J Shanghai Jiaotong Univ Sci ›› 2023, Vol. 28 ›› Issue (5): 577-586.doi: 10.1007/s12204-022-2414-9
陈启恒1, 彭娜2 , 吕娜1, 陶卫1 ,赵辉1
接受日期:
2021-12-31
出版日期:
2023-10-20
发布日期:
2023-10-20
CHEN Qiheng1(陈启恒),PENG Na2(彭娜),Lü Na1(吕娜),TAO Wei1(陶卫),ZHAO Huil*(赵辉)
Accepted:
2021-12-31
Online:
2023-10-20
Published:
2023-10-20
摘要: 在近似点光源的近距离照明条件下,光源的非均匀性是导致光度立体法形貌恢复精度不佳的不可避免的误差因素之一。为了避免对光源进行重复、繁琐的光度校准,需要半校准的光度立体法。本文提出了两种简单有效的基于栅格的半校准光度立体算法。所提出的方法扩展了传统的基于栅格的光度立体法,通过交替迭代地更新法向量、深度图和光源强度,可同时进行法向量和非均匀的光源强度的联合准确估计。本文进行了大量实验证明所提出算法的有效性和鲁棒性。实验表明,即使在极其严重的非均匀照明下,所提出的方法仍然可以有效地抑制误差,以及在实际实验中将形貌恢复精度提高达65.6%。
中图分类号:
陈启恒1, 彭娜2 , 吕娜1, 陶卫1 ,赵辉1. 近场准点光源照明下基于栅格变形的半标定光度立体法[J]. J Shanghai Jiaotong Univ Sci, 2023, 28(5): 577-586.
CHEN Qiheng1(陈启恒),PENG Na2(彭娜),Lü Na1(吕娜),TAO Wei(陶卫),ZHAO Huil*(赵辉). High Curvature Stripe Profile Extraction Algorithm of Line Structured Light Measuring System[J]. J Shanghai Jiaotong Univ Sci, 2023, 28(5): 577-586.
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