针对传统评茧方法的缺陷，提出了基于机器视觉技术的蚕茧表面积测量方法。
Aiming at the drawbacks of the traditional way for cocoon evaluation, a measurement method for cocoon superficial area was advanced based on the technology of machine vision.
理论和实验结果对比表明，利用电子散斑干涉术技术能够精确地测量含缺陷材料表面的离面位移。
Off-plane displacement field on defects can be accurately measured by ESPI. It is fully proved by comparison between experimental results and theoretical results.
其次，使用由FFT快速傅立叶分析仪、激光传感器等组成的检测系统，进行了激光传感器对木材表面粗糙度定量测量方法的研究和木材表面缺陷识别的研究。
Secondly, laser sensor quantitative measure wood surface roughness method and wood surface defect recognition are studied by the test system consisting of FFT analyzer, laser sensor etc.
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