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- Keyword
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- Simulation (131)
- Virtual reality (41)
- Genetic algorithm (40)
- Numerical simulation (40)
- Path planning (36)
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- Modeling and simulation (34)
- Particle swarm optimization (34)
- Deep learning (33)
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- Digital twin (25)
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- Virtual simulation (18)
- Complex network (17)
- Traffic simulation (17)
- Permanent magnet synchronous motor (16)
- UAV (16)
- Unity3D (16)
- Energy consumption (15)
- Support vector machine (15)
- Collision detection (14)
- Deep reinforcement learning (14)
- Parameter identification (14)
- Publication Year
Articles 3091 - 3120 of 3363
Full-Text Articles in Physical Sciences and Mathematics
Research Of Analysis Method Of Presenters’ Reputation Record, Zhiyong Yu, Wang Na, Niu Kan, Jindong Wang
Research Of Analysis Method Of Presenters’ Reputation Record, Zhiyong Yu, Wang Na, Niu Kan, Jindong Wang
Journal of System Simulation
Abstract: In order to satisfy the requirement of service presenters’ credibility from recommendation system, this paper put forward a method based on the analysis of reputation record to find the most credible presenters. The preference similarity between different users is calculated with users’ preference vectors. The relevance of the fields, recommendation response rate and recommendation satisfaction rate are then calculated to filter the presenters. The presenters’ current reputation is calculated by introducing the penalty factor. We filter the presenters’ reputation record with localized changes and tendentious changes and calculate the skewness coefficient and kurtosis coefficient of the reputation records …
Analysis Of Key Issues In Building Joint Operation Analytic Simulation System, Gensheng Hu, Shiguang Yue, Xiaogang Qiu, Zhao Kai
Analysis Of Key Issues In Building Joint Operation Analytic Simulation System, Gensheng Hu, Shiguang Yue, Xiaogang Qiu, Zhao Kai
Journal of System Simulation
Abstract: The significance and reasons of key problems including the simulating efficiency, the model systems, the standard specification and system application are analyzed. On this basis, we discuss how to use techniques of high performance simulation engine, system modeling focused on C4ISR, artificial intelligence, and warfighting experimentation to solve these problems. We propose “two-line & three-layer” model VV&A management, “three-in-one” cooperative working pattern, and standard operation process of simulation analysis. Our works provide references for construction and application of the future joint operations simulation system.
Visualized Parameter-Tuned Algorithm For Control Loading System, Xie Chen, Shuchu Zhang, Zhenyu Sun
Visualized Parameter-Tuned Algorithm For Control Loading System, Xie Chen, Shuchu Zhang, Zhenyu Sun
Journal of System Simulation
Abstract: To improve the fidelity of flight simulators, a control loading system is introduced in this paper which has the most direct effect on the pilot's intuitive perception. The overall design, hardware construction and digital simulation results of the system are given. In the process of system realization, the visual displacement-force loading configuration scheme is adopted to solve such problems as requirement changes or parameter excursions in hardware. The algorithm of output waveform curve adjustment based on cubic spline interpolation is proposed and the parameters are adjusted according to demand through graphical operation interface by maintenance personnel. The traditional method …
Cloud Job Scheduling Model Based On Improved Plant Growth Algorithm, Li Qiang, Xiaofeng Liu
Cloud Job Scheduling Model Based On Improved Plant Growth Algorithm, Li Qiang, Xiaofeng Liu
Journal of System Simulation
Abstract: The performance of cloud job scheduling algorithm has a great importance to the whole cloud system. The key factors that affect cloud operation scheduling are found out, and a resource constraint model is established. The existing simulation plant growth algorithm is improved based on the Logistic model of plant growth law, so that the plant growth way was made to change according to the energy power. The comparison of four different plant models was carried out and their different features were analyzed. Compared with 6 typical cloud job scheduling algorithms, it is concluded that the improved simulation plant growth …
Real-Time Rendering Of Massive Cad Models For High-Credibility Simulation, Junjie Xue, Junhua Zhou, Guoqiang Shi, Huiyang Qu
Real-Time Rendering Of Massive Cad Models For High-Credibility Simulation, Junjie Xue, Junhua Zhou, Guoqiang Shi, Huiyang Qu
Journal of System Simulation
Abstract: The full-size 3D models of complex products have huge data sizes and are extremely complex. It is difficult to meet the requirements for the real-time rendering efficiency of the simulation application by merely relying on the performance of the existing computer hardware. This paper proposes a geometry metric method based on minimum bounding box and multi-view projection, which can accurately identify narrow and irregular small parts in the model. Combining with a model-details-filtering based adaptive LOD rendering algorithm, the real-time rendering of massive CAD models is realized. The experiments are carried out on the Boeing 777 aircraft model. The …
Application Tests Of Mudis In Surface Ship Operation Training Simulation System, Xu Jing, Zhengxiang Xiong, Yongsheng Zhang, Xu Ming
Application Tests Of Mudis In Surface Ship Operation Training Simulation System, Xu Jing, Zhengxiang Xiong, Yongsheng Zhang, Xu Ming
Journal of System Simulation
Abstract: To meet the network communication demands of surface ship operation training simulation system, a multi-layer distributed service data interaction RTI was developed, which supported several system frameworks; and the main functions of HLA and DDS standards were realized. The distributed service with multiple key points was adopted; the data with several frequency response mechanisms and intelligent communication methods were provided; and the active analysis of data communication behavior was obtained. It had error-tolerance and adaptive load balancing capabilities. The MuDIS tests on data control, real-time data communication, time advance request delay, error-tolerance performance and so on were carried out …
Simulation-Based Acquisition Platform For Complex Equipment, Huiyang Qu, Yaoqin Zhu, Ruiying Pu, Junhua Zhou, Guoqiang Shi
Simulation-Based Acquisition Platform For Complex Equipment, Huiyang Qu, Yaoqin Zhu, Ruiying Pu, Junhua Zhou, Guoqiang Shi
Journal of System Simulation
Abstract: Based on the architecture of the simulation-based acquisition platform and the integrated modeling technology, the modeling and simulation technology based on virtual prototype is described. The modeling and simulation techniques for reliability, maintainability and supportability, and for the acquisition project management across the life-cycle are elaborated. Based on an aerospace complex equipment acquisition project, the application of the simulation-based acquisition platform in the aerospace equipment demonstration, development and support phase is introduced.
Development History And Case Study Of Interoperability Between Us Combat Simulation And C2 Systems, Xiangzhong Xu, Zaijiang Tang, Yaxin Tan
Development History And Case Study Of Interoperability Between Us Combat Simulation And C2 Systems, Xiangzhong Xu, Zaijiang Tang, Yaxin Tan
Journal of System Simulation
Abstract: The analysis of heterogeneity between U.S. combat simulation and command & control (C2) systems is carried out. The roadmap, its main development stage and main tendency of interoperability between US combat simulation and C2 systems are also analyzed. Two case studies, Viz., the Naval Simulation System/the Global Command and Control - Maritime (NSS/GCCS-M) Federation and C4I Team Training System (CTTS) are conducted, which are representatives of bidirectional interfaces and embedded interoperability respectively. The main measures such as ensuring interoperability which is a shared responsibility between the M&S and C2 communities, long-term plan and coordination are beneficial to the promotion …
Collision Avoidance Performance Improvement For Tcas In Multi-Aircraft Situations Based On State Prediction, Tang Jun, Fen Zhu, Wan Yu, Songyang Lao
Collision Avoidance Performance Improvement For Tcas In Multi-Aircraft Situations Based On State Prediction, Tang Jun, Fen Zhu, Wan Yu, Songyang Lao
Journal of System Simulation
Abstract: Currently the density of the airspace increases with the air traffic flow increasing significantly, and therefore the conflict occurrence possibility of two or multiple aircraft raises. However, the traffic collision avoidance system （TCAS） may not be able to resolve all the collision problems of multi-threat situation. There is an active demand to improve its performance in multi-threat situation. This paper mathematically describes the traditional TCAS anti-collision mechanism, and achieves its expansion in the horizontal direction, thus proposes the improvement algorithm of collision avoidance performance for TCAS in multi-aircraft situations based on the state prediction. Adjusting the height and vertical …
Research On Assessment Of Operation System‘S Resilience Based On Test Bed, Rong Ming, Xiaofeng Hu, Jingyu Yang
Research On Assessment Of Operation System‘S Resilience Based On Test Bed, Rong Ming, Xiaofeng Hu, Jingyu Yang
Journal of System Simulation
Abstract: The warfare under the information condition is the System of Systems (SOS) combat. The resilience of SOS is the ability to support the functions necessary for mission success with higher probability, shorter periods of reduced capability, and across a wider range of scenarios, conditions, and threats, in spite of hostile action or adverse conditions. It has gradually become a focus in developed countries. The problems of SOS resilience evaluation are analyzed and a analysis method under test bed simulation is constructed. By meaning of integrity,dynamic and confrontation, we propose resilience assessment models to evaluate resilience by competitive game and …
Trajectory Optimization Design Of Ascending Phase For Solid Launch Vehicle Based On Fish-Swarm Algorithm, Xiaosu Li, Chao Tao, Songyan Wang
Trajectory Optimization Design Of Ascending Phase For Solid Launch Vehicle Based On Fish-Swarm Algorithm, Xiaosu Li, Chao Tao, Songyan Wang
Journal of System Simulation
Abstract: The trajectory optimization of ascending stage for multi-stage solid launch vehicle using artificial fish-swarm optimization algorithm is presented. The flight program angle of ascending stage is designed. A pseudo-spectral method is used to discretize the dynamic optimization problem into the parameter optimization problem. The fish-swarm algorithm is used to solve an initial ballistics as the initial value, and the parameter optimization problem is solved by SQP. The simulation results show that the fish-swarm algorithm can effectively solve the trajectory optimization problem of multi-stage solid launch vehicles. The flight duration of the optimized scheme is reduced. The algorithm has …
Key Points Analysis And Simulation For System Design Of Airborne Was-Gmti Radar, Yan He, Daiyin Zhu
Key Points Analysis And Simulation For System Design Of Airborne Was-Gmti Radar, Yan He, Daiyin Zhu
Journal of System Simulation
Abstract: Wide area surveillance-ground moving target detection (WAS-GMTI) mode is one of the important modes for most multi-functional airborne radar. System design of the WAS-GMTI mode can affect the final moving targets detection and tracking abilities to a great extent. Therefore, research focuses on the system design of multi-channel WAS-GMTI radar system. The expression of WAS-GMTI radar echo (including the crab angle) is derived. Signal to noise ratio (SNR) and clutter to noise ratio (CNR) are presented. These are the preparations and foundations for the further discussion. Four key points are detailedly analyzed in the process of system design of …
Simulation Of Influence Of Coal-Based Industry On Water Resources Bearing System, Yalin Chen, Wangsheng Gui, Qianjin Dong, Ye Chun, Haotian Wu
Simulation Of Influence Of Coal-Based Industry On Water Resources Bearing System, Yalin Chen, Wangsheng Gui, Qianjin Dong, Ye Chun, Haotian Wu
Journal of System Simulation
Abstract: The contradictory spatial distribution between China's coal resources and water resources has become the stress to sustainable development of regional ecological environment and social economy. The paper presents interactive simulation model of regional water resources bearing system based on System Dynamics; and then Ningxia Hui Autonomous Region is used as an example, the dynamic process of local water bearing system was simulated under different scenarios of planning. The simulation results show that regional sustainable development of water resources would be achieved if the resources are allocated based on the market, while the gap between supply and demand of regional …
Numerical Simulation Of Shock Wave Effect On Damaged Upper And Lower Adjacent Structures Of Ships, Run Miao, Weili Wang, Hongjie Liu, Shiyong Wu, Zeng Liang
Numerical Simulation Of Shock Wave Effect On Damaged Upper And Lower Adjacent Structures Of Ships, Run Miao, Weili Wang, Hongjie Liu, Shiyong Wu, Zeng Liang
Journal of System Simulation
Abstract: The damage effect of shock wave on the upper and lower adjacent cabin structure of small warship is studied. LS-DYNA finite element analysis software is used. Damage modes of upper and lower adjacent cabin structures under dynamic and static explosion are analyzed. Cabin damage under different charging speeds is calculated. The results show that in the dynamic explosion state, there is a big difference between the shock wave field and the static explosion, which causes different modes of bulkhead damage. When the explosive happens in the lower cabin, the upper cabin bulkhead is extruded by the deformation of the …
Evaluation Of Contribution Of Army Combined Arms In All-Domains Weapon System-Of-Systems Based On Critical Capability, Xiaochao Qian, Tang Wei, Chen Wei, Yingbo Lu, Zhifeng Lu
Evaluation Of Contribution Of Army Combined Arms In All-Domains Weapon System-Of-Systems Based On Critical Capability, Xiaochao Qian, Tang Wei, Chen Wei, Yingbo Lu, Zhifeng Lu
Journal of System Simulation
Abstract: To support equipment development demonstration of the army combined arms in all-domains weapon system-of-systems, an evaluate method of weapon system-of-systems contribution based on critical capability is studied. The critical capability of the army combined arms in all-domains weapon system-of-systems is analyzed based on the operational mission. A specified scenario of the army combined arms in all-domains weapon system-of-systems is given and the simulation system is constructed. The evaluation index systems and computation model of efficiency of the army combined arms in all-domains weapon system-of-systems are established under the specified scenario. The evaluation result can support the development demonstration …
Research On Task Allocation Method Of Unmanned Aerial Vehicle Cluster Network, Rugen Wang, Weimin Li, Yonglan Liu, Jinsong Liu
Research On Task Allocation Method Of Unmanned Aerial Vehicle Cluster Network, Rugen Wang, Weimin Li, Yonglan Liu, Jinsong Liu
Journal of System Simulation
Abstract: The cluster network is one of the typical multi unmanned aerial vehicle（UAV）cooperative engagement mode. Task allocation is the basic premise making use of combat effectiveness of the cluster network. Aiming at this problem, the model and algorithm of task allocation are put forward. Task allocation problem of the cluster network and hierarchical structure of task allocation are analyzed. Task allocation model of the cluster network is built via the idea of hierarchy analysis. Task allocation algorithm of the cluster network based on PSO-ICWPA is put forward combining the advantage of intelligent optimization algorithm. Simulated analysis of task allocation model …
Construction And Application Of Low Altitude Multi-Path Simulation System Based On Volume Distributive Target Simulation, Xiaolei Wang, Baiting Liu, Chaolei Wang, Zhaowei Yang, Yuhui Tao
Construction And Application Of Low Altitude Multi-Path Simulation System Based On Volume Distributive Target Simulation, Xiaolei Wang, Baiting Liu, Chaolei Wang, Zhaowei Yang, Yuhui Tao
Journal of System Simulation
Abstract: With the continuous development of broadband high-resolution radar technology, the existing simulation technology cannot meet the needs of complex RF target and low altitude multi-path simulation with multi scattering center characteristics. The paper takes broadband high-resolution RF imaging guidance system as application background. A method for constructing a low altitude multi-path semi-physical simulation system based on volume distributive target simulation is put forward. The RF complex volume distributive target control model and low altitude multi-path simulation control model are developed. A hardware-in-the-loop system with low altitude multi-path simulation is constructed. The experimental results show that the simulation model …
Modeling And Simulation Of Pem Fuel Cell / Battery Hybrid Vehicle, Guizhi Sun, Sam Park, Zhongling Lin
Modeling And Simulation Of Pem Fuel Cell / Battery Hybrid Vehicle, Guizhi Sun, Sam Park, Zhongling Lin
Journal of System Simulation
Abstract: This paper describes modeling of a hybrid power system that supplies energy to an electric vehicle based on a hybrid system that uses a proton exchange membrane (PEM) fuel cell as a primary energy source and a battery pack as an ancillary energy storage system. A threshold approach has been employed for power control. When the power required by the vehicle exceeds a threshold, the battery works with the fuel cell to satisfy the dynamic response of vehicle. Otherwise the fuel cell works alone with regenerative braking enabling recharging of battery capacity. The proposed model has been simulated and …
Prediction Model Of Coke Quality Based On De-Bp Neural Network, Wenhua Tao, Zhengbo Yuan
Prediction Model Of Coke Quality Based On De-Bp Neural Network, Wenhua Tao, Zhengbo Yuan
Journal of System Simulation
Abstract: The quality of coke has a great effect on the furnace process. In order to solve the problem of large amount of calculation and inspection of coke quality prediction linear method, the coke quality prediction model based on DE-BP neural network is established on the basis of analyzing the factors affecting coke quality, which uses principal component analysis method to determine the parameters of the input vector with the coal and coke ash quality indicators Ad, sulfur Std, crushing strength M40, abrasion resistance M10 as the output vector prediction. The result of …
Numerical Study On Energy Absorption Mechanism Of Sandwich Plates Under Blast Loading, Jinlei Mu, Shaosong Min, Peng Fei
Numerical Study On Energy Absorption Mechanism Of Sandwich Plates Under Blast Loading, Jinlei Mu, Shaosong Min, Peng Fei
Journal of System Simulation
Abstract: In order to study the anti-explosion ability and energy absorption mechanism of the sandwich plates under blast loading, the FEM software Abaqus/Explict is used to simulate the response process of the solid plate and the sandwich plate. The solid plate is modeled with shell elements and continuum elements respectively. The results show the elements type has little effect on the results. During the same condition the deformation of the front plate is bigger than the solid plate, while the deformation of the back plate is smaller than the solid plate. The external force work mainly converses the kinetic energy …
Low-Rank Sparse Joint Representation For Moving Object Detection In Video, Yang Lei, Pang Fang, Huosheng Hu
Low-Rank Sparse Joint Representation For Moving Object Detection In Video, Yang Lei, Pang Fang, Huosheng Hu
Journal of System Simulation
Abstract: For the video sequences with fixed cameras, it is a reasonable assumption that the fixed background has low-rank characteristic, and the dynamic foreground has sparse characteristic. A new motion detection method based on low-rank and sparse joint representation is proposed in this paper. The ideas of the proposed method are described as follows: The noise of video sequence is removed by image preprocessing. The optical flow between continuous video sequences is estimated, which is used to generate a binary motion mask as a movement weight matrix. An optimization model with low-rank background and sparse foreground is established based …
Uncalibrated Visual Servoing Based On Kalman Filter Optimized By Spsa, Jinqiang Zhang, Xianxia Zhang
Uncalibrated Visual Servoing Based On Kalman Filter Optimized By Spsa, Jinqiang Zhang, Xianxia Zhang
Journal of System Simulation
Abstract: Considering the problem of robot uncalibrated visual servoing, this paper presents a method for online estimation of image Jacobian matrix based on Kalman filter optimized by simultaneous perturbation stochastic approximation algorithm. This method takes the robot image Jacobian matrix as the system state, and uses Kalman filter to observe the system state. In order to improve the performance of the filter, the simultaneous perturbation stochastic approximation algorithm is used to optimize the filter parameters. This method is used to estimate the image Jacobian matrix and to design the control strategy, which can avoid complicated system calibration process. The simulation …
Real-Time Reconstruction And Simulation Of Police Dog Posture Based On Multi-Sensor Data Vest, Chaozheng Zhu, He Ming, Yang Sheng, Yang Cheng, Zhenhua Song
Real-Time Reconstruction And Simulation Of Police Dog Posture Based On Multi-Sensor Data Vest, Chaozheng Zhu, He Ming, Yang Sheng, Yang Cheng, Zhenhua Song
Journal of System Simulation
Abstract: Real-time police dog posture reconstruction provides an intelligent, convenient and over-the-horizon interactive way for police on duty with dogs. For the biological movement characteristics of police dogs, a new multi-sensor dog data vest was designed and implemented. Based on multiple small size and low power consumption sensors, a new police dog motion fusion method was proposed to capture the different posture data of police dogs, including standing, sitting and prone position, etc. For frequent jitter of police dogs, this paper proposed a method of dog posture reconstruction based on multi-sensor data vest, and introduced an improved kernel function ELM …
Penetrating Capability Of Different Annular Shaped Charge Warhead, Tan Bo, Hongjie Liu, Run Miao, Zeng Liang
Penetrating Capability Of Different Annular Shaped Charge Warhead, Tan Bo, Hongjie Liu, Run Miao, Zeng Liang
Journal of System Simulation
Abstract: On the basis of the existing missile warhead, an annular shaped charge is added in the front of warhead without changing the size and increasing the weight of the warhead. ANSYS/LS-DYNA is used to simulate the whole process of the formation of annular jet and penetration of a double target and analyze the movement characteristics of two kinds of different annular jet in the air. The target damage effect is acquired. The calculation results show that the difference of the penetration ability on the double layer target of jet between center -ball shaped charge and that of the hollow …
Simulation Of Blade Erosion Of Variable-Pitch Axial Flow Fan, Chunxi Li, Zhang Dan, Xuemin Ye
Simulation Of Blade Erosion Of Variable-Pitch Axial Flow Fan, Chunxi Li, Zhang Dan, Xuemin Ye
Journal of System Simulation
Abstract: Affected by the performance of dust precipitators, significant differences of blade erosion regimes and erosion rates in induced draft fans are exhibited due to various particle diameters and concentrations. A 3D numerical simulation on a single-stage axial fan is carried out using Fluent to investigate the blade erosion regimes. The important features including particle trajectories under different particle diameters, erosion pattern and particle mass concentration distribution on the pressure and suction surfaces are examined, and the effect of particle mass concentration on erosion rate is analyzed. The results show that the erosion regimes are mainly affected by particle diameter. …
Characteristic Analysis Of Tri-Stable Stochastic Resonance With Levy Noise, Lifang He, Yingying Cui, Guoquan Li, Jinzhao Lin
Characteristic Analysis Of Tri-Stable Stochastic Resonance With Levy Noise, Lifang He, Yingying Cui, Guoquan Li, Jinzhao Lin
Journal of System Simulation
Abstract: The characteristic analysis of tri-stable stochastic resonance with Levy noise is analyzed deeply with Levy noise being combined with a tri-stable stochastic resonance system and average signal-to-noise ratio gain being used as index. The effect of tri-stable system parameters w, a, b and Levy noise intensity amplification factor D on the resonant output is explored with different Levy noise. Results show that for different distribution of Levy noise, the stochastic resonance phenomenon can be induced by tuning the system parameters. The parameter intervals which can induce stochastic resonances are approximately equal. Moreover, by adjusting the intensity …
Network Mode And Economy Analysis Of Photovoltaic-Battery System In Microgrid, Weiqing Sun, Liu Tong, Liu Bo, Youjia Wang
Network Mode And Economy Analysis Of Photovoltaic-Battery System In Microgrid, Weiqing Sun, Liu Tong, Liu Bo, Youjia Wang
Journal of System Simulation
Abstract: Due to its various power sources, flexible operation modes and ability of making full use of distributed energy resources, microgrid has received broad attention. Focusing on the two different network modes of photovoltaic-battery system (PVBS), the power flow distribution of photovoltaic-battery hybrid system (PVBHS) and photovoltaic-battery integrated system (PVBIS) under different operation conditions are analyzed separately and the corresponding operational economy calculation model is proposed. Using the life cycle cost (LCC) analysis method, the economy of PVBHS and PVBIS is compared. A 6-bus microgrid lab system and the IEEE 33-bus test system are taken as the study case. Results …
Complete Coverage Belief Function Path Planning Algorithm Of Autonomous Underwater Vehiclebased On Behavior Strategy, Wenyang Gan, Daqi Zhu
Complete Coverage Belief Function Path Planning Algorithm Of Autonomous Underwater Vehiclebased On Behavior Strategy, Wenyang Gan, Daqi Zhu
Journal of System Simulation
Abstract: For the complete coverage path planning of autonomous underwater vehicle (AUV), a complete coverage belief function path planning algorithm based on behavior strategy is proposed by introducing the behavior strategy and using the concept of map belief function, which can make AUV accomplish the complete coverage and avoid obstacles automatically. The grid belief function is constructed based on environmental information, using different function values to distinguish between the obstacle, the covered and the uncovered grid. AUV selects the next navigation position by path planning strategy. Next navigation position is selected by behavior strategy if AUV navigates to the …
Gradient Descent Self-Tuning Control Of Flexible Space Manipulator After Capturing Operation, Cheng Jing, Chen Li
Gradient Descent Self-Tuning Control Of Flexible Space Manipulator After Capturing Operation, Cheng Jing, Chen Li
Journal of System Simulation
Abstract: The flexible vibration is generated after all-flexible space manipulator capturing a satellite, and the collision leads to unsteadiness of system. For the unstable composite system, the self-turning control algorithm based on hybrid trajectory is designed in this paper. The theory of gradient descent is used for parameter adaptive rate design to realize the real time adjustment of the PID control parameters. A supervised controller is designed through Lyapunov function to generate the stability and H∞ tracking characteristic of the system. The hybrid trajectory is generated based on the concept of virtual force, which is used to accomplish …
Key Frame Extraction For Slam Based On Spatio-Temporal Slices, Xinliang Zhang, Li Yang, Yunji Zhao
Key Frame Extraction For Slam Based On Spatio-Temporal Slices, Xinliang Zhang, Li Yang, Yunji Zhao
Journal of System Simulation
Abstract: To deal with the data redundancy and computational complexity of the mobile robot 3D visual SLAM (simultaneous localization and mapping), a key frame extraction technique based on spatio-temporal slices is proposed. Based on the analysis of the texture characteristics of the spatio-temporal slices, it yields that the motion state of the image acquisition device can be represented by the slope change of the texture. The similarity degree between two adjacent slices is measured to find out the key frame by use of the nearest neighbor pixel-matching algorithm, which can accurately describe the motion state of the device …