Johnson Criteria

The number of raster lines of a display required to interpret different levels of objects within a displayed scene. These levels are:

• 1. No detection
• 2. Detection
• 3. Shape orientation
• 4. Shape recognition
• 5. Detail recognition

Sometimes used in training simulators to determine required resolution of visual displays.

• J. Johnson, "Analysis of Image Forming Systems," Proc. Image Intensifier Symposium, US Army Engineer Research and Development Laboratories, Fort Belvoir, Va., 6-7 Oct. 1958 (AD220160).