/code> - Query set of descriptors.</dd>
<dd><code>matches</code> - Matches. Each matches[i] is k or less matches for the same query descriptor.</dd>
<dd><code>k</code> - Count of best matches found per each query descriptor or less if a query descriptor has
     less than k possible matches in total.
     descriptors and stored train descriptors from the i-th image trainDescCollection[i].
     false, the matches vector has the same size as queryDescriptors rows. If compactResult is true,
     the matches ve