激光与红外
激光與紅外
격광여홍외
LASER & INFRARED
2014年
9期
1060-1064
,共5页
陈晓斯%程正东%樊祥%朱斌%丁磊
陳曉斯%程正東%樊祥%硃斌%丁磊
진효사%정정동%번상%주빈%정뢰
城市防空%红外小目标检测%k-最近邻%核方法%距离加权
城市防空%紅外小目標檢測%k-最近鄰%覈方法%距離加權
성시방공%홍외소목표검측%k-최근린%핵방법%거리가권
urban air defense%infrared small target detection%k-nearest neighbor%kernel method%distance weighted
城市复杂背景边缘给空中红外小目标检测带来的非线性、非平稳热辐射信号影响严重。在采用 k-最近邻分类判别决策的基础上,提出了一种基于核距离加权的 k-最近邻红外小目标检测算法。该方法将每个预测窗口内的原始数据核映射到高维空间中进行分类,再对各近邻进行距离加权,遍历图像后得到预测结果。实验结果证明了该方法在抑制背景、增强目标方面都有较好的效果。
城市複雜揹景邊緣給空中紅外小目標檢測帶來的非線性、非平穩熱輻射信號影響嚴重。在採用 k-最近鄰分類判彆決策的基礎上,提齣瞭一種基于覈距離加權的 k-最近鄰紅外小目標檢測算法。該方法將每箇預測窗口內的原始數據覈映射到高維空間中進行分類,再對各近鄰進行距離加權,遍歷圖像後得到預測結果。實驗結果證明瞭該方法在抑製揹景、增彊目標方麵都有較好的效果。
성시복잡배경변연급공중홍외소목표검측대래적비선성、비평은열복사신호영향엄중。재채용 k-최근린분류판별결책적기출상,제출료일충기우핵거리가권적 k-최근린홍외소목표검측산법。해방법장매개예측창구내적원시수거핵영사도고유공간중진행분류,재대각근린진행거리가권,편력도상후득도예측결과。실험결과증명료해방법재억제배경、증강목표방면도유교호적효과。
The obvious nonlinear and non-stable distribution which come from the edge of urban complex background have a great impact on infrared small target detection.By using the k-nearest neighbor discriminant classified deci-sion,an infrared small target detection algorithm based on kernel distance weighted k-nearest neighbor is proposed.The kernel method classifies the raw data of every predicted window by mapping into a high dimensional space,and the distance is weighted for nearest neighbor data.After cropping image,the predicted results can be calculated accu-rately.The experimental results show that the new method has a better performance in suppressing background and enhancing target.