Experimental assessment of a 3-D plenoptic endoscopic imaging system

Hanh N. D. Le; Ryan Decker; Axel Krieger; Jin U. Kang

doi:doi:10.3788/COL201715.051701

Chinese Optics Letters, 2017, 15 (5): 051701, Published Online: Jul. 23, 2018

Experimental assessment of a 3-D plenoptic endoscopic imaging system Download： 1328次

Hanh N. D. Le ^1,*Ryan Decker ²Axel Krieger ²Jin U. Kang ¹

Author Affiliations

¹ Electrical and Computer Engineering Department, Johns Hopkins University, Baltimore, MD 21218, USA

² Sheikh Zayed Institute for Pediatric Surgical Innovation, Children’s National Health System, Washington, DC 20010, USA

Figures & Tables

Fig. 1. Schematic of the endoscopic setup with the plenoptic camera and relay lens system.

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Fig. 2. Triangulation principle for virtual depth estimation. IP: Image plane.

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Fig. 3. Resolution and contrast measurements.

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Fig. 4. (a) Microlens image of the checker board at 0° with (b) its depth map and (c, d) point cloud data at different views.

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Fig. 5. Microlens image of the checker board at 45° with (b) its depth map and (c, d) point cloud data at different views.

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Fig. 6. (a–c) Microlens image of a plane and inhomogeneous objects and (d–f) its reconstructed depth maps.

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Fig. 7. (a) Microlens image of a fowl ventricular specimen and (b–d) its 3-D reconstructions at multiple angles.

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Table1. Reconstruction Accuracy and Precision at Two Planar Angle Deviations at 0° and 45° (Unit: mm)

		0°	45°
Accuracy	Mean	0.085	0.818
	Standard deviation	0.032	0.440
	Maximum	0.103	1.439
Precision	Mean	1.141	2.367
	Standard deviation	0.721	1.800
	Maximum	3.863	11.658

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Hanh N. D. Le, Ryan Decker, Axel Krieger, Jin U. Kang. Experimental assessment of a 3-D plenoptic endoscopic imaging system[J]. Chinese Optics Letters, 2017, 15(5): 051701.

Experimental assessment of a 3-D plenoptic endoscopic imaging system Download： 1328次

Fig. 1. Schematic of the endoscopic setup with the plenoptic camera and relay lens system.

Fig. 2. Triangulation principle for virtual depth estimation. IP: Image plane.

Fig. 3. Resolution and contrast measurements.

Fig. 4. (a) Microlens image of the checker board at 0° with (b) its depth map and (c, d) point cloud data at different views.

Fig. 5. Microlens image of the checker board at 45° with (b) its depth map and (c, d) point cloud data at different views.

Fig. 6. (a–c) Microlens image of a plane and inhomogeneous objects and (d–f) its reconstructed depth maps.

Fig. 7. (a) Microlens image of a fowl ventricular specimen and (b–d) its 3-D reconstructions at multiple angles.

Table1. Reconstruction Accuracy and Precision at Two Planar Angle Deviations at 0° and 45° (Unit: mm)

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Experimental assessment of a 3-D plenoptic endoscopic imaging system Download： 1328次

Fig. 1. Schematic of the endoscopic setup with the plenoptic camera and relay lens system.

Fig. 2. Triangulation principle for virtual depth estimation. IP: Image plane.

Fig. 3. Resolution and contrast measurements.

Fig. 4. (a) Microlens image of the checker board at 0° with (b) its depth map and (c, d) point cloud data at different views.

Fig. 5. Microlens image of the checker board at 45° with (b) its depth map and (c, d) point cloud data at different views.

Fig. 6. (a–c) Microlens image of a plane and inhomogeneous objects and (d–f) its reconstructed depth maps.

Fig. 7. (a) Microlens image of a fowl ventricular specimen and (b–d) its 3-D reconstructions at multiple angles.

Table1. Reconstruction Accuracy and Precision at Two Planar Angle Deviations at 0° and 45° (Unit: mm)

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