研究目的
To overcome the 2π ambiguity in interferometry by using a stereoscopic approach.
研究成果
The stereoscopic approach to overcoming the 2π ambiguity in interferometry is simpler and more accurate than existing methods, requiring no special equipment. The simulation confirmed that reconstructing stereoscopic information about the depth of the object from the reconstructed wavefront can differentiate objects despite the phase shift being an integer multiple of 2π.
研究不足
The method's effectiveness is demonstrated through simulation, and its practical application in real-world scenarios with physical equipment and varying conditions is not explored.
1：Experimental Design and Method Selection:
The method involves propagating a reconstructed wavefront reflected from an object into two different angles to obtain two different images of the object, which are then processed by stereo algorithms to resolve the 2π ambiguity.
2：Sample Selection and Data Sources:
The simulation used two infinite long bars (top view) laterally separated and located at different distances from the interference plane.
3：List of Experimental Equipment and Materials:
The simulation did not specify physical equipment but used mathematical models and algorithms.
4：Experimental Procedures and Operational Workflow:
The wavefront was propagated using the Angular Spectrum Wave Front Propagation (ASWFP), multiplied by a complex transmission function simulating two apertures, and then propagated to an image plane.
5：Data Analysis Methods:
The two different images of the object obtained in the image plane were processed by a stereoscopic algorithm to resolve the 2π ambiguity.
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