15.4.2 base line: An y-axis displacement equal to zero.
15.4.3 beginning-of-medium: A x-axis and y-axis of zero displacement. Alternatively this is being positioned at the intersection of the base and scan lines.
15.4.4 end-of-medium: The maximum x-axis and y-axis displacement.
15.4.5 image: The digital result of a scan.
15.4.6 object: The original or item being scanned.
15.4.7 pixel: Picture-element, which is the smallest photo sight in the array.
15.4.8 platen: The surface on which the target is positioned.
15.4.9 scan: An operation that generates a digital image from the reflected light of an object.
15.4.10 scan line: A y-axis displacement from the base line.
15.4.11 scanning range: The total area that a scanner can generate an image from. For two dimensional objects this may correspond to the largest object that can be scanned.
15.4.12 window: All or part of the scanning range of a scanner. A window defines the part of the object scanned.