PROBLEM TO BE SOLVED: To solve such the problem that one bite amount and mastication frequency reference for each cuisine which may cause aspiration are unknown.SOLUTION: An information processing device recognizes eating behavior such as one bite amount and mastication frequency of a cuisine from a camera image, dynamically creates a reference of one bite amount and mastication frequency for each individual from reference one bite amount for each cuisine and estimates from comparison of actual one bite amount to the created reference to outputs an assignment.SELECTED DRAWING: Figure 3【課題】 誤嚥の原因となる料理ごとの一口量や咀嚼回数基準が分からない。【解決手段】 カメラ映像から料理と一口量や咀嚼回数など食事動作を認識して、料理ごとの標準の１口量から１口量と咀嚼回数の個人ごとの基準を動的に作成して、作成した基準と実際の１口量との比較から課題を推定し出力する。【選択図】 図３
