Object tracking is a primary step for image processing applications like object recognition, navigation systems and surveillance systems. The current image and the background image is differentiated by approaching con...
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ISBN:
(纸本)9781479939145
Object tracking is a primary step for image processing applications like object recognition, navigation systems and surveillance systems. The current image and the background image is differentiated by approaching conventionally in image processing. Image subtraction based algorithms are mainly used in extracting features of moving objects and take the information in frames. Here three algorithms namely Extended Kalman Filter, Gaussian Mixture Model (GMM), mean shift algorithm are compared in the context of multiple object tracking. The comparative results show that GMM performs well when there are occlusions. Extended Kalman filter fails because of abnormal behavior in the distribution of random variables when there is nonlinear transformation. It cannot identify multiple objects when there are occlusions. mean shift algorithm is best suitable for single object tracking and is very sensitive to window size which is adaptive. Results show that this algorithm has the limitation to detect multiple objects when there is even slight occlusion.
The meanshift image segmentation algorithm is very computationintensive. To address the need to deal with a large number of remotesensing (RS) image segmentations in real-world applications, this studyhas investigat...
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The meanshift image segmentation algorithm is very computationintensive. To address the need to deal with a large number of remotesensing (RS) image segmentations in real-world applications, this studyhas investigated the parallelization of the mean shift algorithm on asingle graphics processing unit (GPU) and a task-scheduling methodwith message passing interface (MPI)+OpenCL programming model on aGPU cluster platform. This paper presents the test results of the parallelmeanshift image segmentation algorithm on Shelob, a GPU clusterplatform at Louisiana State University, with different datasets andparameters. The experimental results show that the proposed parallelalgorithm can achieve good speedups with different configurations andRS data and can provide an effective solution for RS image processingon a GPU cluster.
An improved meanshift target tracking algorithm integrated with the Kalman Filter (KFMS algorithm) is proposed to address the challenge of accurately tracking targets in complex environments using parallel robots. Th...
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An improved meanshift target tracking algorithm integrated with the Kalman Filter (KFMS algorithm) is proposed to address the challenge of accurately tracking targets in complex environments using parallel robots. This algorithm combines the local search capability of the mean shift algorithm with the state estimation capability of the Kalman Filter, reducing the impact of complex environments on tracking performance. It achieves accurate global tracking of targets by the camera, effectively improving the stability and accuracy of dynamic target tracking. Experimental results with a local camera show that the target tracking accuracy and success rate of the improved KFMS algorithm are increased by 21.3% and 29.6%, respectively, compared to the mean shift algorithm, further validating the effectiveness of the enhanced algorithm.
With the theory of beautiful China, the construction and planning of rural landscapes are getting more and more attention. However, China's rural landscape design lacks innovation and practicality. Therefore, in o...
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With the theory of beautiful China, the construction and planning of rural landscapes are getting more and more attention. However, China's rural landscape design lacks innovation and practicality. Therefore, in order to avoid the homogeneity of rural landscape design, it is necessary to ensure that rural landscape designs are consistent with the sustainable development of the rural area system. The study is based on the vector machine and the mean shift algorithm in remote sensing control for the segmentation and feature extraction of architectural images, using the function weight addition and the introduction of background suppression factor, to develop a model and algorithms that are more suitable for the diversified features of the buildings. The results indicate that the research method has a maximum accuracy of 99% in extracting architectural images, and the image quality evaluation can reach 100%. In the application analysis, it was found that the economic benefit of unused land in the countryside was low, and the green conservation information of ancient villages in the landscape was 57.3%. Therefore, the model designed by the study has good integrity for architectural image feature extraction, good accuracy, high image quality, and good application value for countryside landscape design.
Directional data consist of observations distributed on a (hyper)sphere, and appear in many applied fields, such as astronomy, ecology, and environmental science. This paper studies both statistical and computational ...
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Directional data consist of observations distributed on a (hyper)sphere, and appear in many applied fields, such as astronomy, ecology, and environmental science. This paper studies both statistical and computational problems of kernel smoothing for directional data. We generalize the classical mean shift algorithm to directional data, which allows us to identify local modes of the directional kernel density estimator (KDE). The statistical convergence rates of the directional KDE and its derivatives are derived, and the problem of mode estimation is examined. We also prove the ascending property of the directional mean shift algorithm and investigate a general problem of gradient ascent on the unit hypersphere. To demonstrate the applicability of the algorithm, we evaluate it as a mode clustering method on both simulated and real-world data sets.
As the scale of engineering projects continues to grow, safety management on construction sites faces significant challenges. Traditional methods such as manual inspections and periodic checks struggle to achieve real...
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As the scale of engineering projects continues to grow, safety management on construction sites faces significant challenges. Traditional methods such as manual inspections and periodic checks struggle to achieve real-time and effective monitoring of potential hazards, which can lead to accidents. In recent years, image analysis technology has increasingly been applied to the monitoring of engineering safety hazards due to its automation, Areal-time capabilities, and high efficiency. However, existing image analysis algorithms still encounter issues such as insufficient tracking accuracy and delayed warning responses in complex engineering environments. To address these problems, this study proposes aArealtime hazard tracking and identification method based on an improved mean shift algorithm, combined with a support vector machine (SVM) for critical state early warning of engineering safety hazards. The system improves recognition accuracy and early warning response speed in complex environments through algorithm optimization, offering higher practicality and reliability. This provides a technical safeguard for safety management at construction sites.
Several defects have been found in the former experiments of basic mean shift algorithm, such as the erroneous judgments when target blocked by a large proportion of barrier. Thus, a fast target tracking algorithm bas...
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ISBN:
(纸本)9781510817371
Several defects have been found in the former experiments of basic mean shift algorithm, such as the erroneous judgments when target blocked by a large proportion of barrier. Thus, a fast target tracking algorithm based on meanshift combined Kalman filter is proposed for the theoretical defect of basic meanshift. The blocking issue and tracking of fast moving target are discussed in this paper and applied in the independent visual robotic fish tracking. Here are our conceptions: Firstly, the initial position of meanshift is provided with Kalman filter in every frame, then mean shift algorithm is used to track the position of target. Secondly, the calculation of the Kalman residuals is applied to turn on and turn off the Kalman filter under a large proportion of blocking situation, at the same time, the linear prediction of the target position is replaced by Kalman's function test. Finally, we conduct a real-time tracking experiment on the independent visual robotic fish tracking a moving ball, it is proved that the algorithm can achieve the tracking of fast moving target and robust against the barrier as well.
Eye state analysis in real-time is a main input source for Fatigue Detection Systems and Human Computer Interaction applications. This paper presents a novel eye state analysis design aimed for human fatigue evaluatio...
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Eye state analysis in real-time is a main input source for Fatigue Detection Systems and Human Computer Interaction applications. This paper presents a novel eye state analysis design aimed for human fatigue evaluation systems. The design is based on an interdependence and adaptive scale meanshift (IASMS) algorithm. IASMS uses moment features to track and estimate the iris area in order to quantify the state of the eye. The proposed system is shown to substantially improve non-rigid eye tracking performance, robustness and reliability. For evaluating the design performance an established eye blink database for blink frequency analysis was used. The design performance was further assessed using the newly formed Strathclyde Facial Fatigue (SFF) video footage database(1) of controlled sleep-deprived volunteers. (C) 2014 Elsevier Ltd. All rights reserved.
Object tracking is a primary step for image processing applications like object recognition, navigation systems and surveillance systems. The current image and the background image is differentiated by approaching con...
详细信息
ISBN:
(纸本)9781479939152
Object tracking is a primary step for image processing applications like object recognition, navigation systems and surveillance systems. The current image and the background image is differentiated by approaching conventionally in image processing. Image subtraction based algorithms are mainly used in extracting features of moving objects and take the information in frames. Here three algorithms namely Extended Kalman Filter, Gaussian Mixture Model (GMM), mean shift algorithm are compared in the context of multiple object tracking. The comparative results show that GMM performs well when there are occlusions. Extended Kalman filter fails because of abnormal behavior in the distribution of random variables when there is nonlinear transformation. It cannot identify multiple objects when there are occlusions. mean shift algorithm is best suitable for single object tracking and is very sensitive to window size which is adaptive. Results show that this algorithm has the limitation to detect multiple objects when there is even slight occlusion.
Recent years, the methods to combine artificial intelligence technology with 3D image processing technology has become a hub for research in packaging design. Traditional 3D images are mostly produced by professional ...
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Recent years, the methods to combine artificial intelligence technology with 3D image processing technology has become a hub for research in packaging design. Traditional 3D images are mostly produced by professional equipment, but this method is small in scope and high in cost, which does not meet the needs of most people. To solve the above problems, this study combines the mean shift algorithm with the confidence propagation algorithm, and obtains the confidence propagation-mean shift algorithm. In addition, the Lucascanard-confidence factor optical flow algorithm is improved by introducing the confidence factor to the Lucascanard-confidence factor optical flow algorithm. The research continues to combine the confidence propagation-mean shift algorithm with the Lucaskarnad-confidence factor optical flow algorithm to extract parallax maps and then synthesize 3D images. The results show that the iteration times and iteration time of the confidence propagation-mean shift algorithm are 9 times and 97.05 s, respectively. The number of parallax templates and the number of regions is 6 and 43 respectively. The confidence propagation-mean shift algorithm has 4 iterations, 36.8 s iteration time, 14 parallax templates and 65 regions in the category of portrait images. The accuracy of foreground depth, background depth and depth are 99.72, 99.87 and 99.80%, respectively, for the Lucas Kanard-confidence factor optical flow algorithm. In summary, the two algorithms proposed in this study have excellent performance, which can extract parallax map well and generate 3D image accurately, owning certain promotion value in the field of product packaging design.
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