研究成果

学術論文誌

  • The Optimal n-out-of-n Visual Secret Sharing Scheme for Gray-Scale Images
    著者
    M. Iwamoto and H. Yamamoto
    雑誌名
    IEICE Transactions on Fundamentals
    E85–A
    10
    ページ
    2238–2247
    出版社
    IEICE
    発行年
    2021
    Abstract

    In this paper, a method is proposed to construct an n-out-of-n visual secret sharing scheme for gray-scale images, for short an (n, n)-VSS-GS scheme, which is optimal in the sense of contrast and pixel expansion, i.e., resolution. It is shown that any (n, n)-VSS-GS scheme can be constructed based on the so- called polynomial representation of basis matrices treated in (15), (16). Furthermore, it is proved that such construction can attain the optimal (n, n)-VSS-GS scheme.