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Investigation Context (Scale, Distortion & Documentation)

Module Overview​

A reconstruction is only as strong as its documentation. This module is about turning a 3D model into something that can be scrutinized and defended: being honest about scale limits, accounting for distortion, quantifying uncertainty, and recording the methodology so another investigator could reproduce it. This is what separates a reconstruction that holds up from one that collapses under questioning.

Scale Limits​

[TODO: no reconstruction is infinitely precise. The accuracy of your scale is bounded by your best scale reference (the scale pillar from Module 04) and your imagery resolution. How to state a scale limit honestly — e.g. "dimensions accurate to within ±5 cm given the door-frame reference," not "exactly 2.4 m."]

Distortion​

[TODO: the sources of distortion that can silently move your model — lens distortion (barrel/pincushion) in the matched photo, satellite imagery projection error, and the assumption of a perfect pinhole camera. Why undistorting the source image before matching matters, and how residual distortion shows up as drift at the corners of a photomatch.]

Uncertainty & Honest Presentation​

[TODO: how to present uncertainty rather than hide it — error bars / ranges on key measurements, clearly labeling what is measured vs. assumed vs. estimated, and the difference between a reconstruction that is "right" and one that is "right within stated limits." Reference the Validate & Report page.]

Documentation Requirements​

[TODO: the minimum defensible record. Capture conditions, source imagery provenance, reconstruction software and versions, camera-solve parameters, scale reference and its source level, cleanup decisions, and the date performed. Frame it against the Berkeley Protocol on Documentation of Conflicts standard where relevant.]

Knowledge Check​

[TODO: 3 questions — e.g. what a scale limit is; why lens distortion must be corrected before matching; what the minimum documentation record should contain.]

Summary​

[TODO: one paragraph.]

KB References​

Last updated on by blender-visual-investigation