情報投影提示型インタフェースにおける背景微小変動を考慮した指差し入力手法の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2017/02/01

タイトル(英語): Pointing Input Method robust to Small Background Changes for Information Projection Interface

著者名: 高沢　航一（東京電機大学），堤　祐太（東京電機大学），中村　明生（東京電機大学）

著者名(英語): Koichi Takazawa (Tokyo Denki University), Yuta Tsutsumi (Tokyo Denki University), Akio Nakamura (Tokyo Denki University)

キーワード: ポインティング動作，ジェスチャ認識，ヒューマンインタフェース，情報投影提示，プロジェクタ・カメラシステム　　Pointing Input，Gesture Recognition，Human Interface，Information Projection，Projector-Camera System

要約(英語): We propose a methodology for pointing-gesture detection using background subtraction that is robust to small changes in the background. We have developed an interface system that enables the user to input and obtain information in a position-free manner within a specific area of the environment using a projector-camera system. The system projects a command dialog box and observes the button that the user points at with their fingertip and thus receives commands. To detect the pointing gesture, the system extracts the hand region using background subtraction and detects the fingertip position based on the convex hull of the hand. We studied a background subtraction methodology that does not require a model of the background changes in advance. First, phase-only correlation is used to align positions between the input image and the background image. Then, similarities calculated from three features; local binary patterns, fractal dimension and color, are integrated into a unified similarity by Choquet integral. Noise is removed using a temporal weighing map representing the possibility that a pixel is in the foreground. The system discriminates foreground from background using similarity thresholding. We experimentally validated the proposed methodology for detecting pointing gestures.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.137 No.2 （2017） 大特集：電子・情報・システム部門誌 30周年記念「電子・情報・システム技術によるイノベーション」

本誌掲載ページ: 294-301 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/137/2/137_294/_article/-char/ja/