Research Output

Digital image processing of weathered stone for determining the optimum cleaning level of stonework

  In this study, the authors introduced a new image component sampling technique that can be used to evaluate level of cleaning of weathered masonry stone for historic buildings. The proposed technique is based on the Standard Pattern (SP). The images taken from different stages of cleaning are used to setup the SP and empirical model to predict the level of cleaning against the duration of cleaning. With the model and SP, Pollution Density Index (PDI) from the image of a building can be evaluated. An optimum cleaning duration can be calculated for each area base on PDI distribution on the surface of the building. The proposed method has been proved to be effective and easy to implement. It can be applied to different way of cleaning.

  • Date:

    05 July 2012

  • Publication Status:

    Published

  • Library of Congress:

    TA Engineering (General). Civil engineering (General)

  • Dewey Decimal Classification:

    624 Civil engineering

  • Funders:

    Edinburgh Napier Funded

Citation

Humanyun, R., Zhang, H. & Zhang, B. (2012). Digital image processing of weathered stone for determining the optimum cleaning level of stonework. In 14th International Conference and Exhibition on Structural Faults and RepairISBN N/A

Authors

Keywords

Building conservation; Stone cleaning; Image analysis; Stereovision

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