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We propose a method to build in real-time animated 3D head models using a consumer-grade RGB-D camera. Our proposed method is the first one to provide simultaneously comprehensive facial motion tracking and a detailed 3D model of the user's…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Diego Thomas

Personal devices (e.g. laptops, tablets, and mobile phones) are conventional in daily life and have the ability to store users' private data. The security problems related to these appliances have become a primary concern for both users and…

Cryptography and Security · Computer Science 2017-03-30 Le Ngu Nguyen , Stephan Sigg

Person re-identification across different surveillance cameras with disjoint fields of view has become one of the most interesting and challenging subjects in the area of intelligent video surveillance. Although several methods have been…

Computer Vision and Pattern Recognition · Computer Science 2015-11-10 Mohammad Ali Saghafi , Aini Hussain , Halimah Badioze Zaman , Mohamad Hanif Md Saad

The overwhelming popularity of social media has resulted in bulk amounts of personal photos being uploaded to the internet every day. Since these photos are taken in unconstrained settings, recognizing the identities of people among the…

Computer Vision and Pattern Recognition · Computer Science 2018-09-27 Sina Mokhtarzadeh Azar , Sajjad Azami , Mina Ghadimi Atigh , Mohammad Javadi , Ahmad Nickabadi

We present a solution to egocentric 3D body pose estimation from monocular images captured from downward looking fish-eye cameras installed on the rim of a head mounted VR device. This unusual viewpoint leads to images with unique visual…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Denis Tome , Thiemo Alldieck , Patrick Peluse , Gerard Pons-Moll , Lourdes Agapito , Hernan Badino , Fernando De la Torre

Given a user wearing a low frame rate wearable camera during a day, this work aims to automatically detect the moments when the user gets engaged into a social interaction solely by reviewing the automatically captured photos by the worn…

Computer Vision and Pattern Recognition · Computer Science 2017-05-15 Maedeh Aghaei , Mariella Dimiccoli , Petia Radeva

Finding obstacle-free paths in unknown environments is a big navigation issue for visually impaired people and autonomous robots. Previous works focus on obstacle avoidance, however they do not have a general view of the environment they…

We propose a novel method for spatiotemporal multi-camera calibration using freely moving people in multiview videos. Since calibrating multiple cameras and finding matches across their views are inherently interdependent, performing both…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Sang-Eun Lee , Ko Nishino , Shohei Nobuhara

Due to the pervasiveness of image capturing devices in every-day life, images of individuals are routinely captured. Although this has enabled many benefits, it also infringes on personal privacy. A promising direction in research on…

Cryptography and Security · Computer Science 2021-02-23 William Croft , Jörg-Rüdiger Sack , Wei Shi

In this paper, we address the inverse problem of reconstructing a scene as well as the camera motion from the image sequence taken by an omni-directional camera. Our structure from motion results give sharp conditions under which the…

Computer Vision and Pattern Recognition · Computer Science 2007-08-21 Oliver Knill , Jose Ramirez-Herran

Emotion recognition,as a step toward mind reading,seeks to infer internal states from external cues.Most existing methods rely on explicit signals-such as facial expressions,speech,or gestures-that reflect only bodily responses and overlook…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Mengke Song , Yuge Xie , Qi Cui , Luming Li , Xinyu Liu , Guotao Wang , Chenglizhao Chen , Shanchen Pang

Medical images taken with mobile phones by patients, i.e. medical selfies, allow screening, monitoring and diagnosis of skin lesions. While mobile teledermatology can provide good diagnostic accuracy for skin tumours, there is little…

Human-Computer Interaction · Computer Science 2020-10-27 Daniel Diethei , Ashley Colley , Matilda Kalving , Tarja Salmela , Jonna Häkkilä , Johannes Schöning

In a world of pervasive cameras, public spaces are often captured from multiple perspectives by cameras of different types, both fixed and mobile. An important problem is to organize these heterogeneous collections of videos by finding…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Mingze Xu , Chenyou Fan , Yuchen Wang , Michael S Ryoo , David J Crandall

In this work we propose an approach for estimating 3D human poses of multiple people from a set of calibrated cameras. Estimating 3D human poses from multiple views has several compelling properties: human poses are estimated within a…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Julian Tanke , Juergen Gall

Self-supervised detection and segmentation of foreground objects aims for accuracy without annotated training data. However, existing approaches predominantly rely on restrictive assumptions on appearance and motion. For scenes with dynamic…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Isinsu Katircioglu , Helge Rhodin , Jörg Spörri , Mathieu Salzmann , Pascal Fua

The widespread deployment of surveillance cameras for facial recognition gives rise to many privacy concerns. This study proposes a privacy-friendly alternative to large scale facial recognition. While there are multiple techniques to…

Computer Vision and Pattern Recognition · Computer Science 2021-01-28 Mattijs Baert , Sam Leroux , Pieter Simoens

Age estimation from images can be used in many practical scenes. Most of the previous works targeted on the estimation from images in which only one face exists. Also, most of the open datasets for age estimation contain images like that.…

Computer Vision and Pattern Recognition · Computer Science 2021-02-22 Masakazu Yoshimura , Satoshi Ogata

We introduce a framework for navigating through cluttered environments by connecting multiple cameras together while simultaneously preserving privacy. Occlusions and obstacles in large environments are often challenging situations for…

Machine Learning · Computer Science 2022-12-05 Hui Lu , Mia Chiquier , Carl Vondrick

Current human pose estimation systems focus on retrieving an accurate 3D global estimate of a single person. Therefore, this paper presents one of the first 3D multi-person human pose estimation systems that is able to work in real-time and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Pawel Knap , Peter Hardy , Alberto Tamajo , Hwasup Lim , Hansung Kim

The integration of multi-view imaging and pose estimation represents a significant advance in computer vision applications, offering new possibilities for understanding human movement and interactions. This work presents a new algorithm…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Daniel Bermuth , Alexander Poeppel , Wolfgang Reif