijiang Li , Zhenxiong Li , Jieting Wang , Zizheng Jiu , Saixiong Liu , Liang Du

The Steered Mixture of Experts regression framework has demonstrated strong performance in image reconstruction, compression, denoising, and super-resolution. However, its high computational cost limits practical applications. This work…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Yi-Hsin Li , Mårten Sjöström , Sebastian Knorr , Thomas Sikora

Fingerprinting-based positioning, one of the promising indoor positioning solutions, has been broadly explored owing to the pervasiveness of sensor-rich mobile devices, the prosperity of opportunistically measurable location-relevant…

Machine Learning · Statistics 2019-12-20 Caifa Zhou

Mixture of Experts (MoE) models have become central to scaling large language models, yet their mechanistic differences from dense networks remain poorly understood. Previous work has explored how dense models use \textit{superposition} to…

Machine Learning · Computer Science 2025-12-29 Marmik Chaudhari , Jeremi Nuer , Rome Thorstenson

Vehicle relocation is the problem in which a mobile robot has to estimate the self-position with respect to an a priori map of landmarks using the perception and the motion measurements without using any knowledge of the initial…

Robotics · Computer Science 2015-06-26 Kanji Tanaka , Eiji Kondo

Despite the exceptional reasoning capabilities of Multimodal Large Language Models (MLLMs), their adaptation into universal embedding models is significantly impeded by task conflict. To address this, we propose TSEmbed, a universal…

Computation and Language · Computer Science 2026-03-06 Yebo Wu , Feng Liu , Ziwei Xie , Zhiyuan Liu , Changwang Zhang , Jun Wang , Li Li

This paper presents a semantic planar SLAM system that improves pose estimation and mapping using cues from an instance planar segmentation network. While the mainstream approaches are using RGB-D sensors, employing a monocular camera with…

Computer Vision and Pattern Recognition · Computer Science 2022-06-23 Fangwen Shu , Yaxu Xie , Jason Rambach , Alain Pagani , Didier Stricker

Sparse-view computed tomography (CT) reconstruction is fundamentally challenging due to undersampling, leading to an ill-posed inverse problem. Traditional iterative methods incorporate handcrafted or learned priors to regularize the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Leon Suarez-Rodriguez , Roman Jacome , Romario Gualdron-Hurtado , Ana Mantilla-Dulcey , Henry Arguello

Camera relocalization is pivotal in computer vision, with applications in AR, drones, robotics, and autonomous driving. It estimates 3D camera position and orientation (6-DoF) from images. Unlike traditional methods like SLAM, recent…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Zhendong Xiao , Changhao Chen , Shan Yang , Wu Wei