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Generalized Weiszfeld algorithms for Lq optimization

Aftab, Khurrum; Hartley, Richard; Trumpf, Jochen


In many computer vision applications, a desired model of some type is computed by minimizing a cost function based on several measurements. Typically, one may compute the model that minimizes the L₂ cost, that is the sum of squares of measurement errors with respect to the model. However, the Lq solution which minimizes the sum of the qth power of errors usually gives more robust results in the presence of outliers for some values of q, for example, q = 1. The Weiszfeld algorithm is a classic...[Show more]

CollectionsANU Research Publications
Date published: 2015-03-03
Type: Journal article
Source: IEEE Transactions on Pattern Analysis and Machine Intelligence
DOI: 10.1109/TPAMI.2014.2353625


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