对近年来数字全息及散斑干涉技术在形变与位移测量方面的主要技术发展及应用发展进行综述。由于数字全息测量具有准确性高、无损、全场和动态测量等优点, 成为形变和位移测量的重要技术之一。最近几年, 数字全息技术在形变测量领域的发展主要体现在如下几个方面。首先, 数字全息形变测量逐步由原来单一维度的形变测量转向多维度的形变测量。尤其是三维形变的同时测量是近年来本领域的研究重点。其次, 形貌形变联合测量的技术受到关注。实际应用中曲面物体常常存在。而曲面物体需要离面与面内形变的分析, 这需要获取曲面物体的形貌信息。针对这一需求, 学者们针对形貌形变的同时测量方法开展了研究。再次, 为了进一步扩大测量视场和深度范围, 对基于长波长及远距离的技术进行了探索。与此同时, 回顾了数字全息的形变测量技术在应用方面的进展。值得关注的是, 在应用方面, 数字全息技术从以前工程领域的形变测量向生物医学领域的形变测量发展, 测量数据用于生物医学领域疾病分析与研究。

The technique and application developments of the deformation and displacement measurements based on the digital holography(DH, including the digital speckle interferometry) was reviewed. Because of advantages of high accuracy, non-invasive, full-field and dynamic measurement, DH became one of the most important technique for deformation and displacement measurement. In recent years, the development of DH technique was mainly in the following aspects. Firstly, deformation measurement was developed from one-dimensional measurement to multi-dimensional measurements. Especially, simultaneous deformation measurements in three dimensions was the focus of this domain. Secondly, since curved objects were common in practice. However, in-plane and out-of-plane deformation were the main concern for curved object, which needed the 3D shape information of the curved objects. Thus, for curved objects, simultaneous 3D shape and deformation measurements were studied. Thirdly, to further extend the field of view and the depth of the measurement, techniques based on long wavelength and long distance were explored. Furthermore, measurements based on DH technique progressed from engineering domain towards biomedical domain to facilitate deeper researches in biomedical domain. Meanwhile, various application improvements of deformation measurement based on DH technique were covered in this review.