火力与指挥控制
火力與指揮控製
화력여지휘공제
FIRE CONTROL & COMMAND CONTROL
2010年
9期
80-83
,共4页
活动轮廓模型%粒子滤波%部分遮挡%目标跟踪
活動輪廓模型%粒子濾波%部分遮擋%目標跟蹤
활동륜곽모형%입자려파%부분차당%목표근종
geometric active contours%particle filtering%occlusion detection%object tracking
跟踪变形目标包括假定目标的全局运动和时间方程的局部变形.粒子滤波算法依靠参数化法选择,但是不能处理曲线的拓扑变化.活动轮廓模型是独立参数化,可以比较好地适应拓扑变化.基于上面两个方法的局限性,将上述两种方法相结合,运用于变形目标的跟踪.实验结果证明,该方法有很强的鲁棒性,对部分遮挡的物体有很强的适应性,证明了该方法的有效性.
跟蹤變形目標包括假定目標的全跼運動和時間方程的跼部變形.粒子濾波算法依靠參數化法選擇,但是不能處理麯線的拓撲變化.活動輪廓模型是獨立參數化,可以比較好地適應拓撲變化.基于上麵兩箇方法的跼限性,將上述兩種方法相結閤,運用于變形目標的跟蹤.實驗結果證明,該方法有很彊的魯棒性,對部分遮擋的物體有很彊的適應性,證明瞭該方法的有效性.
근종변형목표포괄가정목표적전국운동화시간방정적국부변형.입자려파산법의고삼수화법선택,단시불능처리곡선적탁복변화.활동륜곽모형시독립삼수화,가이비교호지괄응탁복변화.기우상면량개방법적국한성,장상술량충방법상결합,운용우변형목표적근종.실험결과증명,해방법유흔강적로봉성,대부분차당적물체유흔강적괄응성,증명료해방법적유효성.
Tracking deforming objects involves estimating the global motion of the object and its local deformations as a function of time. Tracking algorithms using particle filtering is dependent on the chosen parametrization and cannot process changes in curve topology. Geometric active contours which is paramaetrization independent and allow for changes in topology is adopted. A particle filtering algorithm in the geometric active contour framework is formulated that can be used for tracking moving and deforming objects. The experimental results show that the algorithm is computationally efficient and robust to changes in topology, patial occlusion and interactions of non-rigid objects.