Suppose we match descriptors from a query set against a database of descriptors extracted from several images.
Our system is supposed to be implemented correctly, and that we perform a one-way match .

Among the following propositions, check the ones which are true.

Question

Suppose we  match     descriptors from a  query set     against a  database of descriptors     extracted from several images. 
 Our system is supposed to be implemented correctly, and that we perform a  one-way match . 
 
 Among the following propositions, check the ones which are true.

Accepted Answer

For several different descriptors    we may have the same matching descriptor   .

Accepted Answer

For each descriptor    we obtain a matching descriptor   .

Answer

For a given match   , the distance between the two descriptors is always close to zero.

Answer

For each descriptor    we obtain a matching descriptor   .

Crowdly

Suppose we match descriptors from a query set against a database of ...

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