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For visual tracking, an ideal filter learned by the correlation filter (CF) method should take both discrimination and reliability information. However, existing attempts usually focus on the former one while pay less attention to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-25 Chong Sun , Dong Wang , Huchuan Lu , Ming-Hsuan Yang

Simultaneous Localization and Mapping (SLAM) algorithms perform visual-inertial estimation via filtering or batch optimization methods. Empirical evidence suggests that filtering algorithms are computationally faster, while optimization…

Systems and Control · Electrical Eng. & Systems 2022-08-05 Amay Saxena , Chih-Yuan Chiu , Joseph Menke , Ritika Shrivastava , Shankar Sastry

Estimating eye-gaze from images alone is a challenging task, in large parts due to un-observable person-specific factors. Achieving high accuracy typically requires labeled data from test users which may not be attainable in real…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Seonwook Park , Emre Aksan , Xucong Zhang , Otmar Hilliges

Temporal camera relocalization estimates the pose with respect to each video frame in sequence, as opposed to one-shot relocalization which focuses on a still image. Even though the time dependency has been taken into account, current…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Lei Zhou , Zixin Luo , Tianwei Shen , Jiahui Zhang , Mingmin Zhen , Yao Yao , Tian Fang , Long Quan

Vision sensors are extensively used for localizing a robot's pose, particularly in environments where global localization tools such as GPS or motion capture systems are unavailable. In many visual navigation systems, localization is…

Robotics · Computer Science 2025-02-04 Dabin Kim , Inkyu Jang , Youngsoo Han , Sunwoo Hwang , H. Jin Kim

This paper revisits visual saliency prediction by evaluating the recent advancements in this field such as crowd-sourced mouse tracking-based databases and contextual annotations. We pursue a critical and quantitative approach towards some…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Hamed R. Tavakoli , Fawad Ahmed , Ali Borji , Jorma Laaksonen

On board monitoring of the alertness level of an automotive driver has been a challenging research in transportation safety and management. In this paper, we propose a robust real time embedded platform to monitor the loss of attention of…

Computer Vision and Pattern Recognition · Computer Science 2015-05-15 Anirban Dasgupta , Anjith George , S. L. Happy , Aurobinda Routray

We consider the problem of estimating the state of a noisy linear dynamical system when an unknown subset of sensors is arbitrarily corrupted by an adversary. We propose a secure state estimation algorithm, and derive (optimal) bounds on…

Optimization and Control · Mathematics 2016-11-17 Shaunak Mishra , Yasser Shoukry , Nikhil Karamchandani , Suhas Diggavi , Paulo Tabuada

Target tracking problem has many practical applications in real life. In submarines, target tracking is done using, preferably, passive sensors. These sensors measure only the bearing angles between the observed target and the ownship.…

Signal Processing · Electrical Eng. & Systems 2020-02-24 Hasan Hüseyin Sönmez , Köksal Hocaoğlu

Algorithms for the estimation of gaze direction from mobile and video-based eye trackers typically involve tracking a feature of the eye that moves through the eye camera image in a way that covaries with the shifting gaze direction, such…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Kevin Barkevich , Reynold Bailey , Gabriel J. Diaz

Conventional feature-based and model-based gaze estimation methods have proven to perform well in settings with controlled illumination and specialized cameras. In unconstrained real-world settings, however, such methods are surpassed by…

Computer Vision and Pattern Recognition · Computer Science 2018-05-15 Seonwook Park , Xucong Zhang , Andreas Bulling , Otmar Hilliges

This paper introduces human-robot sensory augmentation and illustrates it on a tracking task, where performance can be improved by the exchange of sensory information between the robot and its human user. It was recently found that during…

Robotics · Computer Science 2020-02-19 Yanan Li , Jonathan Eden , Gerolamo Carboni , Etienne Burdet

Acquiring the accurate 3-D position of a target person around a robot provides fundamental and valuable information that is applicable to a wide range of robotic tasks, including home service, navigation and entertainment. This paper…

Robotics · Computer Science 2017-03-16 Mengmeng Wang , Daobilige Su , Lei Shi , Yong Liu , Jaime Valls Miro

Based on the DeepSORT algorithm, this study explores the application of visual tracking technology in intelligent human-computer interaction, especially in the field of gesture recognition and tracking. With the rapid development of…

Human-Computer Interaction · Computer Science 2025-05-13 Tong Zhang , Fenghua Shao , Runsheng Zhang , Yifan Zhuang , Liuqingqing Yang

Many cameras implement auto-focus functionality. However, they typically require the user to manually identify the location to be focused on. While such an approach works for temporally-sparse autofocusing functionality (e.g., photo…

Computer Vision and Pattern Recognition · Computer Science 2017-11-10 Wolfgang Fuhl , Thiago Santini , Enkelejda Kasneci

Inertial motion capture systems widely use low-cost IMUs to obtain the orientation of human body segments, but these sensors alone are unable to estimate link positions. Therefore, this research used a SLAM method in conjunction with…

Robotics · Computer Science 2024-02-16 Mohammad Mahdi Azarbeik , Hamidreza Razavi , Kaveh Merat , Hassan Salarieh

Event cameras provide a natural and data efficient representation of visual information, motivating novel computational strategies towards extracting visual information. Inspired by the biological vision system, we propose a behavior driven…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Nan Cai , Pia Bideau

This work develops a learning-based contact estimator for legged robots that bypasses the need for physical sensors and takes multi-modal proprioceptive sensory data as input. Unlike vision-based state estimators, proprioceptive state…

Robotics · Computer Science 2021-11-30 Tzu-Yuan Lin , Ray Zhang , Justin Yu , Maani Ghaffari

The Kalman filter is the most powerful tool for estimation of the states of a linear Gaussian system. In addition, using this method, an expectation maximization algorithm can be used to estimate the parameters of the model. However, this…

Computation · Statistics 2020-06-01 Tsuyoshi Ishizone , Kazuyuki Nakamura

Eye tracking is handled as one of the key technologies for applications that assess and evaluate human attention, behavior, and biometrics, especially using gaze, pupillary, and blink behaviors. One of the challenges with regard to the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Efe Bozkir , Ali Burak Ünal , Mete Akgün , Enkelejda Kasneci , Nico Pfeifer