Machine Vision & Industrial Inspection AI worked example

Camera Resolution with horizontal field of view of 550 mm: a worked example

Push horizontal field of view up to 550 mm and the picture changes. This example computes every intermediate figure at that operating point. Use it when specifying a machine vision system and you need to confirm that the chosen camera and lens combination gives enough mm per pixel resolution to reliably detect the smallest defect in your inspection specification.

The inputs for this scenario

  • Horizontal field of view (FOV width): 550 mm (raised for this scenario; the documented default is 220)
  • Camera horizontal pixel count: 2,448 pixels (unchanged)
  • Unit conversion factor: 1 x (unchanged)

Working through the calculation

  • Applying the documented formula (Inspection resolution = FOV width / horizontal pixel count x conversion factor) to the inputs above produces each figure below.
  • At this operating point the engine returns 0.22 mm/px for inspection resolution (mm per pixel), the number this scenario is built around.
  • At this operating point the engine returns 0.22 value for fov per pixel (before conversion).
  • At this operating point the engine returns 1 x for unit conversion factor.
  • At this operating point the engine returns 2,448 value for horizontal pixel count.

How this compares with the baseline

  • Against the tool's baseline example, where horizontal field of view sits at 220 mm and the headline result is 0.09 mm/px, this scenario comes in 150% above the baseline at 0.22 mm/px.
  • It computes inspection spatial resolution in mm per pixel by dividing the horizontal field of view by the camera's horizontal pixel count. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Inspection resolution (mm per pixel): 0.22 mm/px (headline result)
  • FOV per pixel (before conversion): 0.22 value
  • Unit conversion factor: 1 x
  • Horizontal pixel count: 2,448 value

Run it with your numbers

  • Every input above is editable in the live Camera Resolution calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.