視線軌跡に基づいた画像中の空間周波数特性に対する視覚探索の検討

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: 2017/07/01

タイトル(英語): Characteristics of the Visual Search of Images Controlled by Spatial Frequency based on Scan Path

著者名: 佐藤　巧（東北学院大学大学院工学研究科），加藤　和夫（東北学院大学工学部），志子田　有光（東北学院大学工学部），黒木　友裕（（株）竹中工務店技術研究所），石川　敦雄（（株）竹中工務店技術研究所）

著者名(英語): Takumi Sato (Graduate School of Engineering, Tohoku Gakuin University), Kazuo Kato (Faculty of Engineering, Tohoku Gkuin University), Arimitsu Shikoda (Faculty of Engineering, Tohoku Gkuin University), Tomohiro Kuroki (Takenaka Research and Development Institute, Takenaka Corporation), Atsuo Ishikawa (Takenaka Research and Development Institute, Takenaka Corporation)

キーワード: 空間周波数，視覚探索，眼球運動，視線軌跡，サポートベクターマシン　　spatial frequency，visual search，eye movement，scan path，support vector machine

要約(英語): To design novel displays guiding gaze, it is important to know how the visual search affects the perception and cognitive processing of objects. The purpose of this study was to investigate the characteristics of the visual search that are controlled by spatial frequency. We measured the detection time, accuracy rate, and scan path during eye movement in response to target stimuli. The stimuli, embedded in one of 30 areas (6 horizontal × 5 vertical directions) in background image with the broad frequency range, were presented while the spatial frequency parameter β was varied; this corresponded to the slope of the luminance power spectrum in the target stimuli. Twelve healthy men (aged 21-23 years) with normal vision participated in the experiment. The results showed a visual search threshold of 0.5 of β for both subjective and objective responses, corresponding to oral responses and support vector machine (SVM) applied to the deviation of the scan path from the target stimuli, respectively. Furthermore, the objective responses observed using SVM suggest the possibility of subconscious discrimination of target stimuli even when the subjects could not discriminate the target stimuli subjectively.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.137 No.7 （2017） 特集：平成28年電子・情報・システム部門大会

本誌掲載ページ: 941-947 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/137/7/137_941/_article/-char/ja/