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ÎÄÕÂÃû³Æ£ºOptimal pixel expansion of deterministic visual cryptography scheme
DOI£º10.1007/s11042-013-1625-3
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gamefzx(oven1986´ú·¢): ½ð±Ò+10, ¸ÐлӦÖú£¡ 2015-01-02 20:31:16
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Optimal pixel expansion of deterministic visual cryptography scheme
×÷Õß:Fu, ZX (Fu, Zhengxin)[ 1 ] ; Yu, B (Yu, Bin)[ 1 ]
MULTIMEDIA TOOLS AND APPLICATIONS
¾í: 73  ÆÚ: 3  Ò³: 1177-1193
DOI: 10.1007/s11042-013-1625-3
³ö°æÄê: DEC 2014
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The optimal pixel expansion is an important parameter of deterministic visual cryptography scheme (DVCS). There are many researches have been done under different access structures and stacking operations. However, any necessary or sufficient condition has not been found about the optimal pixel expansion. In this paper, we give a necessary condition of the optimal pixel expansion of DVCS for the first time, which is suitable for any access structure and any stacking operation. Furthermore, a pixel expansion optimization algorithm has been designed to improve the existing schemes. It is found that the pixel expansion can be reduced for most DVCS based on XOR operation. Finally, we give some experimental results and comparisons to show the effectiveness of the proposed scheme.
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×÷Õ߹ؼü´Ê:Visual cryptography; Deterministic; Necessary condition; Pixel expansion
KeyWords Plus:SECRET SHARING SCHEMES; CONSTRUCTION
×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Fu, ZX (ͨѶ×÷Õß)
              Zhengzhou Informat Sci & Technol Inst, Dept Comp Sci & Informat Engn, Zhengzhou, Peoples R China.
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              [ 1 ] Zhengzhou Informat Sci & Technol Inst, Dept Comp Sci & Informat Engn, Zhengzhou, Peoples R China
µç×ÓÓʼþµØÖ·:fzx2515@163.com; byu2009@163.com
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National Natural Science Foundation of China        
61070086
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SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Àà±ð / ·ÖÀà
Ñо¿·½Ïò:Computer Science; Engineering
Web of Science Àà±ð:Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods; Engineering, Electrical & Electronic
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ÎÄÏ×ÀàÐÍ:Article
ÓïÖÖ:English
Èë²ØºÅ: WOS:000344744200006
ISSN: 1380-7501
eISSN: 1573-7721
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Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
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IDS ºÅ: AT2EH
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 26
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0
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