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Comparison of this work with related studies_
| Study | Technique | Resolution [µm] | Level 3 feature capture | Spectral analysis | Acquisition time [s] |
|---|---|---|---|---|---|
| This work | 7-step FPP, RGB illumination | < 40 lateral, < 5 vertical | Yes – pores, ridge edges | Yes – RGB comparison | <1 |
| [7] | Single-shot FPP + biospeckle | ∼100 | Partial | No | ∼1 |
| [23] | Phase measuring profilometry | ∼50 | No | No | ∼0.5 |
| [32] | Full-field sinusoidal FPP | ∼70 | No | No | ∼1.5 |
| [33] | Composite color fringe projection | ∼60 | No | Yes – synthetic color | ∼1 |
| [48] | Level 3 matching (ridge, pores) | N/A | Yes – 2D | No | N/A |