Depth Estimation

After recording a 3D scan, the app can estimate the depth of a detected object beneath the surface based on the shape and width of the signal peak in the 3D map.

How to Use Depth Estimation

1. Open a completed 3D scan from Stored Scans or view the live result immediately after scanning.
2. Tap on a peak in the 3D map to select it.
3. The app displays an estimated depth reading below the peak marker.

Understanding the Estimate

The depth estimate is calculated from the spread and amplitude of the signal anomaly. A narrow, sharp peak typically indicates a small or shallow object; a broader, flatter peak may indicate a larger or deeper target.

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Depth estimation is an approximation. Soil composition, moisture, and object material all affect the signal shape. Use the estimate as a guide for where to investigate, not as a precise measurement.

Tips for Better Depth Accuracy

• Scan at a consistent, low sensor height (a few centimetres above the ground) for sharper signal peaks.
• Use high scan resolution (GoldenEye Plus) to capture fine detail around the target.
• Compare the estimated depth against the physical size of the anomaly on the map — very small peaks at high depth estimates are more likely to be noise.