核电子学与探测技术
覈電子學與探測技術
핵전자학여탐측기술
NUCLEAR ELECTRONICS & DETECTION TECHNOLOGY
2014年
10期
1159-1163
,共5页
双边滤波%巴氏距离%目标检测%概率密度
雙邊濾波%巴氏距離%目標檢測%概率密度
쌍변려파%파씨거리%목표검측%개솔밀도
bilateral filter%Bhattacharyya distance%target detection%probability density
为了提高红外小目标的检测精度，采用双边滤波方法去除目标和噪声调整，设置双边滤波的标准差，并模糊化目标和噪声得到背景的估计，得到待选目标区域，通过估计图像的概率密度函数，再根据已有的目标模型与待处理目标区域计算巴氏距离找到最大值，获得目标的准确检测结果。实验表明，该目标检测方法不仅大大提高了检测速度，也提高了小目标的检测精度。
為瞭提高紅外小目標的檢測精度，採用雙邊濾波方法去除目標和譟聲調整，設置雙邊濾波的標準差，併模糊化目標和譟聲得到揹景的估計，得到待選目標區域，通過估計圖像的概率密度函數，再根據已有的目標模型與待處理目標區域計算巴氏距離找到最大值，穫得目標的準確檢測結果。實驗錶明，該目標檢測方法不僅大大提高瞭檢測速度，也提高瞭小目標的檢測精度。
위료제고홍외소목표적검측정도，채용쌍변려파방법거제목표화조성조정，설치쌍변려파적표준차，병모호화목표화조성득도배경적고계，득도대선목표구역，통과고계도상적개솔밀도함수，재근거이유적목표모형여대처리목표구역계산파씨거리조도최대치，획득목표적준학검측결과。실험표명，해목표검측방법불부대대제고료검측속도，야제고료소목표적검측정도。
In order to improve the detection accuracy of small infrared target , the bilateral filter was adopted to remove target and adjust noise .The maximum value which was most likely the target position was found accord-ing to the existing target model and image to be processed to search and calculate Bhattacharyya distance though estimating the probability density function of the image .In this position , the standard deviation of bilateral filter was amplified , and target and noise were to be fuzzy to get the estimate of the background , then finally to get the detection results of the target .The experimental results show that this target detection method not only great -ly improves the detection speed , but also improves the accuracy of detection of small targets .
