Fecha de publicación: -- Fuente: WIPO "tomato" To measure the sizes of fruits with high accuracy. An information processing device includes: an acquisition unit configured to acquire a two dimensional image of a fruit of a plant captured by an imaging unit configured to capture an image of the fruit, and distance information indicating a distance between the fruit and the imaging unit; an extraction unit configured to extract an outline of the fruit in the two dimensional image; a computing unit configured to fit two ellipses along different portions of the outline of the fruit, and compute sizes and positions of two spheres based on the distance information and the two ellipses; and an estimation unit configured to estimate a three dimensional shape of the fruit so as to be along at least a part of a surface of each of the two spheres based on the sizes and positions of the two spheres.