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1.中国科学院 长春光学精密机械与物理研究所,吉林 长春 130033
2.中国科学院大学,北京 100049
[ "陈玺 (1997-),男,河南南阳人,硕士研究生,2019年于西北农林科技大学获得工学学士学位,主要从事目标检测、模式识别、机器视觉等方面的研究。E-mail: 1695146394@qq.com" ]
[ "何斌 (1961-),男,吉林长春人,博士,研究员,1990年于北京理工大学获得工学博士学位,2001年中国科学院长春光学精密机械与物理研究所获得理学博士学位,主要从事遥感图像压缩处理、卫星成像技术方面的研究。E-mail: Hbemail@163.com" ]
收稿日期:2021-08-16,
修回日期:2021-10-19,
纸质出版日期:2022-03
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陈玺, 何斌, 龙勇机, 等. 复杂海背景下的自适应舰船目标检测[J]. 液晶与显示, 2022,37(3):405-414.
Xi CHEN, Bin HE, Yong-ji LONG, et al. Adaptive ship target detection in complex background[J]. Chinese journal of liquid crystals and displays, 2022, 37(3): 405-414.
陈玺, 何斌, 龙勇机, 等. 复杂海背景下的自适应舰船目标检测[J]. 液晶与显示, 2022,37(3):405-414. DOI: 10.37188/CJLCD.2021-0219.
Xi CHEN, Bin HE, Yong-ji LONG, et al. Adaptive ship target detection in complex background[J]. Chinese journal of liquid crystals and displays, 2022, 37(3): 405-414. DOI: 10.37188/CJLCD.2021-0219.
光学遥感图像海面舰船目标检测易受云雾、海岛、海杂波、阴影等多种复杂因素的干扰。同时,由于卫星遥感图像的幅宽较大,若需要满足实时检测和硬件移植的需求,还要考虑算法的计算量和可移植性。鉴于实际工程的需要,本文提出了一种基于视觉显著性适用于复杂背景下的自适应舰船目标快速定位与检测方法。本算法首先基于图像梯度自适应获取全局最优尺度,通过谱残差显著性模型获得全局显著性区域。对于显著区域局部存在全局阈值分割效果不佳的区域(称为复杂区域),本文通过设计轮廓等形状特征来筛选出局部复杂区域,并对其进一步计算显著图,之后将处理结果与原显著图进行融合,获取最终的疑似区域提取结果。最后使用支持向量机对候选区域进行进一步判别。结果表明,本文算法可以有效检测出复杂背景下不同尺寸和方向的舰船目标区域,算法检测正确率为91.4%,召回率为91.2%,优于大多数同类算法,接近深度学习算法精度。同时在算法体量上,本文算法的计算量和参数量远远低于大多数深度学习框架,更适合硬件移植,同时算法的迁移性更强,易于修改和维护。
The optical remote sensing image sea surface ship target detection is susceptible to cloud
island
sea clutter
shadow and other complex factors interference. At the same time
due to the large width of satellite remote sensing images
if the real-time detection and hardware transplantation needs to be met
the amount of computation and portability of the algorithm should be considered. In order to meet the needs of practical engineering
this paper proposes an adaptive fast ship target location and detection method based on visual saliency under complex background. Firstly
the algorithm adaptively obtains the global optimal scale based on image gradient
and obtains the global significance region through the spectral residual significance model. For the regions with poor segmentation effect due to global threshold in significant regions (Complex regions)
the local complex regions are screened out by designing contour and other shape features
and the saliency map is further calculated. Then
the processing results are fused with the original significance map to obtain the final extraction results of suspected regions. Finally
the candidate regions are further distinguished using support vector machine. The results show that the proposed algorithm can effectively detect ship target areas with different sizes and directions under complex background
and the detection accuracy of the algorithm is 91.4% and the recall rate is 91.2%
which is better than most of the similar algorithms and close to the accuracy of the deep learning algorithm. At the same time
in terms of algorithm volume
the calculation amount and the number of parameters of the algorithm in this paper are far lower than those of most deep learning frameworks
which is more suitable for hardware transplantation. Meanwhile
the algorithm has stronger mobility and is easy to modify and maintain.
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