A role of rectangularity in perceiving a 3D shape of an object

IF 1.5 4区 心理学 Q4 NEUROSCIENCES
Maria Dvoeglazova , Tadamasa Sawada
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引用次数: 0

Abstract

Rectangularity and perpendicularity of contours are important properties of 3D shape for the visual system and the visual system can use them as a priori constraints for perceiving shape veridically. The present article provides a comprehensive review of prior studies of the perception of rectangularity and perpendicularity and it discusses their effects on 3D shape perception from both theoretical and empirical approaches. It has been shown that the visual system is biased to perceive a rectangular 3D shape from a 2D image. We thought that this bias might be attributable to the likelihood of a rectangular interpretation but this hypothesis is not supported by the results of our psychophysical experiment. Note that the perception of a rectangular shape cannot be explained solely on the basis of geometry. A rectangular shape is perceived from an image that is inconsistent with a rectangular interpretation. To address this issue, we developed a computational model that can recover a rectangular shape from an image of a parallelopiped. The model allows the recovered shape to be slightly inconsistent so that the recovered shape satisfies the a priori constraints of maximum compactness and minimal surface area. This model captures some of the phenomena associated with the perception of the rectangular shape that were reported in prior studies. This finding suggests that rectangularity works for shape perception by incorporating it with some additional constraints.

矩形在感知物体三维形状中的作用
对于视觉系统来说,轮廓的矩形度和垂直度是三维形状的重要属性,视觉系统可以利用它们作为先验约束条件来真实地感知形状。本文全面回顾了之前关于矩形度和垂直度感知的研究,并从理论和实证两个方面讨论了它们对三维形状感知的影响。研究表明,视觉系统会偏向于从二维图像中感知矩形三维形状。我们认为这种偏差可能是由于矩形解释的可能性造成的,但我们的心理物理实验结果并不支持这一假设。请注意,对矩形形状的感知不能仅根据几何图形来解释。矩形形状是从与矩形解释不一致的图像中感知到的。为了解决这个问题,我们开发了一个计算模型,可以从平行柱体的图像中恢复矩形形状。该模型允许恢复的形状略微不一致,以便恢复的形状满足最大紧凑性和最小表面积的先验约束。该模型捕捉到了之前研究中报道的与矩形感知相关的一些现象。这一研究结果表明,通过将矩形与一些额外的约束条件结合起来,矩形对形状感知是有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Vision Research
Vision Research 医学-神经科学
CiteScore
3.70
自引率
16.70%
发文量
111
审稿时长
66 days
期刊介绍: Vision Research is a journal devoted to the functional aspects of human, vertebrate and invertebrate vision and publishes experimental and observational studies, reviews, and theoretical and computational analyses. Vision Research also publishes clinical studies relevant to normal visual function and basic research relevant to visual dysfunction or its clinical investigation. Functional aspects of vision is interpreted broadly, ranging from molecular and cellular function to perception and behavior. Detailed descriptions are encouraged but enough introductory background should be included for non-specialists. Theoretical and computational papers should give a sense of order to the facts or point to new verifiable observations. Papers dealing with questions in the history of vision science should stress the development of ideas in the field.
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