As a step towards a local analysis of local image features, the position, peak value, and covariance matrix of an isolated, noise-free multivariate Gaussian are determined in closed form from four ‘observables’, computed by gaussian-weighted averaging first and second powers of (up to second order) partial derivatives of a digitized greyvalue distribution.
CITATION STYLE
Nagel, H. H. (2006). On the concept of a local greyvalue distribution and the adaptive estimation of a structure tensor. In Mathematics and Visualization (Vol. 0, pp. 49–61). Springer Heidelberg. https://doi.org/10.1007/3-540-31272-2_3
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