Calculation apparatus for amount of characteristic and discrimination apparatus

A discrimination apparatus that discriminates a class of input data, comprising:

• a buffer for holding a portion of the input data;
• a memory, having a plurality of banks, for holding calculation results of a histogram;
• a generation unit configured to generate a table in which a position of a target data on the buffer of which an amount of characteristic is to be calculated corresponds to a position on the memory to which a weight coefficient corresponding to a category of the calculated amount of characteristic is added;
• a vote unit configured to determine the amount of characteristic of the target data and adds a value to the weight coefficient of a position on the memory shown on the table corresponding to the category of the determined amount of characteristic;
• and
• a calculation part that determines a discrimination result from the weight coefficient determined with respect to the input data and the amount of characteristic of each category.