Apparatus for performing filter processing using convolution operation, method of performing filter processing, and medium

A method of performing filter processing on a data array in a processing target block of a predetermined size, comprising:

• determining, in a determination, whether data in a reference region in the processing target block, set in correspondence with the processing target block, are zero values;
• controlling, based on a result of the determination, whether to perform at least some of multiply-accumulate operations of the data and weight coefficients of a filter used for the filter processing in generating a convolution operation result;
• and
• generating a convolution operation result of the data and the weight coefficients at a plurality of positions in the processing target block in accordance with the control.

A non-transitory computer-readable medium storing one or more programs which, when executed by a computer comprising one or more processors and one or more memories, cause the computer to:

• determine, in a determination, whether data in a reference region in the processing target block, set in correspondence with the processing target block, are zero values;
• control, based on a result of the determination, whether to perform at least some of multiply-accumulate operations of the data and weight coefficients of a filter used for the filter processing in generating a convolution operation result;
• and
• generate a convolution operation result of the data and the weight coefficients at a plurality of positions in the processing target block in accordance with the control.