传感器与微系统
傳感器與微繫統
전감기여미계통
TRANSDUCER AND MICROSYSTEM TECHNOLOGY
2015年
8期
142-144,148
,共4页
侯良科%杨俊刚%邓新蒲%吴京
侯良科%楊俊剛%鄧新蒲%吳京
후량과%양준강%산신포%오경
红外焦平面阵列%图像配准%非均匀校正%运动目标
紅外焦平麵陣列%圖像配準%非均勻校正%運動目標
홍외초평면진렬%도상배준%비균균교정%운동목표
infrared focal plane arrays%image registration%nonuniformity correction%moving objects
通过分析运动目标对基于图像配准的非均匀校正算法校正效果的影响,基于相邻帧之间运动目标辐射强度不变的假设,提出含运动目标的红外图像非均匀校正算法。通过临近帧补全运动目标遮挡的场景,消除运动目标的影响,进行非均匀校正得到场景校正帧,再利用运动目标的辐射信息对各帧运动目标进行非均匀校正,最终得到全图校正帧。仿真和实测红外图像校正实验表明:算法能够很好地解决含运动目标的红外序列图像的非均匀校正问题。
通過分析運動目標對基于圖像配準的非均勻校正算法校正效果的影響,基于相鄰幀之間運動目標輻射彊度不變的假設,提齣含運動目標的紅外圖像非均勻校正算法。通過臨近幀補全運動目標遮擋的場景,消除運動目標的影響,進行非均勻校正得到場景校正幀,再利用運動目標的輻射信息對各幀運動目標進行非均勻校正,最終得到全圖校正幀。倣真和實測紅外圖像校正實驗錶明:算法能夠很好地解決含運動目標的紅外序列圖像的非均勻校正問題。
통과분석운동목표대기우도상배준적비균균교정산법교정효과적영향,기우상린정지간운동목표복사강도불변적가설,제출함운동목표적홍외도상비균균교정산법。통과림근정보전운동목표차당적장경,소제운동목표적영향,진행비균균교정득도장경교정정,재이용운동목표적복사신식대각정운동목표진행비균균교정,최종득도전도교정정。방진화실측홍외도상교정실험표명:산법능구흔호지해결함운동목표적홍외서렬도상적비균균교정문제。
By analyzing influence of moving objects on nonuniformity correction algorithm based on image registration,a nonuniformity correction algorithm for infrared image with moving objects is proposed based on assume that radiance of moving objects,which are in adjoining two frames,is stable. Influence of moving objects can be eliminated through replacing the radiance of the objects in the last frame with that of the same location in current frame. Thus,the scene corrected frame can be calculated by nonuniformity correction algorithm based on image registration. Then,the final corrected frame can be obtained through correcting the radiance of the moving objects. The tests with synthetic and true infrared scene sequences indicate that the proposed algorithm can solve the problem of nonuniformity correction for infrared image with moving objects efficiently.