针对数字全息对物体三维形貌的重构与测量，提出了一种将数字全息术与立体匹配术相结合的三维测量方法。首先利用离轴菲涅耳数字全息系统，采集三维物体的单幅离轴菲涅耳全息图；然后将获取的数字全息图分为两个部分，分别进行数值再现，可以得到两个再现像，两个再现像存在视差。最后利用立体匹配算法获取两幅视图再现像的视差，根据几何关系获取物体的深度信息，重构物体的三维形貌。实验中，分别对不连续物体和连续物体进行三维形貌的重构，得到了准确的三维物体深度信息。数值模拟和初步实验结果表明该方法有效可行。

Based on the combination of digital holography and stereo matching technology,a 3D measurement method for 3D shape reconstruction and measurement of digital holography is presented. Firstly, the off-axis Fresnel digital holography system is used, and the single off-axis Fresnel digital hologram of 3D object is obtained. And then,the digital hologram is divided into two parts,two reconstructed images are obtained after the reconsturction,and two reconstructed images exist disparity. At last, the disparity map can be achieved from the matching of two views. Based on geometric relationship, the depth information can be derived from disparity map and used to reconstruct 3D shape of the object. In the experiments,the shape of the scatter and continuous objects are measured by the proposed method, and relative accuracy depth information is derived. The validity of this method is proved by numerical simulation and initial optical experiment.