Convolutional computation device

A convolutional computation device comprising:

• a two-dimensional circulation shift register unit that has a plurality of storage elements arranged two-dimensionally and respectively storing data, cyclically shifts the data among the plurality of storage elements, provides at least one input window in a predetermined area, and selects the data stored in one of the plurality of storage elements disposed in the at least one input window as input data;
• and
• at least one multiplier-accumulator that generates output data by performing a multiply-accumulate operation on the input data input from the two-dimensional circulation shift register unit and weight data from a predetermined filter,
• wherein:
• each storage element of the plurality of storage elements includes a multiplexer and a flip-flop, the flip-flop in each storage element is configured to store data output by the multiplexer in each storage element, the multiplexer in each storage element is directly connected by signal lines to the flip-flops of directly adjacent storage elements of the plurality of storage elements, the directly adjacent storage elements being directly adjacent via signal lines in each of an up direction and a down direction from each storage element and directly adjacent via signal lines in each of a left direction and a right direction from each storage element, and the multiplexer in each storage element is configured to select one data element of the directly adjacent storage elements and output data from the selected one data element.