论文标题
基于内容的图像检索方案，允许使用加密图像和普通图像混合使用的图像检索方案
A Privacy-Preserving Content-Based Image Retrieval Scheme Allowing Mixed Use Of Encrypted And Plain Images
论文作者
论文摘要
在本文中，我们提出了一种新型基于内容的图像检索方案，允许首次混合使用加密图像。在拟议的方案中，图像是通过为加密 - 压缩（ETC）系统开发的块刺激方法对图像进行加密的。加密的图像（称为ETC图像）可以用JPEG以及纯图像压缩。用于拟议检索的图像描述符旨在避免图像加密的效果。结果，使用ETC图像和描述符使我们可以检索加密图像和普通图像。在实验中，即使在普通图像等的混合使用下，提出的方案也与传统检索方法具有相同的性能。
In this paper, we propose a novel content based-image retrieval scheme allowing the mixed use of encrypted and plain images for the first time. In the proposed scheme, images are encrypted by a block-scrambling method developed for encryption-then-compression (EtC) systems. The encrypted images, referred to as EtC images, can be compressed with JPEG, as well as for plain images. Image descriptors used for the proposed retrieval is designed to avoid the effect of image encryption. As a result, the use of EtC images and the descriptors allows us to carry out retrieval of both encrypted images and plain ones. In an experiment, the proposed scheme is demonstrated to have the same performance as conventional retrieval methods with plain images, even under the mixed use of plain images and EtC ones.
