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This is a Quantitative Study study.

September 16, 2025

Phase unwrapping in large depth-of-field scenes

Key Points

The improved phase unwrapping method shows significant speed enhancements in large depth-of-field scenes, ensuring accurate measurements.
Experimental comparisons reveal that the improved method effectively addresses issues in both spatial and temporal phase unwrapping algorithms.
Analysis of mainstream phase unwrapping algorithms indicates notable advantages and disadvantages that impact measurement accuracy.
This study emphasizes the necessity for fast measurement capabilities in large depth-of-field applications, enhancing existing methodologies.

Abstract

This paper mainly introduces an accurate and fast phase unwrapping method in large depth-of-field scenes. Firstly, we introduce two mainstream algorithms for solving absolute phase by wrapped phase: spatial phase unwrapping algorithm and temporal phase unwrapping algorithm, and analyze the advantages and disadvantages of the two phase unwrapping algorithms, then analyze the problems of phase unwrapping in large depth-of-field scenes in these two mainstream methods, then introduce the improved method in large depth-of-field scenes, and prove the effectiveness of this method by experimental comparison. Then, we introduce the improved method in large depth-of-field scenes, and demonstrate the effectiveness of this method through experimental comparison, which can improve the speed of measurement and can meet the requirements of the fast measurement in large depth-of-field scenes.

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