arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.01505cs.CVcs.IRcs.LG
收藏

一种基于深度视觉特征的快速内容图像检索方法

A Fast Content-Based Image Retrieval Method Using Deep Visual Features

Tokushima University(德岛大学)

Hiroki Tanioka

AI总结:

针对现有图像检索系统主存存索引限制大数据应用的问题,提出基于Elasticsearch预存L2范数的余弦相似度快速计算法,经ImageNet和VGG-16验证兼具效性与高效性。

摘要:

当今,文档分析、医学图像分析等领域需要快速且可扩展的基于视觉特征的内容图像检索技术。卷积神经网络(CNN)激活值作为特征在该领域表现出色,输出层使用softmax函数的深度卷积表示也属于视觉特征的一种。但几乎所有图像检索系统为保证高响应速度,都将视觉特征索引存储在主存中,这限制了其在大数据场景下的适用性。本文提出一种基于Elasticsearch预索引L2范数的余弦相似度快速计算方法,采用ImageNet数据集和VGG-16预训练模型进行评估,结果验证了所提方法的有效性与高效性。

英文摘要:

Fast and scalable Content-Based Image Retrieval using visual features is required for document analysis, Medical image analysis, etc. in the present age. Convolutional Neural Network (CNN) activations as features achieved their outstanding performance in this area. Deep Convolutional representations using the softmax function in the output layer are also ones among visual features. However, almost all the image retrieval systems hold their index of visual features on main memory in order to high responsiveness, limiting their applicability for big data applications. In this paper, we propose a fast calculation method of cosine similarity with L2 norm indexed in advance on Elasticsearch. We evaluate our approach with ImageNet Dataset and VGG-16 pre-trained model. The evaluation results show the effectiveness and efficiency of our proposed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑