OPTICAL METHOD FOR DETERMINING MORPHOLOGICAL PARAMETERS AND PHYSIOLOGICAL PROPERTIES OF TISSUE

摘要

PROBLEM TO BE SOLVED: To provide an optical method for determining morphological parameters of tissue from spectral reflectance measurements of tissue.SOLUTION: The method comprises the steps of: obtaining a reflection image of a lesion; determining a lesion border from the reflected intensity of the lesion image from a visible light channel; and measuring a size of the lesion. The method further comprises the steps of: obtaining a histogram-width, that gives a measure of inhomogeneity of the reflected intensity of the lesion; capturing a relative moment of inertia of the lesion; and determining a center distance representing a physical distance between a geometrical center of the lesion and a center of mass of absorptance. The method also comprises the steps of: determining a fractal dimension of the lesion which describes the complexity of the lesion border; determining an asphericity of the lesion; and determining a relative border length of the lesion.