20. The device of claim 18 , wherein the one or more processors are further configured to, when performing the visual search, apply a normalized bagging kernel to the multi-resolution histogram representation of the multi-resolution query feature descriptor and the multi-resolution target histogram representations to determining a normalized similarity between the multi-resolution histogram representation of the multi-resolution query feature descriptor and the multi-resolution target histogram representations.
20. The device of claim 18 , wherein the one or more processors are further configured to, when performing the visual search, apply a normalized bagging kernel to the multi-resolution histogram representation of the multi-resolution query feature descriptor and the multi-resolution target histogram representations to determining a normalized similarity between the multi-resolution histogram representation of the multi-resolution query feature descriptor and the multi-resolution target histogram representations. 21. The device of claim 20 , wherein the one or more processors are further configured to, when applying the normalized bagging kernel, apply a combination of a plurality of normalized bagging kernels to the multi-resolution histogram representation of the multi-resolution query feature descriptor and the multi-resolution target histogram representations to determine a combination of normalized similarities between the multi-resolution histogram representation of the multi-resolution query feature descriptor and the multi-resolution target histogram representations.