Actual recording · Synthetic English narration and captions · Simulated image pairs
THE PROBLEM
Comparing photographs from different viewpoints can confuse camera motion with a change in a part or print.
THE WORKFLOW
SIFT and robust geometry estimate a homography, check correspondences and overlap, rectify the view and highlight differences. A reviewer can inspect matches, blend views and download the evidence.
01SIFT correspondences
02Homography and geometry rejection
03Rectification and differences
04Review and export
RECORDED EVIDENCE
Results, with context.
Recorded checks on the stated dataset
Check
Cases
Pairs with corner error below 2 px
12 of 12
Changed pairs: mask IoU above 0.75
4 of 4
Dataset
perspective-match-v1
Completed cases
12/12
Median / p95 per case
0.177 s / 0.185 s
Evaluation record (UTC)
2026-10-09
Source: local pipeline execution on the identified inputs. CPU; no GPU. HTTP timings refer to the interface samples; for reconstruction they measure loading recorded geometry, not a new reconstruction. These are not customer outcomes or a guarantee on other data.
Twelve generated pairs with known transforms; four include planted changes. Each pair recovered corners with mean error below 2 pixels. This is a controlled test, not real print-line validation. Parallax, glare and interpolation can create false differences.
Recorded demo
Recorded demo