Which pattern is used to test monitor spatial resolution?

Which pattern is used to test monitor spatial resolution?

• A. Grayscale check chart
• B. AAPM phantom
• C. Step-wedge
• D. SMPTE test pattern

Answer: (D)

Spatial resolution on a display is about how finely it can reproduce alternating light and dark patterns. The SMPTE test pattern is designed for that purpose, featuring a set of bars at increasing spatial frequencies so you can see exactly how fine a pattern the monitor can resolve before the bars blur together. That makes it the most suitable pattern for evaluating monitor resolution. The grayscale check chart focuses on tonal range and gray levels, not sharp spatial detail; the AAPM phantom is used to assess imaging-system quality in radiology, including geometry and contrast; the step-wedge tests exposure or density steps in imaging modalities, not how a monitor renders fine spatial detail.

Spatial resolution on a display is about how finely it can reproduce alternating light and dark patterns. The SMPTE test pattern is designed for that purpose, featuring a set of bars at increasing spatial frequencies so you can see exactly how fine a pattern the monitor can resolve before the bars blur together. That makes it the most suitable pattern for evaluating monitor resolution. The grayscale check chart focuses on tonal range and gray levels, not sharp spatial detail; the AAPM phantom is used to assess imaging-system quality in radiology, including geometry and contrast; the step-wedge tests exposure or density steps in imaging modalities, not how a monitor renders fine spatial detail.