The number of pixels in the sensor determines the camera's "pixel count".
Multi-shot exposes the sensor to the image in a sequence of three or more openings of the lens aperture.
The illustration on the right can be said to compare a lens with very poor sharpness on a camera with high resolution, to a lens with good sharpness on a camera with lower resolution.
Since the first digital backs were introduced, there have been three main methods of capturing the image, each based on the hardware configuration of the sensor and color filters.
A digital rotating line camera offers images of very high total resolution.
The choice of method for a given capture is determined largely by the subject matter.