基于非对称卷积的孪生网络视觉跟踪算法

蒲磊; 魏振华; 侯志强; 冯新喜; 何玉杰

doi:10.11999/JEIT210472

基于非对称卷积的孪生网络视觉跟踪算法

doi: 10.11999/JEIT210472

1.
火箭军工程大学作战保障学院西安 710025
2.
西安邮电大学计算机学院西安 710121
3.
阳光学院人工智能学院福州 350015

基金项目: 国家自然科学基金 (62072370, 62006240)

详细信息

作者简介:
蒲磊：男，1991年生，博士，讲师，研究方向为计算机视觉、目标跟踪

魏振华：男，1983年生，硕士，副教授，研究方向为电子干扰、模式识别

侯志强：男，1973年生，博士，教授，研究方向为图像处理、计算机视觉

冯新喜：男，1964年生，博士，教授，研究方向为信息融合、模式识别

何玉杰：男，1987年生，博士，讲师。研究方向为目标跟踪

通讯作者:
蒲磊　warmstoner@163.com

中图分类号: TN911.73; TP391.4
计量
- 文章访问数: 513
- HTML全文浏览量: 290
- PDF下载量: 76
- 被引次数: 0
出版历程
- 收稿日期: 2021-05-28
- 修回日期: 2022-05-30
- 网络出版日期: 2022-06-13
- 刊出日期: 2022-08-17

Siamese Network Visual Tracking Based on Asymmetric Convolution

1.
Combat Support College, Rocket Force University of Engineering, Xi’an 710025, China
2.
School of Computer Science and Technology, Xian University of Posts and Telecommunications, Xi’an 710121, China
3.
College of Artificial Intelligence, Yango University, Fuzhou 350015, China

Funds: The National Natural Science Foundation of China (62072370, 62006240)

摘要

摘要: 针对孪生网络对旋转变化目标特征表达能力不足的问题，该文提出了基于非对称卷积的孪生网络跟踪算法。首先利用卷积核的可加性构建非对称卷积核组，可以将其应用于任意卷积核大小的已有网络结构。接着在孪生网络跟踪框架下，对AlexNet的卷积模块进行替换，并在训练和跟踪阶段对网络进行分别设计。最后在网络的末端并联地添加3个非对称卷积核，分别经过相关运算后得到3个响应图，进行加权融合后选取最大值即为目标的位置。实验结果表明，相比于SiamFC，在OTB2015数据集上精度提高了8.7%，成功率提高了4.5%。
- 视觉跟踪 /
- 孪生网络 /
- 非对称卷积 /
- 旋转变化
Abstract: In order to solve the problem that the Siamese network can not express the rotating target, a Siamese network tracking algorithm based on asymmetric convolution is proposed. Firstly, asymmetric convolution kernels are constructed, which can be applied to existing networks. Then, under the framework of Siamese network, the convolution module of AlexNet is replaced, and the network is designed separately in the training and tracking stages. Finally, three asymmetric convolution kernels are added in parallel in the last layer of the network, and the maximum value is selected as the target position after the three response maps are weighted fused. The experimental results show that compared with SiamFC, the accuracy and success rate are improved by 8.7% and 4.5% on OTB2015 dataset, respectively.
- Visual tracking /
- Siamese network /
- Asymmetric convolution /
- Rotation

HTML全文

图 1 卷积核可加性示意图

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图 2 训练阶段的卷积核输出形式

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图 3 测试阶段的卷积核输出形式

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图 4 算法流程示意图

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图 5 算法定性分析对比图

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图 6 算法的距离精度曲线图和成功率曲线

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图 7 不同属性下算法的跟踪精度对比曲线

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图 8 不同属性下算法的跟踪成功率对比曲线

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表 1 训练阶段的ACSiam网络结构

卷积层	卷积核	Stride	通道数	模板尺寸	搜索尺寸
			3	127×127	255×255
Conv1	11×11, 1×11, 11×1	2	96	59×59	123×123
Pool1	3×3	2	96	29×29	61×61
Conv2	5×5, 1×5, 5×1	1	256	25×25	57×57
Pool2	3×3	2	256	12×12	28×28
Conv3	3×3, 1×3, 3×1	1	192	10×10	26×26
Conv4	3×3, 1×3, 3×1	1	192	8×8	24×24
Conv5	3×3, 1×3, 3×1，多分支输出	1	128	6×6	22×22

下载: 导出CSV

表 2 跟踪阶段的ACSiam网络结构

卷积层	卷积核	Stride	通道数	模板尺寸	搜索尺寸
			3	127×127	255×255
Conv1	11×11	2	96	59×59	123×123
Pool1	3×3	2	96	29×29	61×61
Conv2	5×5	1	256	25×25	57×57
Pool2	3×3	2	256	12×12	28×28
Conv3	3×3	1	192	10×10	26×26
Conv4	3×3	1	192	8×8	24×24
Conv5	3×3, 1×3, 3×1，多分支输出	1	128	6×6	22×22

下载: 导出CSV

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