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| 1 | QKD-based quantum private query without a failure probability显示文摘In this paper, we present a quantum-key-distribution(QKD)-based quantum private query(QPQ) protocol utilizing single-photon signal of multiple optical pulses. It maintains the advantages of the QKD-based QPQ, i.e., easy to implement and loss tolerant. In addition, different from the situations in the previous QKD-based QPQ protocols, in our protocol, the number of the items an honest user will obtain is always one and the failure probability is always zero. This characteristic not only improves the stability(in the sense that, ignoring the noise and the attack, the protocol would always succeed), but also benefits the privacy of the database(since the database will no more reveal additional secrets to the honest users). Furthermore, for the user's privacy, the proposed protocol is cheat sensitive, and for security of the database, we obtain an upper bound for the leaked information of the database in theory. | LIU Bin GAO Fei HUANG Wei WEN QiaoYan | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，10： | 4 |
| 2 | 基于量子比特相位的彩色图像描述方法及应用显示文摘为解决量子计算机上彩色图像的描述及加密问题,该文提出一种基于量子比特相位旋转的新方法。首先通过将像素灰度值映射为量子比特的相位,将彩色图像描述成一个量子叠加态,其中基态描述像素的位置,而对应的概率幅即为该像素的灰度值。然后基于量子比特的相位旋转,设计了一些简单的图像处理方法。最后提出了一种新的彩色图像加密算法,该算法包括像素位置的置乱和量子比特的旋转两个过程。所提方法可在将来的量子计算机上执行。经典计算机上的仿真结果验证了方法的有效性。 | 李盼池 曹梓崎 | 2017 | 电子与信息学报2017，39，2： | 3 |
| 3 | 模糊形态结构元素的量子态模型显示文摘量子计算作为一种新型的计算理论模型,正逐渐成为信息研究领域关注的焦点。为实现模糊形态学与量子计算模型的有效融合,提出一种基于量子态模型表示模糊结构元素的方法。受量子信号处理理论的启发,用多量子位系统表示模糊结构元素,将隶属度表示为量子态概率。经过量子测量,使得模糊结构元素坍缩为清晰结构元素。结合仿真实例,表明了量子态模型的可行性,以及使用坍缩后结构元素的形态滤波器能有效地滤除噪声,并能很好地保留图像的细节信息。 | 张成斌 王开福 | 2014 | 计算机与现代化2014，，7： | 1 |
| 4 | A Novel Quantum Noise Image Preparation Method显示文摘Quantum noise image has important role in evaluating quantum image quality and testing processing algorithms. A novel preparation method of quantum Gauss noise image is proposed. Furthermore, the experimental simulation proves the efficiency of the method. The research about quantum noise image is of great significance to evaluate and test the schemes for quantum image authentication and secure communication. | Xianhua Song | 2016 | 国际计算机前沿大会会议论文集2016，，1： | 0 |
| 5 | Strategy for quantum image stabilization显示文摘Image stabilization is a process to smooth the unstable motion vector of video sequences to achieve its stabilization. Even though the classical image stabilization techniques seem already very mature so far, similar advances have not been extended to the quantum computing domain. In this study, we explore a novel quantum video framework and make a modest attempt to perform the image stabilization based on it by utilizing the quantum comparator and quantum image translation operations. The proposed method is capable of estimating the camera motion during exposure and compensating for the video jitter caused by the motion. In addition, the quantum properties, i.e., entanglement and parallelism, ensure that the quantum image stabilization is feasible and effective. Finally, a simple experiment to stabilize a four-frame jittered quantum video is implemented using Matlab based on linear algebra with complex vectors as quantum states and unitary matrices as unitary transforms to show the feasibility and merits of this proposal. | Fei YAN Abdullah M. ILIYASUI Huamin YANG Kaoru HIROTA | 2016 | Science China(Information Sciences)2016，59，5： | 0 |
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