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Abstract: Phase unwrapping is a key step in interferometric phase
analysis. Affected by noise or sub-sampling, traditional algorithm can
not restore the real phase well and the errors spread along the
direction of the unurapping and make lines in the real phase. A new
region-growing algorithm based on predictions and guided by quality map
is described. It can be applied to the three-dimension measurement and
work well even in the lower noise-signal-ratio or sub-sampling
conditions. The detailed algorithm and an example of human body plaster
model are also given. The result shows the new region-growing algorithm
is efficient and feasible.
Key words: Phase unwrap Region-growing Quality map 3D shape
CLC No: TB92
国家自然科学基金资助项目(59965003). Received 20020830, received in revised form
20021030
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