Report reviews optical image subtraction techniques developed during years 1975 through 1985. Useful in such disciplines as studies of earth resources, meteorology, automatic surveillance, pattern recognition, studies of urban growth, and compression of bandwidth in communication systems. Describes following real-time techniques: source encoding, polarization modulation, pseudocolor image-difference detection, holographic-shear-lens technique, and nonlinear electro-optics. Reported non-real-time image-subtraction techniques are following, all of which involve intensity subtraction: speckle-diffuser encoding, speckle-pattern encoding, halftone-screen encoding,and polarization-shifted carrier encoding. Offers an attractive alternative to digital electronic image subtraction, is faster and treats all parts of images simultaneously.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Optical Image Subtraction


    Contributors:

    Published in:

    Publication date :

    1988-10-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Optical comparator uses holographic subtraction

    Vahey, D. W. / Verber, C. M. | NTRS | 1980


    Image Registration for Digital Subtraction Angiography

    Meijering, E. H. W. / Zuiderveld, K. J. / Viergever, M. A. | British Library Online Contents | 1999


    Directional edge registration for temporal chest image subtraction

    Hui Zhao, / Lo, S.-C.B. / Freedman, M.T. | IEEE | 2001


    Non-parametric image subtraction using grey level scattergrams

    Bromiley, P. A. / Thacker, N. A. / Courtney, P. | British Library Online Contents | 2002


    Background subtraction based on cooccurrence of image variations

    Seki, M. / Wada, T. / Fujiwara, H. et al. | IEEE | 2003