Statistical Characterization of Morphological Features of Layer-by-Layer Polymer Films by Image Analysis
Abstract:This article presents an image analysis-based approach to the statistical characterization of morphological features in layer-by-layer (LBL) polymer films, which depend on the experimental conditions of fabrication. The method is based on the recently introduced concept of exact dilations. This concept allows the precise determination of all possible parallel contours around any general object and, as a consequence, the respective fully accurate Voronoi partition defined by the objects. With the use of a fast wavefront propagation scheme, such diagrams can be obtained at high speed. The method has been applied to statistically characterize features such as grain size and distribution on LBL polymer films. To do this, the polymer surface is tracked from its highest z values downward to its bottom, and each new connected component is detected as a Voronoi seed. Through determination of equivalent radii of the Voronoi cells, the probability density function characterizing the distribution of the domain radius can then be obtained.
Document Type: Research Article
Publication date: 2003-06-01
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