A Spatial Phase Unwrapping Method Guided by a Unidirectional Neighbor Edge Index Chain List Strategy

In response to the issues of processing speed and storage associated with the quality map-guided method in classical spatial phase unwrapping techniques, this paper proposes a spatial phase unwrapping method guided by a unidirectional neighbor edge index chain list strategy. The proposed method pertains to the field of optical threedimensional measurement. This approach does not require the acquisition of additional images, enabling rapid data collection. Furthermore, the short chain list pointed to by a pixel node pointer in the main index chain list includes only the neighboring pixels of that pixel node, with quality values decreasing from left to right and from top to bottom. This significantly reduces the length of the chain list, shortens the traversal time of the chain list, and greatly reduces the time for sorting and allocating points, thereby enhancing the measurement speed. (Abstract)