计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2014年
12期
4380-4385
,共6页
抗遮挡%目标识别%Kalman滤波%多目标跟踪%模板匹配%计算机辅助精子分析
抗遮擋%目標識彆%Kalman濾波%多目標跟蹤%模闆匹配%計算機輔助精子分析
항차당%목표식별%Kalman려파%다목표근종%모판필배%계산궤보조정자분석
anti-occlusion%target recognition%Kalman filter%multi-target tracking%template matching%CASA
为解决计算机辅助精液分析(CASA )系统中原版精子多目标跟踪算法在精子被白细胞或其它精子遮挡时,会产生检测失败和跟踪错误等问题,提出一种改进的抗遮挡算法。根据精子目标的面积和形态特征,判定遮挡的类型和发生期间,利用Kalman滤波对白细胞遮挡的精子进行虚拟定位跟踪,对精子互相遮挡的目标保持特征信息跟踪,在遮挡结束时重新匹配找回目标。实验结果表明,改进的算法能够成功跟踪到遮挡情况下的精子目标运动轨迹,提高了精子多目标跟踪算法的准确性和鲁棒性。
為解決計算機輔助精液分析(CASA )繫統中原版精子多目標跟蹤算法在精子被白細胞或其它精子遮擋時,會產生檢測失敗和跟蹤錯誤等問題,提齣一種改進的抗遮擋算法。根據精子目標的麵積和形態特徵,判定遮擋的類型和髮生期間,利用Kalman濾波對白細胞遮擋的精子進行虛擬定位跟蹤,對精子互相遮擋的目標保持特徵信息跟蹤,在遮擋結束時重新匹配找迴目標。實驗結果錶明,改進的算法能夠成功跟蹤到遮擋情況下的精子目標運動軌跡,提高瞭精子多目標跟蹤算法的準確性和魯棒性。
위해결계산궤보조정액분석(CASA )계통중원판정자다목표근종산법재정자피백세포혹기타정자차당시,회산생검측실패화근종착오등문제,제출일충개진적항차당산법。근거정자목표적면적화형태특정,판정차당적류형화발생기간,이용Kalman려파대백세포차당적정자진행허의정위근종,대정자호상차당적목표보지특정신식근종,재차당결속시중신필배조회목표。실험결과표명,개진적산법능구성공근종도차당정황하적정자목표운동궤적,제고료정자다목표근종산법적준학성화로봉성。
To solve the problems such as detecting failures and tracking errors occurred in the original sperm multi‐target trac‐king algorithm of computer aided sperm analysis (CASA) system when sperm sperms are occluded by white blood cells or other sperms ,an improved anti‐occlusion algorithm was presented .Based on the sperm target’s size and morphological characteristics , the type of occlusion and the occurring period were determined .Then sperms occluded by white cells were tracked with virtual positioning using the Kalman filter ,and sperm targets occluded by each other were tracked with retentive information .Back tar‐gets were matched again at the end of occlusion .Experimental results show that the improved anti‐occlusion algorithm can suc‐cessfully track the sperm targets’ moving trajectories when occlusion occurring ,increasing the accuracy and robustness of sperm multi‐target tracking algorithm .