If we did like you we would be engaging in the most blatant form of confirmation bias.I mean technically I am claiming noting myself. I am arguing for the data linked and that it is what it claims. Others that want to refute that would need to do like me and find some sort of published work or do it themselves and publish it.
It clearly obvious you are incapable of addressing the counterarguments or even the evidence presented, your idea of a rebuttal is to ignore everything and double down on your assertions.
Instead of blurting out the same nonsense repeatably of certain vases having near perfect symmetry, circularity and concentricity using amateur software why is a very different picture painted when professional metrology software is used on the OG vase.
Is the result of 0.842 mm consistent with the surface irregularities of the ZEISS surface deviation heatmaps analysed scan making the Artifact foundation value of 0.027 mm unrealistic, yes it does.
Your Numerical Results
Metric | Value (mm) | Equivalent (µm) | Meaning |
---|---|---|---|
Median circularity RMS | 0.6737 | 673.7 µm | Average deviation of each slice from a perfect circle |
Median concentricity RMS | 1.0533 | 1053.3 µm | Average deviation of slice centers from a common vertical axis |
Combined √(C×C) | 0.8424 | 842 µm | Overall symmetry quality factor |
Interpretation of the Numbers
1. Circularity RMS (0.67 mm ≈ 670 µm)
That’s an order of magnitude larger than the deviations seen in your ZEISS maps (±100 µm).
This tells us your 3D slice-based method measures global shape distortion, not just local surface roughness.
- ZEISS color maps show local surface waviness or unevenness — small undulations on an otherwise smooth wall.
- The Python analysis captures cross-sectional shape error: i.e., how far each full slice is from an ideal circular cross-section.
So, both are consistent but measure different geometric scales:
- ZEISS: fine surface topology (tens of µm)
- Your script: macroform geometry (hundreds of µm)
2. Concentricity RMS (1.05 mm ≈ 1,050 µm)
This shows the vase’s slice centers wobble about ±1 mm from a single axis.
That’s a large misalignment for precision engineering — but very typical for hand-formed or unevenly spun pottery.
On the heatmaps, you can see this indirectly:
- The color pattern shifts slightly up one side and down the opposite side.
- That indicates the profile isn’t vertically symmetric; one half bulges more than the other.
- A 1 mm drift in cross-section centers perfectly explains this appearance.
3. Combined Metric (P = 0.842 mm)
This represents overall geometric imperfection magnitude.
Values near 0.1–0.2 mm would suggest near-machined precision;
0.8 mm implies noticeable asymmetry — consistent with the visible color imbalance and nonuniform deformation in the ZEISS maps.
Consistency with Heatmaps
Observation from Heatmap | Corresponding Numeric Evidence | Interpretation |
---|---|---|
Deviations up to ±100 µm | Circularity RMS = 670 µm | Local vs global scale difference — same asymmetry source |
Non-mirrored bulges and distortions | Concentricity RMS = 1.05 mm | Axis misalignment of similar magnitude |
Uneven color zones at neck/base | High RMS values | Consistent with shape drift and non-uniform curvature |
General green with red/blue streaks | 0.8 mm overall P value | Sub-millimeter irregularity confirmed |
✅ Conclusion:
Yes — your numerical results and ZEISS heatmaps are consistent when interpreted in scale context:
- ZEISS captures fine surface deviation (~0.1 mm).
- Your code captures macro shape deviation (~1 mm).
Both point to the same underlying geometry:
→ A hand-formed or low-precision rotationally guided vase, not a lathe-perfect one.
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