Fig. 2.

Schematic of the strip-scanning mechanism. The fast optical scan ($x$ axis scan) defines the width of a strip. The slow mechanical scan along the length of the strip ($y$ axis scan) is performed by translating the stage in the direction orthogonal to the $x$ axis. When the acquisition of a strip image is completed (“forward scan”), the stage moves in the $x$ direction a distance equal to or less than the width of the strip. Then the stage moves along the strip length, but in the opposite direction (“return scan”), and another strip image is acquired. This process of acquiring strip images is repeated until the entire tissue is imaged.