南京大学学报(自然科学版) ›› 2019, Vol. 55 ›› Issue (1): 4960.doi: 10.13232/j.cnki.jnju.2019.01.005
孔 颉,孙权森*,纪则轩,刘亚洲
Kong Jie,Sun Quansen*,Ji Zexuan,Liu Yazhou
摘要: 提出一种基于仿射不变离散哈希的遥感图像快速目标检测新方法. 首先使用一种“选择性搜索”的方法生成目标候选框;其次,提出一种基于仿射不变离散哈希(Affine-Invariant Discrete Hashing,AIDH)的目标检测方法,该方法采用具有低存储、高效率优势的监督离散哈希框架,结合仿射不变优化因子,构造仿射不变离散哈希,通过将具有相同语义信息的仿射变换样本约束到相似的二值码空间,实现检测精度的提高;最后采用判别分类器结合非极大值抑制的方法,进一步过滤掉误检目标框,完成目标的精确定位. 实验证明,在NWPU VHR-10数据集下,该方法相比于经典目标检测方法和新的哈希方法,在具备高效性的同时,在精度上也得到了保证.
中图分类号:
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