Some observations on the effects of slant and texture type on slant-from-texture
Some observations on the effects of slant and texture type on slant-from-texture
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关于倾斜和纹理类型对纹理倾斜影响的一些观察
DOI：
10.1016/j.visres.2004.01.013
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发表时间：
2004
期刊：
影响因子：
1.8
通讯作者：
J. Wagemans
中科院分区：
文献类型：
--
作者：
Pedro Rosas;Felix Wichmann;J. Wagemans
我们测量了五个受试者在不同纹理平面的两种选择强制选择倾斜歧视任务中的表现。作为纹理，我们使用均匀晶格、随机移位晶格、圆形（圆点）、Voronoi 镶嵌、格子、1/f 噪声、“相干”噪声和豹皮状纹理。我们的结果表明：（1）所有纹理的较大倾斜都提高了性能，（2）以及围绕特定方向的“非对称”性能的某些情况。 （3）对于充分倾斜的方向，不同的纹理不会引起性能上的重大差异，（4）而对于接近垂直平面的方向，它们之间存在显着差异。 (5) 这些差异允许根据纹理的“有用性”形成纹理的排序——即，当特定纹理映射到平面上时区分任务的容易程度。圆点图案往往具有最佳的倾斜辨别性能，而噪声图案则最差。进行了两个额外的实验来测试所获得的排序顺序的通用性。首先，将平面的倾斜度旋转 90°。其次，通过探头调整将任务改为倾斜报告任务。两个控制实验的结果证实了先前获得的纹理排序。然后，我们测试了一些基于空间频率的纹理倾斜模型，并讨论了它们在解释我们的排名顺序方面的缺点。最后，我们评论了这些结果对于一般深度感知研究的重要性，特别是我们的结果对使用纹理作为所涉及的线索之一的线索组合（传感器融合）研究的影响。
We measure the performance of five subjects in a two-alternative-forced-choice slant-discrimination task for differently textured planes. As textures we used uniform lattices, randomly displaced lattices, circles (polka dots), Voronoi tessellations, plaids, 1/f noise, “coherent” noise and a leopard skin-like texture. Our results show: (1) Improving performance with larger slants for all textures, (2) and some cases of “non-symmetrical” performance around a particular orientation. (3) For orientations sufficiently slanted, the different textures do not elicit major differences in performance, (4) while for orientations closer to the vertical plane there are marked differences among them. (5) These differences allow a rank-order of textures to be formed according to their “helpfulness”––that is, how easy the discrimination task is when a particular texture is mapped on the plane. Polka dots tend to allow the best slant discrimination performance, noise patterns the worst. Two additional experiments were conducted to test the generality of the obtained rank-order. First, the tilt of the planes was rotated by 90°. Second, the task was changed to a slant report task via probe adjustment. The results of both control experiments confirmed the texture rank-order previously obtained. We then test a number of spatial-frequency-based slant-from-texture models and discuss their shortcomings in explaining our rank-order. Finally, we comment on the importance of these results for depth-perception research in general, and in particular the implications our results have for studies of cue combination (sensor fusion) using texture as one of the cues involved.
DOI：
10.1364/josaa.4.002379
发表时间：
1987-12-01
影响因子：
1.9
作者：
FIELD, DJ
通讯作者：
FIELD, DJ