1. An information processing apparatus comprising: a two-dimensional orthogonal transform coding data acquisition unit for sequentially acquiring two-dimensional orthogonal transform coding data acquired by transforming three-dimensional orthogonal transform coding data generated from a plurality of images; a two-dimensional orthogonal transform coefficient data generation unit for generating a plurality of pieces of two-dimensional orthogonal transform coefficient data using the plurality of pieces of acquired two-dimensional orthogonal transform coding data; and a three-dimensional transformation unit for encoding three-dimensional orthogonal transform coefficient data acquired by transforming the plurality of pieces of generated two-dimensional orthogonal transform coefficient data.