设计了三个视觉心理学实验，对人眼识别纹理过程中是否也提取了不变性的特征、以及目前的计算机识别算法的性能是否超过人眼视觉系统的纹理识别性能问题进行了实验比较，结果发现：（1）几种计算机识别算法的不变性性能与人类视觉系统的纹理不变性性能基本上是一致的；（2）人类视觉系统对纹理识别具有旋转不变性。纵观人类视觉系统，单独的数字“6”和“9”认知区别很明显，一旦它们各自随机排列，形成纹理图像后，人类视觉系统会判断为同一纹理；（3）纹理特征由物体表面所展现，它取决于视觉分辨率。观测条件在某些设定情形下，人眼视觉系统纹理特征的空间尺度，其缩放尺度不变的范围大约为2．3倍；（4）一些计算机纹理分类算法的性能在限定条件下（如多尺度纹理斑块特征方法和Gabor滤波器方法），能够达到甚至超过人类视觉系统对纹理的识别能力。%Designed three visual psychological experiments to explore human ability on transformed texture discrimination and classical texture classification,and make some comparisons between human beings and computer algorithms.Some interesting results are obtained from these visual psychological experiments:(1 )The invariance performance of sevral computer algorithms is appropriate to human beings;(2)Texture is almost rotation invariant for human beings although single “6”and single “9”have significant different comprehension;(3 ) Texture appearance depends on visual resolution.The biggest invariant scale of spatial scaling is roughly 2.3 times for human visual system at some fixed observation conditions;(4)Some computer algorithms (such as MBF and Gabor)have achieved better performance than human beings under some restrictive conditions for fair comparison.
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