The problem of visualtracking evaluation is sporting a large variety of performance measures, and largely suffers from lack of consensus about which measures should be used in experiments. This makes the cross-paper ...
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The problem of visualtracking evaluation is sporting a large variety of performance measures, and largely suffers from lack of consensus about which measures should be used in experiments. This makes the cross-paper tracker comparison difficult. Furthermore, as some measures may be less effective than others, the tracking results may be skewed or biased toward particular tracking aspects. In this paper, we revisit the popular performance measures and tracker performance visualizations and analyze them theoretically and experimentally. We show that several measures are equivalent from the point of information they provide for tracker comparison and, crucially, that some are more brittle than the others. Based on our analysis, we narrow down the set of potential measures to only two complementary ones, describing accuracy and robustness, thus pushing toward homogenization of the tracker evaluation methodology. These two measures can be intuitively interpreted and visualized and have been employed by the recent visual object tracking challenges as the foundation for the evaluation methodology.
Deep learning is the discipline of training computational models that are composed of multiple layers and these methods have recently improved the state of the art in many areas as a virtue of large labeled datasets, ...
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ISBN:
(纸本)9781509016792
Deep learning is the discipline of training computational models that are composed of multiple layers and these methods have recently improved the state of the art in many areas as a virtue of large labeled datasets, increase in the computational power of current hardware and unsupervised training methods. Although such a dataset may not be available for lots of application areas, the representations obtained by the well-designed networks that have a large representation capacity and trained with enough data are claimed to have the ability to generalize for transfer learning. As an example application, in this work, we investigate the use of stacked autoencoders for visual object tracking, which is a challenging yet very important task in computer vision. Training of autoencoders is achieved via an auxiliary dataset and the resultant representations are utilized within the tracking-by-detection framework. Experiments, realized using a challenge toolkit, indicate that exploiting the intricate structure in auxiliary dataset via hierarchical representations contributes to the solution of visual object tracking problem.
Video recording systems are becoming ubiquitous today towards several critical applications including automated video surveillance, traffic monitoring, and smart environments. visual object tracking is one of challeng...
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ISBN:
(纸本)9781509010660
Video recording systems are becoming ubiquitous today towards several critical applications including automated video surveillance, traffic monitoring, and smart environments. visual object tracking is one of challenging and emerging research topics in the recent past in the domain of image processing and computer vision. It is the process of locating and tracking the motion and orientation of one or multiple moving objects over time in the given video sequence. In this paper, we present the design and implementation of a visual object tracking system using video scenes captured from a single surveillance camera. The proposed system uses a discriminative correlation filter based model which is robust and computationally efficient for real time tracking. The proposed system is developed as IPython notebook using several open source libraries. Experiments are conducted on three real world publicly available benchmarking video sequences. Our experimental results show that maximum center location error is only 5 pixels while achieving an average success rate of 80% in tracking the object of the interest.
This paper focuses on the optimization and improvement of visual-based objecttracking algorithm. Reflecting from previously used tracking algorithm, we approach the problem using L2-regularized least squares to solve...
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ISBN:
(纸本)9783319474373;9783319474366
This paper focuses on the optimization and improvement of visual-based objecttracking algorithm. Reflecting from previously used tracking algorithm, we approach the problem using L2-regularized least squares to solve the sparse representation matrix of the object appearance model and propose an efficient collaborative algorithm to track the object. A hierarchical framework and selective multi-memory based online dictionary update are developed to upgrade the speed of the algorithm and improve the robustness by considering both current and history appearance into the template. In addition, key-point feature matching is novelly proposed to further enhance the accuracy of the tracking algorithm by calculating an optical flow based similarity degree. Finally, the proposed algorithm is verified using comprehensive image sequence datasets to demonstrate its effectiveness on coping with various tracking challenges, such as object deformations, illumination changes and partial occlusions.
Compared with affine transformation, projection transformation represents the process of imaging objects more accurately. This paper proposes a novel objecttracking method using particle filtering with dual manifold ...
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Compared with affine transformation, projection transformation represents the process of imaging objects more accurately. This paper proposes a novel objecttracking method using particle filtering with dual manifold models. One is the covariance manifold used for the object observation model, and the other is the geometric deformation on SL(3) group, where the rank of projection transformation matrix equals 1, adapted to utilize for object dynamic model. Our main contribution is to utilize both the geometry of SL(3) group and covariance manifolds in developing a general particle filtering-based tracking algorithm. Extensive experiments prove that the proposed method can realize stable and accurate tracking of object with significant geometric deformation, even with illumination changes and when an object is obscured.
visual object tracking (VOT) is one ofthe most challenging problems in the field of computer vision, which plays a crucial role in many applications, especially in human-computer interaction, surveillance and robotics...
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ISBN:
(纸本)9781467382663
visual object tracking (VOT) is one ofthe most challenging problems in the field of computer vision, which plays a crucial role in many applications, especially in human-computer interaction, surveillance and robotics. This paper investigates the contribution of perceptual hash algorithm (PHA) in visual object tracking, which is to generate a "fingerprint" string for each image, and then compare the fingerprint of different images. The results are closer, which means the pictures are more similar. We use the hash fingerprint to conduct the objecttracking. Our results suggest that perceptual hash algorithm attributes provide superior performance for visual object tracking, and effectively improve the image match.
visual object tracking is one of many important applications for surveillance systems. The issues for visual object tracking are robustness from background interference, scaling and occlusion detection. In this paper,...
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ISBN:
(纸本)9781467366649
visual object tracking is one of many important applications for surveillance systems. The issues for visual object tracking are robustness from background interference, scaling and occlusion detection. In this paper, visual object tracking using improved Mean Shift algorithm is proposed. Mean Shift algorithm is used to obtain center object target for tracking. Corrected Background Weighted Histogram is added in target model to reduce background interference. Then, Scale adaptive methods is added in Mean Shift for scaling. Occlusion detection is handled by scaled Normalized Cross Correlation. The results prove that the proposed method is robust from noise background, scaling and occlusion detection.
This paper proposes a new visual object tracking algorithm based on an adaptive neuro fuzzy inference system (ANFIS) for arbitration algorithm between a finite impulse response (FIR) filter and optical flow (OF). The ...
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This paper proposes a new visual object tracking algorithm based on an adaptive neuro fuzzy inference system (ANFIS) for arbitration algorithm between a finite impulse response (FIR) filter and optical flow (OF). The proposed algorithm is called ANFIS-based FIR filter and OF arbitration (AFOA). The AFOA operates as an FIR filter for normal situations, keeping the computational cost low, and, when abrupt turns occur, converts to an OF to compensate for the inaccuracy of the FIR filter. An ANFIS-based arbitration algorithm constructs a mapping system from given inputs to an output using fuzzy logic and determines tracking mode of the tracking process between the FIR filter and the OF. The effectiveness of the AFOA algorithm is demonstrated by experiments employed on real-time video clips along with a comparative analysis with the ANFIS-based Kalman filter and OF arbitration (AKOA). (C) 2015 Elsevier Ltd. All rights reserved.
One of the major goals in the field of computer vision is to enable computers to replicate the basic functions of human vision such as motion perception and scene understanding. To achieve the goal of intelligent moti...
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One of the major goals in the field of computer vision is to enable computers to replicate the basic functions of human vision such as motion perception and scene understanding. To achieve the goal of intelligent motion perception, much effort has been spent on visual object tracking. Research interest in visual object tracking comes from the fact that it has a wide range of real-world applications. The uncertainty of validating unpredictable features in objecttracking is a challenging task in visual object tracking with occlusion and large appearance variation. To address this uncertainty, we propose an adaptive approach which uses updating model based on the occlusion and distortion parameters. In case of occlusion or large appearance variation, the proposed method uses backward model validation where it updates the invalid appearance and then validates the target feature model. If the target feature did not undergo any kind of clutter or distortions, it simply validates and then updates the appearance model using forward feature validation. The experimental results obtained from this adaptive approach demonstrate effectiveness in terms of OR (Overlap Rate) and Center Location Error, compared with other relevant existing algorithms. (C) 2015 Published by Elsevier B.V.
visual object tracking (VOT) is one of the most challenging problems in the field of computer vision, which plays a crucial role in many applications, especially in human-computer interaction, surveillance and robotic...
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ISBN:
(纸本)9781467382670
visual object tracking (VOT) is one of the most challenging problems in the field of computer vision, which plays a crucial role in many applications, especially in human-computer interaction, surveillance and robotics. This paper investigates the contribution of perceptual hash algorithm (PHA) in visual object tracking, which is to generate a "fingerprint" string for each image, and then compare the fingerprint of different images. The results are closer, which means the pictures are more similar. We use the hash fingerprint to conduct the objecttracking. Our results suggest that perceptual hash algorithm attributes provide superior performance for visual object tracking, and effectively improve the image match.
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