A mid-level explanation for the venetian blind effect

Frontiers in Psychology

Barbara J. Gillam¹ 

关键词: venetian blind effect;    stereoscopic slant;    stereopsis;    binocular vision;    depth perception;   

DOI  :  10.3389/fpsyg.2013.00908

学科分类：心理学（综合）

来源: Frontiers

【 摘 要 】

The term “venetian blind effect” was first coined by Cibis and Haber (1951) to describe a phenomenon in which a black and white vertical grating (Figure ​(Figure1A)1A) viewed with a neutral density filter over one eye, appears as a set of white slats, each one slanted around a central vertical axis appearing nearer on the side with the filter. A source of confusion is that Ogle (1962) renamed it “irradiation stereoscopy” and the term “venetian blind effect” has also been applied to another phenomenon. When gratings of different spatial frequency are presented to the two eyes, the pattern may break up into local slanted regions rather than slanting as a whole. This case has obvious horizontal disparity between the images and the question is how this pattern of disparities is organized under different combinations of spatial frequency. This is worthy of investigation. However, the original venetian blind phenomenon and the only one we discuss here, is much more mysterious and interesting because there is no horizontal disparity introduced by imposing a luminance or contrast difference between the two eyes' views.

【 授权许可】

CC BY