Research Article

Nonnegative Matrix Factorizations Performing Object Detection and Localization

Figure 17

Output of the on-line detection phase on a letter envelope image presenting some handwritten digits. Test is made with LNMF after learning the USPS dataset, with 𝑟 = 8 0 and 𝜗 = 2 . 3 𝑒 3 .
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