The purposes of the present invention are: to build an evaluation model which enables subjective evaluation values to be estimated from brain wave feature values; and to use the evaluation model to enable evaluation data which does not diverge from subjective evaluation results to be acquired on the basis of objective brain wave signals. Stimuli are presented to a subject, and an evaluation model is built which indicates the relationship between brain wave feature values of the subject and subjective evaluation values of the subject with respect to the stimuli. Images of different image qualities are displayed alternately with a reference image on a display unit, i.e. a stimulus presentation unit, brain wave feature values of the subject observing the display images, said brain wave feature values corresponding to the image qualities, and subjective evaluation values corresponding to the image qualities are acquired, and machine learning having, as input data, the brain wave feature values and the subjective evaluation values, is used to build an image quality evaluation model which enables the subjective evaluation values to be estimated from the brain wave feature values.
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM