Traditional speckle fringe patterns by electronic speckle pattern interferometry (ESPI) are inherently noisy and of limited visibility, so denoising is the key problem in ESPI.

• 原始的电子散斑干涉条纹图中含有很强的颗粒性噪声，对比度很差，因此去除噪声是电子散斑干涉测量技术的关键问题。