19 hours ago2 min read
Every Part Looks Fine. The Assembly Is Wrong.
Imagine inspecting an assembly kit. The tray should contain five washers. This one contains four. Every washer looks perfect. No scratches, no contamination, no unusual shape. The kit is still wrong. That sounds obvious to a person. But a vision system trained to recognise unusual appearances may be answering a different question. Familiar doesn’t mean correct Consider a simple patch-based anomaly detector. It compares each image patch with a memory bank of normal examples, t







