What is the difference between display resolution and sensor resolution?

What is the difference between display resolution and sensor resolution?

• A. Sensor resolution is the detector’s sampling capability; display resolution is the monitor’s ability to render pixels; true image resolution is limited by the lesser of the two plus processing.
• B. They are identical concepts.
• C. Display resolution is always higher.
• D. Sensor resolution is always higher.

Answer: (A)

The main idea is that image detail comes from two stages: how finely the scene is sampled by the sensor and how finely that data can be shown on a display. Sensor resolution is the detector’s sampling capability—the number of photosites and how they capture color information. Display resolution is the monitor’s grid of pixels that can illuminate detail. You can’t perceive more true detail than either stage allows, so the real image resolution is limited by the lesser of sensor resolution and display resolution. Processing steps like demosaicing, sharpening, or resizing can change how the detail appears, but they don’t create new information beyond what the sensor captured. That’s why the best answer describes true image resolution as limited by the smaller of the two, with processing influencing the final look. The other ideas aren’t correct because sensor and display are different concepts, and one isn’t inherently always higher than the other.

The main idea is that image detail comes from two stages: how finely the scene is sampled by the sensor and how finely that data can be shown on a display. Sensor resolution is the detector’s sampling capability—the number of photosites and how they capture color information. Display resolution is the monitor’s grid of pixels that can illuminate detail. You can’t perceive more true detail than either stage allows, so the real image resolution is limited by the lesser of sensor resolution and display resolution. Processing steps like demosaicing, sharpening, or resizing can change how the detail appears, but they don’t create new information beyond what the sensor captured. That’s why the best answer describes true image resolution as limited by the smaller of the two, with processing influencing the final look. The other ideas aren’t correct because sensor and display are different concepts, and one isn’t inherently always higher than the other.