Imaging apparatus, information processing apparatus and method, and computer program therefor

An imaging apparatus includes an imaging unit that captures an image; a recording unit that records the image on a recording medium; a first position estimating unit that estimates a position of the imaging apparatus using a first position estimation technique to generate first position information, and calculates a first evaluation value serving as accuracy evaluation information of the first position information; a second position estimating unit that estimates the position of the imaging apparatus using a second position estimation technique different from the first position estimation technique to generate second position information, and calculates a second evaluation value serving as accuracy evaluation information of the second position information; a position-information obtaining unit that select, from the first and second position information, position information whose evaluation value is higher than the other; and an application executing unit that performs data processing using the selected position information.