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Persistent homology of the Rips filtration allows to track topological features of a point cloud over scales, and is a foundational tool of topological data analysis. Unfortunately, the Rips-filtration is exponentially sized, when…

Computational Geometry · Computer Science 2018-07-27 Bernhard Brehm , Hanne Hardering

In the realm of object pose estimation, scenarios involving both dynamic objects and moving cameras are prevalent. However, the scarcity of corresponding real-world datasets significantly hinders the development and evaluation of robust…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Xiangting Meng , Jiaqi Yang , Mingshu Chen , Chenxin Yan , Yujiao Shi , Wenchao Ding , Laurent Kneip

Time series is the most prevalent form of input data for educational prediction tasks. The vast majority of research using time series data focuses on hand-crafted features, designed by experts for predictive performance and…

Machine Learning · Computer Science 2023-03-01 Mohammad Asadi , Vinitra Swamy , Jibril Frej , Julien Vignoud , Mirko Marras , Tanja Käser

Background: Accurate segmentation of microscopic structures such as bio-artificial capsules in microscopy imaging is a prerequisite to the computer-aided understanding of important biomechanical phenomenons. State-of-the-art segmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Arnaud Deleruyelle , Cristian Versari , John Klein

Motion tracking systems based on optical sensors typically often suffer from issues, such as poor lighting conditions, occlusion, limited coverage, and may raise privacy concerns. More recently, radio frequency (RF)-based approaches using…

Computer Vision and Pattern Recognition · Computer Science 2022-01-13 Chong Tang , Wenda Li , Shelly Vishwakarma , Fangzhan Shi , Simon Julier , Kevin Chetty

Real-time path tracing increasingly operates under extremely low sampling budgets, often below one sample per pixel, as rendering complexity, resolution, and frame-rate requirements continue to rise. While super-resolution is widely used in…

Graphics · Computer Science 2026-02-10 Martin Bálint , Corentin Salaün , Hans-Peter Seidel , Karol Myszkowski

Fully autonomous mobile robots have a multitude of potential applications, but guaranteeing robust navigation performance remains an open research problem. For many tasks such as repeated infrastructure inspection, item delivery, or…

Robotics · Computer Science 2021-07-30 Dominic Dall'Osto , Tobias Fischer , Michael Milford

Video annotation is expensive and time consuming. Consequently, datasets for multi-person pose estimation and tracking are less diverse and have more sparse annotations compared to large scale image datasets for human pose estimation. This…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Umer Rafi , Andreas Doering , Bastian Leibe , Juergen Gall

In topological data analysis, a point cloud data P extracted from a metric space is often analyzed by computing the persistence diagram or barcodes of a sequence of Rips complexes built on $P$ indexed by a scale parameter. Unfortunately,…

Computational Geometry · Computer Science 2016-09-27 Tamal K. Dey , Dayu Shi , Yusu Wang

Accurate ground truth estimation in medical screening programs often relies on coalitions of experts and peer second opinions. Algorithms that efficiently aggregate noisy annotations can enhance screening workflows, particularly when data…

Machine Learning · Computer Science 2025-10-07 Tim Bary , Tiffanie Godelaine , Axel Abels , Benoît Macq

Creating fully annotated labels for medical image segmentation is prohibitively time-intensive and costly, emphasizing the necessity for innovative approaches that minimize reliance on detailed annotations. Scribble annotations offer a more…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Xiao Zhang , Shaoxuan Wu , Peilin Zhang , Zhuo Jin , Xiaosong Xiong , Qirong Bu , Jingkun Chen , Jun Feng

Monocular 3D object tracking aims to estimate temporally consistent 3D object poses across video frames, enabling autonomous agents to reason about scene dynamics. However, existing state-of-the-art approaches are fully supervised and rely…

Robotics · Computer Science 2026-03-20 Nikhil Gosala , B. Ravi Kiran , Senthil Yogamani , Abhinav Valada

Advances in multimodal text-image models have enabled effective text-based querying in extensive image collections. While these models show convincing performance for everyday life scenes, querying in highly homogeneous, specialized domains…

Multimedia · Computer Science 2025-06-10 Bastian Jäckl , Vojtěch Kloda , Daniel A. Keim , Jakub Lokoč

Multi-person pose estimation in the wild is challenging. Although state-of-the-art human detectors have demonstrated good performance, small errors in localization and recognition are inevitable. These errors can cause failures for a…

Computer Vision and Pattern Recognition · Computer Science 2018-02-06 Hao-Shu Fang , Shuqin Xie , Yu-Wing Tai , Cewu Lu

Developing a robust object tracker is a challenging task due to factors such as occlusion, motion blur, fast motion, illumination variations, rotation, background clutter, low resolution and deformation across the frames. In the literature,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Sandeep Singh Sengar

Most industry scale recommender systems face critical cold start challenges new items lack interaction history, making it difficult to distribute them in a personalized manner. Standard collaborative filtering models underperform due to…

Information Retrieval · Computer Science 2025-08-12 Amit Jaspal , Kapil Dalwani , Ajantha Ramineni

We consider the problem of estimating the sparse time-varying parameter vectors of a point process model in an online fashion, where the observations and inputs respectively consist of binary and continuous time series. We construct a novel…

Neural and Evolutionary Computing · Computer Science 2016-04-20 Alireza Sheikhattar , Jonathan B. Fritz , Shihab A. Shamma , Behtash Babadi

Random Feature Models (RFMs) have become a powerful tool for approximating multivariate functions and solving partial differential equations efficiently. Sparse Random Feature Expansions (SRFE) improve traditional RFMs by incorporating…

Numerical Analysis · Mathematics 2026-03-20 Ben Adcock , Khiem Can , Xuemeng Wang

Progress in Multiple Object Tracking (MOT) has been historically limited by the size of the available datasets. We present an efficient framework to annotate trajectories and use it to produce a MOT dataset of unprecedented size. In our…

Computer Vision and Pattern Recognition · Computer Science 2017-03-23 Santiago Manen , Michael Gygli , Dengxin Dai , Luc Van Gool

We introduce STEP, a novel framework utilizing Transformer-based discriminative model prediction for simultaneous tracking and estimation of pose across diverse animal species and humans. We are inspired by the fact that the human brain…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Shashikant Verma , Harish Katti , Soumyaratna Debnath , Yamuna Swamy , Shanmuganathan Raman