川嶋 宏彰

魚群のメカニズムを詳細に理解するために，疑似個体を導入して実際の魚群との相互インタラクションを解析するアプローチが考えられる．そこで本論文では，疑似個体として映像を用いる方法に着目し，魚画像の動きに対する魚群の反応を計測するシステムを構築するとともに，実際の魚を用いてその基礎的検討を行った．各個体の追跡結果から遊泳周期の位相を解析することで，実際の魚群がディスプレイ上の魚画像に同期して泳ぐことを示し，疑似個体として映像を使うことの有効性を確認した。

In this study, we propose a framework to describe the relationship named spatiotemporal correlation between video contents and human gaze dynamics. The spatiotemporal correlation consists of (1) the event-level spatiotemporal gaps between visual events in videos and gaze reactions and (2) the scene-level correlations between video scene structures and corresponding gaze dynamics. Our framework can describe this twofold relationship simply and efficiently by discovering and combining primitive spatiotemporal patterns of visually salient regions in videos and those of gaze. The effectiveness of this framework is confirmed via several practical tasks of gaze behavior analyses in real environments, attentional target identification, attentive state estimation and gaze point prediction.In this study, we propose a framework to describe the relationship named spatiotemporal correlation between video contents and human gaze dynamics. The spatiotemporal correlation consists of (1) the event-level spatiotemporal gaps between visual events in videos and gaze reactions and (2) the scene-level correlations between video scene structures and corresponding gaze dynamics. Our framework can describe this twofold relationship simply and efficiently by discovering and combining primitive spatiotemporal patterns of visually salient regions in videos and those of gaze. The effectiveness of this framework is confirmed via several practical tasks of gaze behavior analyses in real environments, attentional target identification, attentive state estimation and gaze point prediction.