基于立体视觉的形状：一种使用二次曲面的系统方法。
Shape from stereo: a systematic approach using quadratic surfaces.
作者信息
de Vries S C, Kappers A M, Koenderink J J
机构信息
Utrecht Biophysics Research Institute, The Netherlands.
出版信息
Percept Psychophys. 1993 Jan;53(1):71-80. doi: 10.3758/bf03211716.
We used quadratic shapes in several psychophysical shape-from-stereo tasks. The shapes were elegantly represented in a 2-D parameter space by the scale-independent shape index and the scale-dependent curvedness. Using random-dot stereograms to depict the surfaces, we found that the shape of hyperbolic surfaces is slightly more difficult to recognize than the shape of elliptic surfaces. We found that curvedness (and indirectly, scale) has little or no influence on shape recognition.
在多个立体视觉形状感知心理物理学任务中，我们使用了二次形状。这些形状通过与比例无关的形状指数和与比例有关的曲率，在二维参数空间中得到了精妙的呈现。使用随机点立体图来描绘这些表面，我们发现双曲线表面的形状比椭圆表面的形状略难识别。我们还发现，曲率（以及间接的比例）对形状识别几乎没有影响。
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