一种基于HRUnet网络的高精度相位解调方法
By directly demodulating the high-precision unwrapped phase distribution from the cosine interferogram using the HRUnet network, the problems of complex devices and error correction in existing technologies are solved, and high-precision phase measurement of dynamic samples is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN TECH UNIV
- Filing Date
- 2023-03-24
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, phase demodulation methods have problems such as complex equipment, complex error correction, and inability to be used for measuring dynamically changing samples. In particular, there are obvious abrupt phase errors in the unwrapped phase distribution directly output by the network.
Phase demodulation is performed using the HRUnet network. The HRUnet network is constructed and trained by generating data using Zernike polynomials. Using cosine interferograms as input, it directly outputs a high-precision unwrapped phase distribution, avoiding a complex error correction process.
It achieves high-precision unwrapped phase demodulation, is suitable for dynamic sample measurement, simplifies the operation process, improves the accuracy and precision of reconstructed phase distribution, and is applicable to closed interferograms with different sparsity levels.
Smart Images
Figure CN116428965B_ABST