Personal identification method and apparatus, recording medium recording personal identification program, and robot apparatus

Abstract

Abstract Translated from Japanese (57)【要約】 【課題】家庭環境のように照明条件が一定でない環境で も人物識別を可能とする方法及び装置の提供。 【解決手段】画像を取得する映像取得手段と、画像中か ら人間の頭部を検出する頭部検出追跡手段と、検出され た頭部の部分画像中から正面顔画像を取得する正面顔位 置合わせ手段と、正面顔画像を特徴量に変換する顔特徴 抽出手段と、識別辞書を用いて特徴量から人物を識別す る顔識別手段と、識別辞書を保存する識別辞書記憶手段 とを備え、頭部検出追跡手段は、１枚の画像から頭部を 検出する単眼視頭部矩形座標検出手段と、対面距離値と 頭部矩形座標値とから頭部の誤検出を取り除く対面距離 評価手段とを備える。顔識別手段は、線形判別辞書と特 徴データから登録されている人物への類似度を算出する 積和演算手段と、登録されている人物への類似度の最大 値を求める最大類似度人物判定手段と、最大類似度をし きい値処理して他人かどうかを判定するしきい値処理手 段とを備える。 (57) [Summary] [Problem] To provide a method and an apparatus capable of identifying a person even in an environment where lighting conditions are not constant, such as a home environment. Kind Code: A1 A video acquisition unit for acquiring an image, a head detection tracking unit for detecting a human head in an image, and a front face alignment for acquiring a front face image from a partial image of the detected head. Means, a face feature extraction means for converting a frontal face image into a feature quantity, a face identification means for identifying a person from the feature quantity using an identification dictionary, and an identification dictionary storage means for storing the identification dictionary; The detection tracking means includes a monocular vision head rectangular coordinate detecting means for detecting a head from one image, and a facing distance evaluating means for removing erroneous detection of a head from the facing distance value and the head rectangular coordinate value. . The face identification means is a product-sum operation means for calculating a similarity to a registered person from the linear discriminant dictionary and the feature data, and a maximum similarity person determination means for obtaining a maximum value of the similarity to the registered person And threshold processing means for performing threshold processing on the maximum similarity to determine whether or not the user is another person.

Inventors

• 👤 Akira Inoue
• 👤 晃 井上

Bibliographic Details