Fig. 1. Schematic diagram of a plenoptic camera.

Fig. 2. Depth estimating via triangulation.

Fig. 3. Imaging of a lens.

Fig. 4. Spatial resolution of a microlens.

Fig. 5. Demonstration of on-line inspection based on a plenoptic camera.

Fig. 6. Experimental prototype of a plenoptic camera.

Fig. 7. (a) Mirror A, (b) mirror B, and (c) mirror C.

Fig. 8. Left part: raw image, right part: magnified micro image of flaws on mirrors A, B, and C.

Fig. 9. Depth map of flaws.