| 摘要 |
Method of detecting chaotic structures in a given medium. It is of the type consisting in: calculating the components of the light intensity gradient vector E at every point of a window F, centered on a point of a block representative of the medium, and it is characterized in that it furthermore consists in summing elementary matrices M for all the points of the window F, diagonalizing said sum matrix A so as to determine its eigenvalues .lambda.1, .lambda.2, .lambda.3, quantifying, at the center of the window, the minimum of the said eigenvalues .lambda.1, .lambda.2, .lambda.3, and with the constraint U T x D = 1, eliminating the contribution of the largest eigenvalue, defining a multidirectional error by integrating it in the plane defined by the eigenvectors corresponding to the remaining eigenvalues, assigning the multidirectional error to the image point on which the window F is centered, and calculating the multidirectional errors assigned to all the image points of the image block.
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