Finally, the adaptive fusion applied at pixel level, presents many disadvantages:

• a complexity in due to the processes to determine the degree of conflict h between the sources;
• a discontinuity of the behaviour of the operator when occurs a transition between a case where the intersection between the distributions is null and a case where intersection is not null;
• it is not an associative operator: the order of the sources is important if the fusion is carried out by set of two sources, this is not the case with the fusion of all the sources;
• a bad management of the conflict:
• conjunctive fusion if all the sources agree,
• disjunctive fusion otherwise;
• A lot of use of disjunctive fusion because the conflict is badly managed.
  
  

The few advantages of this fusion do not compensate the previous disadvantages:

• use of conjunctive or disjunctive fusions following the degree of agreement between the sources (unanimity reached or not);
• low running time because the operator used are low processing time (min, max, comparison).