Recovering discontinuous surfaces with photometric stereo and laser sectioning

Gerald McGunnigle; Junyu Dong; Liyuan Su; Yanxia Fang

doi:10.1117/1.3575651

1 May 2011 Recovering discontinuous surfaces with photometric stereo and laser sectioning

Gerald McGunnigle; Junyu Dong; Liyuan Su; Yanxia Fang

Author Affiliations +

Optical Engineering, 50(5), 053605 (2011). https://doi.org/10.1117/1.3575651

Abstract

Surfaces that are recovered by integrating slope estimates are prone to errors caused by discontinuities in the surface. We propose combining laser sectioning and photometric stereo (PS) to estimate surface shape. PS is used to estimate slope; laser lines are used to measure four height profiles. The slopes are integrated along paths that start from the laser height profiles and avoid discontinuities. The scheme is shown to mitigate the bias and surface discontinuity problems associated with PS.

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Gerald McGunnigle, Gerald McGunnigle, Junyu Dong, Junyu Dong, Liyuan Su, Liyuan Su, Yanxia Fang, Yanxia Fang, } "Recovering discontinuous surfaces with photometric stereo and laser sectioning," Optical Engineering 50(5), 053605 (1 May 2011). https://doi.org/10.1117/1.3575651 . Submission:

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