In this paper an efficient procedure for constrained least-squares smoothing for digital contours is presented. It is described by linear operators represented by circulant Toeplitz matrices with integer coefficients which can be efficiently implemented. They allow to calculate several characteristics and invariants related to the corresponding original digitized contour and also to estimate its derivatives and corresponding invariants. The use of the smoothed values and the values of estimated first derivatives obtained by the described procedure for the problem of length estimation of digitized contours is discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    On least-squares digital contour smoothing


    Contributors:
    Glasa, J. (author) / Podhajecky, G. (author)


    Publication date :

    2003-01-01


    Size :

    360267 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    On Least-Squares Digital Contour Smoothing

    Glasa, J. / Podhajecky, G. / IEEE | British Library Conference Proceedings | 2003




    Method of Least Squares

    Zarchan, Paul / Musoff, Howard | AIAA | 2015


    Least squares optimal linearization

    Zhao, Yiyuan | AIAA | 1994