In the Still-to-Video (S2V) face recognition, each subject is enrolled with only few high resolution images, while the probe is video clips of complex variations. As faces present distinct characteristics under differ...
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In order to resolve shadow interference and slow image processing speed in the visual navigation of unmanned vehicles on city roads, a new lane detection algorithm based on the Inverse Perspective Mapping(IPM) of vert...
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POWERED by the rapid development of Internet,the penetration of the Internet of Things,the emergence of big data,and the rise of social media,more and more complexsystems are exhibiting the characteristics of social,...
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POWERED by the rapid development of Internet,the penetration of the Internet of Things,the emergence of big data,and the rise of social media,more and more complexsystems are exhibiting the characteristics of social,physical,and information *** systems are known as cyber-physicalsocial systems(CPSS)[1],[2].These CPSS face unprecedented challenges in design,analysis,management,control and integration due to their involvement with human and social factors[3],[4].To cope with this challenge,there are two main approaches to CPSS research.
In this paper, we address the problem of person re-identification and action recognition for service robots,which undergoes lack of training dataset for model learning, reduction of feature set discriminative power in...
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ISBN:
(纸本)9781509046584
In this paper, we address the problem of person re-identification and action recognition for service robots,which undergoes lack of training dataset for model learning, reduction of feature set discriminative power in changing scenarios, and high complexity of the algorithm computation. An online context-based person re-identification algorithm is proposed, which learns the person model online without pre-collect dataset and adjusts the weight of features according to the context information. An online biometric-based action recognition algorithm is proposed, actions are recognized by simply matching the skeleton vectors extracted from five linkage mechanisms of human body. The proposed algorithms are evaluated on a service robot system, extensive experimental results show that they performs efficiently and effectively in various real-life scenarios.
This paper presents a detection method of insulator stings for aerial inspection based on *** local sub-images of insulator strings are firstly collected from aerial videos and tagged to establish a training *** fusio...
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ISBN:
(纸本)9781538629185
This paper presents a detection method of insulator stings for aerial inspection based on *** local sub-images of insulator strings are firstly collected from aerial videos and tagged to establish a training *** fusion feature is then composed by the histogram of oriented gradients(HOG) feature and local binary pattern(LBP) feature after the principal component analysis(PCA) dimension reduction separately.A training model is developed by SVM algorithm with the fusion *** the detection phase,threshold segmentation and morphological operation are adopted to preprocess the *** sliding window method is then used to search the candidate region and the non-maximum suppression(NMS) method is adopted to fuse the candidate ***,the position of the insulator strings can be calculated by linear *** the efficiency and the effectiveness of the proposed method are verified through experiments on locating the multi-angle insulator strings under complex backgrounds.
As legged robots are suitable to be used in unstructured environments,it becomes a popular field of research *** this paper,the development of quadruped robots is *** several typical and recent robot systems are addre...
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ISBN:
(纸本)9781509009107
As legged robots are suitable to be used in unstructured environments,it becomes a popular field of research *** this paper,the development of quadruped robots is *** several typical and recent robot systems are addressed in details,such as HyQ series,StarlETH,ANYmal,MIT Cheetah and BigDog,***,some key techniques of environment perception for quadruped robots,including sensors,feature extraction and identification,mapping and SLAM,are also ***,future researches of quadruped robots in environment perception are given.
In this paper, we propose a data-driven adaptive dynamic programming approach to solve the Hamilton-Jacobi(HJ) equations for the two-player nonzero-sum(NZS) game with completely unknown dynamics. First, the model-base...
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ISBN:
(纸本)9781509046584
In this paper, we propose a data-driven adaptive dynamic programming approach to solve the Hamilton-Jacobi(HJ) equations for the two-player nonzero-sum(NZS) game with completely unknown dynamics. First, the model-based policy iteration(PI) algorithm is given, where the knowledge of system dynamics is required. To relax this requirement,a data-driven adaptive dynamic programming(ADP) is proposed in this paper to solve the unknown nonlinear NZS game with only online data. Neural network approximators are constructed to approach the solution of the HJ equations. The online data is collected under the two initial admissible control policies. Then, the NN weights are updated based on the least-squares method using the collected online data repeatedly, which is a kind of the off-policy learning ***, a simulation example is provided to demonstrate the effectiveness of the proposed control scheme.
In this paper,we address the problem of target tracking control for mobile robots with limited sensing *** end-to-end Gaussian process regression learning control method is proposed to transfer the human control exper...
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ISBN:
(纸本)9781538629185
In this paper,we address the problem of target tracking control for mobile robots with limited sensing *** end-to-end Gaussian process regression learning control method is proposed to transfer the human control experiences to the *** end-to-end learning architecture directly learns the control mapping from the original sensing input space to the final control output space in an human-like *** non-parametric Gaussian process regression accurately transfers the complex human control experiences to the control *** addition,realistic training data set are collected from human operators for the end-to-end control *** performance of the proposed target tracking control method is extensively evaluated on various real-world scenarios,experimental results have demonstrated the robustness,accuracy,and effectiveness of the proposed method.
This paper addresses astronomical trajectory planning algorithms for tracking and basket-weaving for Five-hundred-meter Aperture Spherical Radio Telescope(FAST).In order to achieve stable operation at feed receiver of...
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ISBN:
(纸本)9781509046584
This paper addresses astronomical trajectory planning algorithms for tracking and basket-weaving for Five-hundred-meter Aperture Spherical Radio Telescope(FAST).In order to achieve stable operation at feed receiver of FAST and to ease difficulties of trajectory planning in 3-D space,the observed trajectories were planned in celestial coordinate ***,the characteristics of tracking and basket-weaving were analyzed,and the involved parameters for tracking and basket-weaving were ***,the constraint conditions for planning parameters corresponding to the practical motion were obtained;besides trajectory planning algorithms based on double S velocity profile for tracking and basket-weaving were ***,the numerical results indicated that the planned trajectories are guaranteed to be continuous in position,velocity and acceleration,as well as respect the given motion constraint *** the proposed algorithm cost less planning time than the algorithm plans in 3-D space.
The Five-hundred-meter Aperture Spherical Radio Telescope(FAST) requires high accuracy of positioning and attitude *** to its flexible structure,the cable-cabin system can be excited to vibrate,which affects the ***...
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ISBN:
(纸本)9781538629185
The Five-hundred-meter Aperture Spherical Radio Telescope(FAST) requires high accuracy of positioning and attitude *** to its flexible structure,the cable-cabin system can be excited to vibrate,which affects the *** alleviate the vibration during the slewing task,taking advantage of s-curve planning and input shaping,a cascade motion planning method is *** the main vibration mode,a simplified cable-cabin model is built for simulation according to the parameters of *** experiments are conducted to prove that the cascade method is effective in vibration suppression and robust to the change of natural frequency.
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