DETERMINATION DEVICE, DETERMINATION METHOD AND DETERMINATION PROGRAM

To improve the precision of similarity search.SOLUTION: A determination device includes: an estimating unit that estimates conversion information for converting the position of a feature point of a first similar feature quantity similar to any one of a plurality of second feature quantities of second information in the plurality of first feature quantities of first information to the position of the feature point of a second similar feature quantity similar to the first similar feature quantity in the second feature quantities; and a determining unit that determines whether or not the first information and the second information are similar to each other on the basis of the comparison result between the converted position that is the position of the feature point of the first feature quantity converted by the conversion information and the position of the feature point of the second feature quantity.SELECTED DRAWING: Figure 1 【課題】類似検索の精度を向上させる。【解決手段】判定装置は、第１情報が有する複数の第１特徴量のうち第２情報が有する複数の第２特徴量のいずれかに類似する第１類似特徴量の特徴点の位置を、前記第２特徴量のうち前記第１類似特徴量に類似する第２類似特徴量の特徴点の位置へと変換する変換情報を推定する推定部と、前記第１特徴量の特徴点の位置を前記変換情報により変換した変換位置と、前記第２特徴量の特徴点の位置との比較結果に基づいて、前記第１情報と前記第２情報とが類似するか否かを判定する判定部とを有することを特徴とする。【選択図】図１