A novel quality assessment for visual secret sharing schemes

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• 作者：Feng Jiang ; Brian King
• 关键词：Visual secret sharing ; Random grid ; Object detection ; Visual quality ; Metric
• 刊名：EURASIP Journal on Information Security
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：2017
• 期：1
• 全文大小：4657KB
• 刊物主题：Signal,Image and Speech Processing; Systems and Data Security; Communications Engineering, Networks; Security Science and Technology;
• 出版者：Springer International Publishing
• ISSN：1687-417X
• 卷排序：2017

文摘

To evaluate the visual quality in visual secret sharing schemes, most of the existing metrics fail to generate fair and uniform quality scores for tested reconstructed images. We propose a new approach to measure the visual quality of the reconstructed image for visual secret sharing schemes. We developed an object detection method in the context of secret sharing, detecting outstanding local features and global object contour. The quality metric is constructed based on the object detection-weight map. The effectiveness of the proposed quality metric is demonstrated by a series of experiments. The experimental results show that our quality metric based on secret object detection outperforms existing metrics. Furthermore, it is straightforward to implement and can be applied to various applications such as performing the security test of the visual secret sharing process.