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本文对光弹性力学的数字图象处理与纹理分析进行了研究探讨。克服了前人工作[2]、[3]的若干局限。首先阐述了分析光弹性力学图象条纹的普遍有效方法,并利用光强I与图象条纹级数N之间的三角函数关系,推导出象素点灰度Z与条纹级数N对应关系式,从而得到力学参数。相应地还建立了光弹性力学的普遍数字图象处理与纹理分析系统。简称为OYC—1系统。最后,用实例检验此系统,其结果与理论值的最大误差仅为2.3％。
In this paper, the photoelastic mechanics of digital image processing and texture analysis are discussed. Overcome some of the limitations of previous work [2], [3]. Firstly, the general and effective method for analyzing the streaks of photoelasticity is expounded. By using the trigonometric function between the intensity of light I and the number of streaks N, the relation between the gray level Z and the number of streaks N is derived , To get the mechanical parameters. Correspondingly, universal digital image processing and texture analysis system of photoelasticity has also been established. Abbreviated as OYC-1 system. Finally, the system is verified by an example, and the maximum error between the result and the theoretical value is only 2.3%.