Patent ID: 7978896

Claim:
A data correction apparatus comprising: a sensitivity correction unit configured to produce first processed data by performing sensitivity correction to first objective data obtained based on correction objective data using non-uniform sensitivity distribution of a sensor for acquiring the correction objective data; and an SNR distribution correcting unit configured to produce pieces of component data each subjected to corresponding weighting depending on an SNR distribution and corresponding filtering having a mutually different intensity using second objective data obtained based on the correction objective data to produce second processed data by compounding the pieces of the component data, wherein said SNR distribution correcting unit is configured to obtain a maximum power and a minimum power of noise on the first processed data after the sensitivity correction using the non-uniform sensitivity distribution, perform the corresponding filtering having the mutually different intensity to the first processed data using each of a filter function for a minimum SNR of which an intensity is determined to optimize an SNR in accordance with the maximum power and a filter function for a maximum SNR of which an intensity is determined to optimize the SNR in accordance with the minimum power and perform weighted addition of two pieces of fourth intermediate component data each produced by the corresponding filtering having the mutually different intensity.