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Gaze detection and head orientation are an important part of many advanced human-machine interaction applications. Many systems have been proposed for gaze detection. Typically, they require some form of user cooperation and calibration.…

Computer Vision and Pattern Recognition · Computer Science 2016-08-31 J. Y. Kaminski , M. Teicher , D. Knaan , A. Shavit

Numerous applications have been developed to assist visually impaired individuals that employ a machine learning unit to process visual input. However, a critical challenge with these applications is the sub-optimal quality of images…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Seyedalireza Khoshsirat , Chandra Kambhamettu

One of the intuitive instruction methods in robot navigation is a pointing gesture. In this study, we propose a method using an omnidirectional camera to eliminate the user/object position constraint and the left/right constraint of the…

Human-Computer Interaction · Computer Science 2023-08-03 Nanami Kotani , Asako Kanezaki

Dynamic facial expression recognition has many useful applications in social networks, multimedia content analysis, security systems and others. This challenging process must be done under recurrent problems of image illumination and low…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Ali Raza Shahid , Sheheryar Khan , Hong Yan

We propose a novel real-time direct monocular visual odometry for omnidirectional cameras. Our method extends direct sparse odometry (DSO) by using the unified omnidirectional model as a projection function, which can be applied to fisheye…

Computer Vision and Pattern Recognition · Computer Science 2020-06-18 Hidenobu Matsuki , Lukas von Stumberg , Vladyslav Usenko , Jörg Stückler , Daniel Cremers

We propose a method for guiding a photographer to rotate her/his smartphone camera to obtain an image that overlaps with another image of the same scene. The other image is taken by another photographer from a different viewpoint. Our…

Computer Vision and Pattern Recognition · Computer Science 2015-05-20 Lior Talker , Yael Moses , Ilan Shimshoni

The wide adoption of wearable smart devices with onboard cameras greatly increases people's concern on privacy infringement. Here we explore the possibility of easing persons from photos captured by smart devices according to their privacy…

Cryptography and Security · Computer Science 2014-10-27 Lan Zhang , Kebin Liu , Xiang-Yang Li , Puchun Feng , Cihang Liu , Yunhao Liu

Person recognition methods that use multiple body regions have shown significant improvements over traditional face-based recognition. One of the primary challenges in full-body person recognition is the extreme variation in pose and view…

Computer Vision and Pattern Recognition · Computer Science 2017-05-30 Vijay Kumar , Anoop Namboodiri , Manohar Paluri , C V Jawahar

Human motion capture either requires multi-camera systems or is unreliable when using single-view input due to depth ambiguities. Meanwhile, mirrors are readily available in urban environments and form an affordable alternative by recording…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 Daniel Ajisafe , James Tang , Shih-Yang Su , Bastian Wandt , Helge Rhodin

An algorithm for pose and motion estimation using corresponding features in omnidirectional images and a digital terrain map is proposed. In previous paper, such algorithm for regular camera was considered. Using a Digital Terrain (or…

Computer Vision and Pattern Recognition · Computer Science 2011-08-17 Ronen Lerner , Oleg Kupervasser , Ehud Rivlin

Wearable cameras offer a hands-free way to record egocentric images of daily experiences, where social events are of special interest. The first step towards detection of social events is to track the appearance of multiple persons involved…

Computer Vision and Pattern Recognition · Computer Science 2017-01-24 Maedeh Aghaei , Mariella Dimiccoli , Petia Radeva

Due to the ubiquity of smartphones, it is popular to take photos of one's self, or "selfies." Such photos are convenient to take, because they do not require specialized equipment or a third-party photographer. However, in selfies,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-31 Liqian Ma , Zhe Lin , Connelly Barnes , Alexei A. Efros , Jingwan Lu

Like sighted people, visually impaired people want to share photographs on social networking services, but find it difficult to identify and select photos from their albums. We aimed to address this problem by incorporating state-of-the-art…

Human-Computer Interaction · Computer Science 2018-05-07 Yuhang Zhao , Shaomei Wu , Lindsay Reynolds , Shiri Azenkot

Capturing an event from multiple camera angles can give a viewer the most complete and interesting picture of that event. To be suitable for broadcasting, a human director needs to decide what to show at each point in time. This can become…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Bram Vanherle , Tim Vervoort , Nick Michiels , Philippe Bekaert

Face recognition presents a challenging problem in the field of image analysis and computer vision. The security of information is becoming very significant and difficult. Security cameras are presently common in airports, Offices,…

Computer Vision and Pattern Recognition · Computer Science 2014-03-04 Divyarajsinh N. Parmar , Brijesh B. Mehta

The widespread use of cameras in everyday life situations generates a vast amount of data that may contain sensitive information about the people and vehicles moving in front of them (location, license plates, physical characteristics,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Roman Plaud , Jose-Luis Lisani

"Frontalization" is the process of synthesizing frontal facing views of faces appearing in single unconstrained photos. Recent reports have suggested that this process may substantially boost the performance of face recognition systems.…

Computer Vision and Pattern Recognition · Computer Science 2014-12-01 Tal Hassner , Shai Harel , Eran Paz , Roee Enbar

Feedforward monocular face capture methods seek to reconstruct posed faces from a single image of a person. Current state of the art approaches have the ability to regress parametric 3D face models in real-time across a wide range of…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Kelian Baert , Shrisha Bharadwaj , Fabien Castan , Benoit Maujean , Marc Christie , Victoria Abrevaya , Adnane Boukhayma

Omnidirectional image (ODI) data is captured with a field-of-view of 360x180, which is much wider than the pinhole cameras and captures richer surrounding environment details than the conventional perspective images. In recent years, the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Hao Ai , Zidong Cao , Lin Wang

Artistic style transfer can be thought as a process to generate different versions of abstraction of the original image. However, most of the artistic style transfer operators are not optimized for human faces thus mainly suffers from two…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Yicun Liu , Jimmy Ren , Jianbo Liu , Jiawei Zhang , Xiaohao Chen