APPARATUS, METHOD AND PROGRAM FOR REGISTERING FEATURE AMOUNT

• Main Author: MATSUZAKI KOHEI
• Format: Patent
• Language: English; Japanese
• Published: 02.08.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

PROBLEM TO BE SOLVED: To provide an apparatus for registering a feature amount capable of acquiring a robust feature amount even in a case where there is a view change.SOLUTION: An apparatus 10 for registering a feature amount that determines a registration feature set as a registration object from an input image comprises: a pseudo-query feature generation unit 1 that generates a pseudo-query feature set from the input image and/or one or more processed images obtained by processing the input image; a registration-feature candidate generation unit 2 that generates a registration-feature candidate set; a feature matching unit 31 that carries out matching between each element of the pseudo-query feature set and each element of the registration-feature candidate set; a similarity score calculation unit 32 that determines a similarity score sum to elements of the pseudo-query feature set over each element of the registration-feature candidate set on the basis of a matching result from the feature matching unit 31; and a registration-feature generation unit 33 that determines the registration feature set by determining an element of the registration feature set using the element of the registration-feature candidate set selected based on the determined similarity score sum.SELECTED DRAWING: Figure 1 【課題】ビュー変化がある場合であってもロバストな特徴量を得る。【解決手段】入力画像より登録対象としての登録特徴集合を求める特徴量登録装置10であって、前記入力画像及び／又は当該入力画像を加工して得られる１つ以上の加工画像より疑似クエリ特徴集合を生成する疑似クエリ特徴生成部1と、登録特徴候補集合を生成する登録特徴候補生成部2と、前記疑似クエリ特徴集合の各要素と前記登録特徴候補集合の各要素との間でマッチングを行う特徴マッチング部31と、特徴マッチング部31によるマッチング結果に基づき、登録特徴候補集合の各要素につき、疑似クエリ特徴集合の要素との間の類似度スコア和を求める類似度スコア計算部32と、求めた類似度スコア和に基づいて選択される登録特徴候補集合の要素を用いて、登録特徴集合の要素を決定することで、前記登録特徴集合を求める登録特徴生成部33と、を備える。【選択図】図１