基于轨迹的足球检测与跟踪  

Trajectory based ball detection and tracking

作　　者：施乐剑[1] 于俊清[1] 何云峰[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《计算机工程与设计》2007年第19期4692-4694,4761,共4页Computer Engineering and Design

基　　金：湖北省自然科学基金项目(2005ABA265);华为基金(YJCB20050241N)

摘　　要：在足球比赛视频中对足球进行检测和跟踪,如果球与球场线融合或球与球员形成连通区域,则得到球的位置信息将变得非常困难。针对这类问题提出了一种基于轨迹的解决方案。基于维特比算法检测并跟踪球,应用最小二乘法得到球运动轨迹的插值函数,基于所得到的插值函数,剔除维特比算法检测与跟踪球过程中的一些误检,同时补充漏检处的球位置信息。通过实验验证,算法具有较高的准确性。When the ball is merged with field lines or players in soccer video, it＇s really hard to detect the ball, A trajectory based scheme is proposed to solve such problems. First, a Viterbi based algorithm is utilized to detect and track the ball. Then, a group of Interpolation functions calculated using least squares are gotten as the bali＇s trajectory to eliminate the false detection and get the undetected ball positions. Finally, the ball is detected as points on the interpolation functions. The experimental results have verified the effectiveness of the given scheme

关 键 词：检测 跟踪 维特比算法 最小二乘法 运动轨迹 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]