Table 3.
QPI unit comparison, colour coded for simplified visual analysis
| Attribute | Method 1 (portable QPIU) | Method 2 (QPI using Michelson interferometry) | Method 3 (4Deep S6 submersible microscope) | |
|---|---|---|---|---|
| Portability | High | Low | High | |
| In situ applications (without additional equipment) | Low | Low | High | |
| Sample processing/preparation | Manual | Automatic | N/A | |
| Spatial resolution | High (relies on oil immersion) | High | Low | |
| Cost | Low | Low | High | |
| Commercial availability | N/A | N/A | Yes | |
| AI image recognition | Proven (HoloConvNet) | Unproven but applicable | Insufficient for smaller (< 20 µm) cells | |