Altschuler Eric L, Huang Abigail E, Kim Hee J, Battaglini Luca, Roncato Sergio
Department of Physical Medicine and Rehabilitation, Metropolitan Hospital, 1901 First Avenue, New York, NY, 10029, USA.
Department of Ophthalmology, Duke University School of Medicine, Durham, NC, USA.
Atten Percept Psychophys. 2017 Oct;79(7):2108-2116. doi: 10.3758/s13414-017-1369-7.
Perceptual grouping has been extensively studied, but some areas are still unexplored-in particular, the figural organizations that emerge when bundles of intersecting lines are drawn. Here, we will describe some figural organizations that emerge after the superimposition of bundles of lines forming the profile of regular triangular waves. By manipulating the lines' jaggedness and junction geometry (regular or irregular X junction) we could generate the following organizations: (a) a grid, or a figural configuration in which both the lines and closed contours are perceived, (b) a figure-ground organization composed of figures separated by portions of the background, and (c) a corrugated surface appearing as a multifaceted polyhedral shell crossed by ridges and valleys. An experiment was conducted with the aim at testing the role of the good-continuation and closure Gestalt factors. Good continuation prevails when the lines are straight or close to straightness, but its role is questionable in the appearance of a corrugated surface. This perceptual organization occurs despite the violation of the good-continuation rule and consists of a structure of such complexity so as to challenge algorithms of computer vision and stimulate a deeper understanding of the perceptual interpretation of groups of lines.
知觉分组已得到广泛研究，但仍有一些领域尚未探索，特别是当绘制相交线束时出现的图形组织。在这里，我们将描述一些在形成规则三角波轮廓的线束叠加后出现的图形组织。通过操纵线条的锯齿状和交叉点几何形状（规则或不规则X交叉点），我们可以生成以下组织：（a）一个网格，或一个既能感知线条又能感知封闭轮廓的图形配置，（b）一个由被背景部分分隔的图形组成的图形-背景组织，以及（c）一个呈现为被脊和谷交叉的多面多面体壳的波纹表面。进行了一项实验，旨在测试良好连续性和闭合格式塔因素的作用。当线条是直的或接近直的时候，良好连续性占主导，但它在波纹表面出现中的作用值得怀疑。这种知觉组织尽管违反了良好连续性规则却依然出现，并且由如此复杂的结构组成，以至于挑战了计算机视觉算法，并促使人们更深入地理解对线组的知觉解释。
