靜止軌道遙感衛(wèi)星海面運(yùn)動艦船快速檢測方法
doi: 10.11999/JEIT141615 cstr: 32379.14.JEIT141615
基金項目:
高分辨率對地觀測系統(tǒng)青年創(chuàng)新基金(GFZX04060103)
Ocean Moving Ship Detection Method for Remote Sensing Satellite in Geostationary Orbit
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摘要: 面向靜止軌道光學(xué)遙感衛(wèi)星，該文提出一種海上運(yùn)動艦船目標(biāo)快速檢測方法。該方法首先利用多結(jié)構(gòu)多尺度形態(tài)學(xué)濾波對海洋背景遙感圖像進(jìn)行背景抑制；然后采用自適應(yīng)閾值分割和自組織聚類獲得候選目標(biāo)；再根據(jù)目標(biāo)運(yùn)動特征，利用靜止軌道衛(wèi)星凝視序列圖像對候選目標(biāo)進(jìn)行多目標(biāo)移動式鄰域判決，剔除虛假目標(biāo)；最后關(guān)聯(lián)艦船目標(biāo)以及融合衛(wèi)星平臺數(shù)據(jù)，可快速計算艦船狀態(tài)等深層次動態(tài)信息。實驗結(jié)果與分析表明，所提方法能有效檢測海洋背景遙感圖像中的多個運(yùn)動艦船目標(biāo)，準(zhǔn)確獲取各個艦船位置、航速、航向、運(yùn)動軌跡等信息，具有算法簡單，目標(biāo)檢測率高、虛警率低，穩(wěn)定性好等優(yōu)點。該方法為我國靜止軌道光學(xué)遙感衛(wèi)星在軌數(shù)據(jù)處理與應(yīng)用提供了技術(shù)支撐。
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關(guān)鍵詞:
- 艦船檢測 /
- 靜止軌道遙感衛(wèi)星 /
- 多運(yùn)動艦船目標(biāo) /
- 運(yùn)動軌跡
Abstract: A moving ship detection method is presented for ocean moving objects detection of remote sensing satellite in geostationary orbit. First, the multi-structural and multiscale element morphological filter is used to suppress background information of oceanic remote sensing images. Then, image segmentation is done by adopting the adaptive threshold algorithm. Accordingly, the connected domains of pre-detection targets are obtained by utilizing self-organized clustering. Finally, real targets from many candidate targets can be obtained by multi-object variable region decision based on moving targets feature. The experiment results and analysis show that the proposed method can detect moving warship targets and the trajectories of moving targets efficiently, and has high detection probability and robustness. This method provides technical support for on-board image processing of remote sensing satellite in geostationary orbit. -
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