[1]费宇杰,吴小俊.一种局部聚合描述符和组显著编码相结合的编码方法[J].智能系统学报,2017,12(2):172-178.[doi:10.11992/tis.201602010]
FEI Yujie,WU Xiaojun.A new feature coding algorithm based on the combination of group salient coding and VLAD[J].CAAI Transactions on Intelligent Systems,2017,12(2):172-178.[doi:10.11992/tis.201602010]
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《智能系统学报》[ISSN 1673-4785/CN 23-1538/TP] 卷:
12
期数:
2017年第2期
页码:
172-178
栏目:
学术论文—机器学习
出版日期:
2017-05-05
- Title:
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A new feature coding algorithm based on the combination of group salient coding and VLAD
- 作者:
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费宇杰, 吴小俊
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江南大学 物联网工程学院, 江苏 无锡 214122
- Author(s):
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FEI Yujie, WU Xiaojun
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School of IoT Engineering, Jiangnan University, Wuxi 214122, China
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- 关键词:
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图像分类; 特征编码; 词袋; 局部聚合描述符; 软分配; 显著性
- Keywords:
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image classification; feature coding; bag-of-features; VLAD; soft assignment; saliency
- 分类号:
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TP391
- DOI:
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10.11992/tis.201602010
- 摘要:
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局部聚合描述符(vector of locally aggregated descriptors,VLAD)的特征编码方法在大规模图像检索上取得了较好的效果。但是,VLAD存在硬分配难以准确描述局部特征向量与视觉词汇隶属关系的问题,本文将两种软分配编码与VLAD相结合来增强局部特征向量与视觉词汇的隶属关系。新的编码方法在15 Scenes、Corel 10和UIIC Sports Event数据库上的实验结果表明:1)在VLAD中加入局部软分配能够提高分类准确率,而且对比Fisher编码在分类准确率上也有一定的优越性;2)除了软分配,显著性对提高分类准确率也起到了一定的作用。
- Abstract:
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The vector of locally aggregated descriptors (VLAD) has achieved good results in addressing large-scale image retrieval problems; however, VLAD has a defect in that the relationship between local descriptors and visual words cannot be accurately described using hard assignments. In this paper, we therefore combine two kinds of soft assignment coding methods with VLAD to enhance the relationship between local feature vectors and visual words. We applied our method to 15 scenes from the Corel 10 and UIUC Sports Event datasets, with our experimental results showing that our combined partial soft assignment coding method and VLAD was able to enhance classification accuracy and achieve better classification accuracy than the well-known Fisher Coding approach. In addition to soft assignment, saliency also plays an important role in enhancing classification accuracy.
备注/Memo
收稿日期:2016-3-1;改回日期:。
基金项目:国家自然科学基金项目(61373055, 61672265);江苏省教育厅科技成果产业化推进项目(JH10-28).
作者简介:费宇杰,男,1992年生,硕士研究生,主要研究方向为图像分类、特征编码;吴小俊,男,1967年生,教授,主要研究方向为模式识别,计算机视觉,模糊系统,神经网络,智能系统。
通讯作者:吴小俊. E-mail:xiaojun_wu_jnu@163.com.
更新日期/Last Update:
1900-01-01