-
When 3D+AI Inspection Answers the Shape Defects 2D Can’t Catch
A 20 μm lift on a chip part leaves almost no contrast in a photo from above, but a 3D sensor viewing the laser at 30° reads it with 3.9 μm height resolution.…
-
What Should a Camera See When a Humanoid Grasps an Object?
With a 0.5 mm grasp tolerance, a head camera's 1.8 mm depth error at 1 m cannot place the grasp, and the wrist camera must come within 184.8 mm to reach three pixels.…
-
What Changes in Vision Inspection When Logistics Automation Moves Into the Front End
Checkpoints at a transport handoff go right after the motion that creates the error. One 14.7 μm pixel holds a 50 μm chip across 3.4 pixels, and the 200 ms stop window is…
-
It Worked on the Server, So Why Does Accuracy Drop on the Edge?
Six small defects newly missed on the board cut overall accuracy by only 0.6 points but drop small-defect recall by 20.0 points, and the interpolation alone swings the contrast left in a 3…
-
Overdetection or Missed Detection, Which One Costs More?
Even if one escape costs 100 re-inspections, at a 0.3% defect rate the threshold only drops from 0.583 to 0.487. Stopping 1.6 escapes a day costs 95 re-inspections, and a light dimmed by…
-
How to Handle Imaging on Highly Reflective Surfaces
Glare on a glossy surface leaves the frame once the light moves 14.8° off the axis; coaxial light costs 25 % of the light, cross-polarization 16 %, and four split shots 100 ms.…
-
How to Calculate Machine-Vision Lens Focal Length
For 100 mm across at a 200 mm WD, the shortcut points to a 12.8 mm lens, but a 12 mm lens mounted as is leaves only 0.13 mm of margin per side…
-
Four Snags in Initial Jetson Orin Nano Setup
An Orin Nano black screen usually means firmware below 36.0. Even after setup, a 5 MP camera at 30 fps needs 1.21 Gbit/s, more than the Gigabit LAN carries, and a 640 px…
-
Deep Learning vs. Rule-Based Algorithms, When to Use Which
With one camera, subpixel rules measure the hole diameter in 1.6 μm steps, and learning takes the scratches whose shape keeps changing. If the rarest scratch type is 10% of defects, 300 training…
-
In Machine-Vision Inspection, Physics Comes Before Software
A part passing at 500 mm/s shot with a 1 ms exposure smears across 30.6 pixels and the 50 μm crack disappears. Holding it to half a pixel takes a 16.3 μs exposure…
