 Pixel shifting is also a technique that increases the true resolution of devices such as camcorder sensors and digital microscopes by moving one or more of the separate red, green or blue sensors by fractions of a pixel in the x- and y-directions.For example, early high-definition camcorders used a 3CCD sensor block of 960 × 540 pixels each.Shifting the red and blue sensors half a pixel in both the vertical and horizontal direction permits the recovery of a 1920 × 1080 luminance signal.