Input device, element data configuration method, and program

An input device which inputs information corresponding to proximity of an object to an operation plane, the input device comprising:

• a sensor unit configured to detect a degree of proximity of the object in one or more detection regions on the operation plane, generate one or more pieces of detection data corresponding to a result of the detection for each detection region, and generate N pieces of detection data as a whole;
• and
• an element data configuration unit configured to configure, based on the N pieces of detection data, M pieces of element data indicating degrees of proximity of the object in each of M sections which virtually divide the operation plane,
• wherein M is a natural number larger than N,
• each of the M sections has at least one overlapping portion which overlaps with the detection region,
• each of the M pieces of element data is a sum of partial element data distributed to each of the N pieces of detection data in predetermined rates,
• each of the N pieces of detection data is approximated to a sum of the partial element data individually distributed from each of the M pieces of element data in the predetermined rates, and
• the element data configuration unit
• calculates each of temporary values of the N pieces of detection data as sums of the partial element data distributed from each of temporary values of the M pieces of element data in the predetermined rates and repeatedly performs a data configuration process of correcting the temporary values of the M pieces of element data at least twice based on the N predetermined rates set for each of the M pieces of element data so that the calculated temporary values of the N pieces of detection data are approximated to the N pieces of detection data,
• calculates, based on two temporary values obtained by the data configuration process performed twice on each of the M pieces of element data, a coefficient having an absolute value which becomes small as a difference between the two temporary values in each of the element data becomes large, and
• calculates, for each of the M sections, a sum of a value obtained by multiplying a difference between a first temporary value of the element data obtained by the first data configuration process and a second temporary value of the element data obtained by the second data configuration process by the coefficient and the first temporary value as an estimation value of the element data obtained by repeatedly performing the data configuration process.