Sorting apparatus

A sorting apparatus configured to sort a sorting target advancing in the air by one or more sorting portions, the sorting apparatus comprising:

• an imaging portion configured to acquire two or more pieces of sort-out necessity/unnecessity determination information by imaging the sorting target;
• a determination portion configured to determine whether the sorting target has to be sorted out based on the two or more pieces of sort-out necessity/unnecessity determination information and output a sort-out necessity/unnecessity determination result, which is a result of the determination;
• and
• a sort-out signal setting portion configured to, when one sorting target is determined to have to be sorted out two or more times in two or more of the sort-out necessity/unnecessity determination results respectively based on the two or more pieces of sort-out necessity/unnecessity determination information, set a sort-out actuation signal that contains information for actuating the sorting portion when the sorting target passes through a sorting region based on a combination of the sort-out necessity/unnecessity determination results from a predetermined signal setting table or calculate and set the sort-out actuation signal using a predetermined signal calculation algorithm based on the combination of the sort-out necessity/unnecessity determination results.