Information processing device, information processing method, and information processing program

An information processing method comprising the steps of, by a computer:

• setting exposure time of each of imaging pixels in an imager including a plurality of imaging pixels arrayed two-dimensionally to exposure time corresponding to a convolution coefficient of a first layer of a CNN;
• and
• causing convolution processing to be performed by transferring signal charges from the imaging pixels, which have been exposed, to floating diffusions, wherein
• each of the floating diffusions is shared by a predetermined number of the imaging pixels,
• a conversion efficiency of each of the floating diffusions is set to a conversion efficiency corresponding to a convolution coefficient of a second layer of the CNN, and
• signal charges transferred to a predetermined number of the floating diffusions arrayed two-dimensionally are added up to perform the convolution processing.

A non-transitory computer-readable medium storing an information processing program for causing a computer to function as:

• setting circuitry configured to set exposure time of each of imaging pixels in an imager including a plurality of imaging pixels arrayed two-dimensionally to exposure time corresponding to a convolution coefficient of a first layer of a CNN;
• and
• control circuitry configured to cause convolution processing to be performed by transferring signal charges from the imaging pixels, which have been exposed, to floating diffusions, wherein
• each of the floating diffusions is shared by a predetermined number of the imaging pixels,
• the setting circuitry sets a conversion efficiency of each of the floating diffusions to a conversion efficiency corresponding to a convolution coefficient of a second layer of the CNN, and
• the control circuitry adds up signal charges transferred to a predetermined number of the floating diffusions arrayed two-dimensionally and performs the convolution processing.