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基于混合跟踪模型的室内步行人体3D运动估计 被引量:3
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作者 于雪松 赵巍 +1 位作者 刘鹏 唐降龙 《自动化学报》 EI CSCD 北大核心 2010年第6期773-784,共12页
针对步行人体3D运动估计过程中的自遮挡问题,提出了基于混合跟踪模型的粒子滤波算法.首先,利用自遮挡状态检测模型,将步行人体运动划分为四种自遮挡状态;其次,根据混合跟踪模型,针对不同的自遮挡状态,算法采用不同的跟踪模型;最后,为了... 针对步行人体3D运动估计过程中的自遮挡问题,提出了基于混合跟踪模型的粒子滤波算法.首先,利用自遮挡状态检测模型,将步行人体运动划分为四种自遮挡状态;其次,根据混合跟踪模型,针对不同的自遮挡状态,算法采用不同的跟踪模型;最后,为了估计遮挡状态下的人体运动,算法提出了基于M–估计的在线训练方法以训练肢体运动相关系数.经过实验分析,算法对处于自遮挡状态下的人体3D运动估计有着良好的效果,人体3D运动的估计精度得到了提高. 展开更多
关键词 混合跟踪模型 步行人体运动 自遮挡状态检测模型 M-估计 肢体运动相关系数
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Hybrid tracking model and GSLM based neural network for crowd behavior recognition
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作者 Manoj Kumar Charul Bhatnagar 《Journal of Central South University》 SCIE EI CAS CSCD 2017年第9期2071-2081,共11页
Crowd behaviors analysis is the‘state of art’research topic in the field of computer vision which provides applications in video surveillance to crowd safety,event detection,security,etc.Literature presents some of ... Crowd behaviors analysis is the‘state of art’research topic in the field of computer vision which provides applications in video surveillance to crowd safety,event detection,security,etc.Literature presents some of the works related to crowd behavior detection and analysis.In crowd behavior detection,varying density of crowds and motion patterns appears to be complex occlusions for the researchers.This work presents a novel crowd behavior detection system to improve these restrictions.The proposed crowd behavior detection system is developed using hybrid tracking model and integrated features enabled neural network.The object movement and activity in the proposed crowded behavior detection system is assessed using proposed GSLM-based neural network.GSLM based neural network is developed by integrating the gravitational search algorithm with LM algorithm of the neural network to increase the learning process of the network.The performance of the proposed crowd behavior detection system is validated over five different videos and analyzed using accuracy.The experimentation results in the crowd behavior detection with a maximum accuracy of 93%which proves the efficacy of the proposed system in video surveillance with security concerns. 展开更多
关键词 crowd video crowd bohavior TRACKING RECOGNITION neural network gravitational search algorithm
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