ステレオプシスの部分閉塞の役割

B L Anderson¹

¹Laboratory of Vision Research, Rutgers University, Piscataway, New Jersey 08854.

Nature

|January 27, 1994

まとめ

立体鏡の深さの知覚は,単なる不均衡以上のものを使用します. 視覚系はまた,半遮蔽,または部分的に隠されたオブジェクトからの画像の違いを解釈し,輪郭を理解し,視覚世界をセグメント化します.

科学分野:

ビジョンビジョン科学科学
コンピューティング神経科学
認知心理学の心理学

背景:

ステレオプシスの伝統的なモデルは,深さの知覚のための格差 (画像位置の違い) にのみ依存しています.
これらのモデルは,オブジェクトの一部が片目のみに見える (半遮蔽) 遮蔽と闘う.

研究の目的:

立体視力の格差を超えた画像の違いの役割を調査する.
視覚系が,深さとオブジェクトのセグメンテーションのために,オクラージング・コントールと半オクラージョンをどのように処理するかを探求する.

主な方法:

インターオキュラルの違いと遮断コントールの関係を明らかにするために設計された新しい視覚ディスプレイのプレゼンテーション.
単一線段を含む双眼標的に対する反応として主観的な輪郭形成と相互作用の分析.

主要な成果:

非不均等な画像の違い (垂直および水平) が,部分的なコントールの遮断から生じることを示します.
視覚系がこれらの違いを,輪郭を遮断するシグナルとして解釈する証拠です.
シンプルなターゲットでも主観的な輪郭形成と深さの知覚を観察し,協調的な相互作用によりグローバル輪郭に至ります.

結論:

立体鏡処理は,画像の違いを差異や半閉塞に積極的に分解します.
不平等は,可視表面の相対的な深さを提供し,半遮蔽は,境界でオブジェクトをセグメント化するのに役立ちます.
この2つの情報源は互いを補完し,3D視覚世界の包括的な理解を高めています.

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