Patent ID: 7743994
Filing Date: 2010-06-29
Classification: G06K

Abstract:
1. A method for storing data to form a virtual scan line pattern, comprising the steps of: defining at least one shallow virtual scan line family made up of a plurality of shallow virtual scan lines, wherein the shallow virtual scan lines in a given family are each defined at a distinct angle relative to the direction of travel of a raster line input, wherein the virtual scan lines within the shallow virtual scan line family are spaced apart by a fixed number of pixels, and wherein each of the virtual scan lines defined by the shallow virtual scan line family repeats indefinitely throughout the pattern; defining at least one steep virtual scan line family made up of a plurality of steep virtual scan lines, wherein the steep virtual scan lines in a given family are each defined at a distinct angle relative to the direction of travel of the raster line input that is greater than the angle with which the shallow virtual scan lines extend from the raster line input, and wherein at least one virtual scan line within the steep virtual scan line family comprises an overlapping portion; and storing data received from the raster input corresponding to pixels defined by the virtual scan line pattern.