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A three-dimensional ranging system based on Fresnel incoherent correlation holography

Optics Letters
  • Zhang Pengwei, Fengying Ma, Zekai Li, Nan Zhao, Fuyou Gao, Jianpo Su, Yongsheng Hu, and Jiuru He
  • received 01/16/2024; accepted 05/13/2024; posted 05/14/2024; Doc. ID 519014
  • Abstract: We proposed a three-dimensional (3D) ranging system based on Fresnel incoherent correlation holography (FINCH). Distinct from displacement measurement based on coherent digital holography (DH), our system simultaneously achieves 3D range measurement using incoherent illumination. The observation range is obtained by the holographic reconstruction, while the in-plane range is determined using the two-dimensional digital imaging correlation (2D-DIC) technique. Experimental results on the resolution target demonstrate precise 3D ranging determination and improved measurement accuracy.