NC State
H.W. Kropholler, B. Clarke and J. Gorres. Investigating paper structure using image analysis. In The role of fundamental research in paper making, Trans. of the VIIth Fund. Res. Symp. Cambridge, 1981, (Fundamental Research Committee, ed.), pp 767–776, FRC, Manchester, 2018.


Much has been done in studies of the light and beta-ray images of paper for formation and Mass Density Distribution respectively. This paper presents the comparison of the images obtained by the two methods using random data analysis techniques, such as filter theory, auto-correlation functions, transfer functions and coherence. Only objective measurements will be used so that visual optical illusions will not confuse the results. Types of paper to be studied will include calendered and uncalendered papers.

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