This paper introduces an approach for visual tracking of multi-target with occlusion occurrence. Based on the author's previous work in which the Overlap Coefficient (OC) is used to detect the occlusion, in this p...This paper introduces an approach for visual tracking of multi-target with occlusion occurrence. Based on the author's previous work in which the Overlap Coefficient (OC) is used to detect the occlusion, in this paper a method of combining Bhattacharyya Coefficient (BC) and Kalman filter innovation term is proposed as the criteria for jointly detecting the occlusion occurrence. Fragmentation of target is introduced in order to closely monitor the occlusion development. In the course of occlusion, the Kalman predictor is applied to determine the location of the occluded target, and the criterion for checking the re-appearance of the occluded target is also presented. The proposed approach is put to test on a standard video sequence, suggesting the satisfactory performance in multi-target tracking.展开更多
针对传统Mean shift跟踪算法对空中运动目标跟踪效果不理想的问题,提出了基于Mean shift算法和归一化转动惯量(Normalized moment of inertia,NMI)特征的目标跟踪算法.算法中引入了目标NMI特征,建立了基于虚警概率最小原则和相似度二级...针对传统Mean shift跟踪算法对空中运动目标跟踪效果不理想的问题,提出了基于Mean shift算法和归一化转动惯量(Normalized moment of inertia,NMI)特征的目标跟踪算法.算法中引入了目标NMI特征,建立了基于虚警概率最小原则和相似度二级判决门限的跟踪策略,对目标模型进行更新.同时利用卡尔曼滤波,在目标被遮挡后进行估计预测.实验表明该算法在空中运动目标存在较大形变、被遮挡等情况下,能够进行实时、稳定跟踪.展开更多
基金Supported by the Program for Technology Innovation Team of Ningbo Government (No. 2011B81002)the Ningbo University Science Research Foundation (No.xkl11075)
文摘This paper introduces an approach for visual tracking of multi-target with occlusion occurrence. Based on the author's previous work in which the Overlap Coefficient (OC) is used to detect the occlusion, in this paper a method of combining Bhattacharyya Coefficient (BC) and Kalman filter innovation term is proposed as the criteria for jointly detecting the occlusion occurrence. Fragmentation of target is introduced in order to closely monitor the occlusion development. In the course of occlusion, the Kalman predictor is applied to determine the location of the occluded target, and the criterion for checking the re-appearance of the occluded target is also presented. The proposed approach is put to test on a standard video sequence, suggesting the satisfactory performance in multi-target tracking.
文摘针对传统Mean shift跟踪算法对空中运动目标跟踪效果不理想的问题,提出了基于Mean shift算法和归一化转动惯量(Normalized moment of inertia,NMI)特征的目标跟踪算法.算法中引入了目标NMI特征,建立了基于虚警概率最小原则和相似度二级判决门限的跟踪策略,对目标模型进行更新.同时利用卡尔曼滤波,在目标被遮挡后进行估计预测.实验表明该算法在空中运动目标存在较大形变、被遮挡等情况下,能够进行实时、稳定跟踪.