Analysis of reconstructed interference fields in digital holographic interferometry using the polynomial phase transform

作者：Gorthi Sai Siva^*; Rastogi Pramod

来源：Measurement Science and Technology, 2009, 20(7): 075307.

DOI：10.1088/0957-0233/20/7/075307

• digital holographic interferometry
• phase estimation
• filtering
• phase unwrapping
• polynomial phase transform

A noisy wrapped phase map is the end-output of commonly employed phase estimation methods in digital holographic interferometry. Hence filtering and unwrapping are necessary to obtain continuous phase distributions. This paper introduces a new approach for phase estimation in digital holographic interferometry using the polynomial phase transform. The proposed approach directly provides an accurate estimation of the unwrapped phase distribution from a noisy reconstructed interference field, thereby bypassing cumbersome and error-prone filtering and 2D phase unwrapping procedures.

• 出版日期2009-7