نتایج جستجو برای: vector tracking

تعداد نتایج: 308886  

Journal: :Image Vision Comput. 2005
Adrian James Chung Fani Deligianni Xiao-Peng Hu Guang-Zhong Yang

This paper presents a new technique for deriving information on visual saliency with experimental eye-tracking data. The strength and potential pitfalls of the method are demonstrated with feature correspondence for 2D to 3D image registration. With this application, an eyetracking system is employed to determine which features in endoscopy video images are considered to be salient from a group...

Journal: :energy equipment and systems 0
seyed-hadi mozafarpoor-khoshrodi electrical engineering, najafabad branch, islamic azad university, najafabad, isfahan, iran ghazanfar shahgholian electrical engineering, najafabad branch, islamic azad university, najafabad, isfahan, iran

one of the main problems in wind energy conversion system (wecs) is how to achieve maxim­u­m output power in different wind speeds. maximum methods for maximum power point tracking in wind energy conversion syst­e­ms require the knowledge of system characteristics and mechanic sensors. so, using these methods practically will follow with high price and an abundant difficulties. in this paper, n...

Journal: :J. Inf. Sci. Eng. 2015
Hongwei Hu Bo Ma Yuwei Wu Weizhang Ma Kai Xie

Although online boosting algorithm has received an increasing amount of interest in visual tracking, it is susceptible to class-label noise. Slight inaccuracies in the tracker can result in incorrectly labeled examples, which degrade the classifier and cause drift. This paper proposes a kernel regression based online boosting method for robust visual tracking. A nonlinear recursive least square...

2006
Joseph P. Havlicek Chuong T. Nguyen Mark Yeary

We compute joint AM-FM models that characterize infrared targets and backgrounds in the modulation domain. We consider spatially localized structures within an IR image as sums of nonstationary, quasi-sinusoidal functions admitting locally narrowband amplitude and frequency modulations. By quantitatively estimating the modulations that dominate the signal spectrum on a spatially local basis, we...

2017
Kunpeng Li Yu Kong Yun Fu

Visual tracking has achieved remarkable success in recent decades, but it remains a challenging problem due to appearance variations over time and complex cluttered background. In this paper, we adopt a tracking-by-verification scheme to overcome these challenges by determining the patch in the subsequent frame that is most similar to the target template and distinctive to the background contex...

Journal: :Neurocomputing 2013
Cheolkon Jung Tian Sun Licheng Jiao

Eye detection plays an important role in face recognition because eyes provide distinctive facial features. However, illumination effects such as heavy shadows and drastic lighting change make it difficult to detect eyes well in facial images. In this paper, we propose a novel framework for illumination invariant eye detection under varying lighting conditions. First, we use adaptive candidate ...

2015
Hana Vrzakova Roman Bednarik

Every purposive interactive action begins with an intention to interact. In the domain of intelligent adaptive systems, behavioral signals linked to the actions are of great importance, and even though humans are good in such predictions, interactive systems are still falling behind. We explored mouse interaction and related eye-movement data from interactive problem solving situations and isol...

2004
Jochen Schmidt Florian Vogt Heinrich Niemann

The paper presents a new vector quantization based approach for selecting well-suited data for hand-eye calibration from a given sequence of hand and eye movements. Data selection is essential if control of the movements used for calibration is not possible, especially when using continuously recorded data. The new algorithm is compared to another method for data selection as well as to the pro...

Journal: :CoRR 2016
Amol S. Patwardhan Gerald M. Knapp

Prison facilities, mental correctional institutions, sports bars and places of public protest are prone to sudden violence and conflicts. Surveillance systems play an important role in mitigation of hostile behavior and improvement of security by detecting such provocative and aggressive activities. This research proposed using automatic aggressive behavior and anger detection to improve the ef...

Journal: :IEICE Transactions 2005
Shinjiro Kawato Nobuji Tetsutani Kenichi Hosaka

In this paper, we propose a method for detection and tracking of faces in video sequences in real time. It can be applied to a wide range of face scales. Our basic strategy for detection is fast extraction of face candidates with a Six-Segmented Rectangular (SSR) filter and face verification by a support vector machine. A motion cue is used in a simple way to avoid picking up false candidates i...

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