Methods and systems for detection of repeating patterns of features

A computer program product comprising:

• a computer usable memory having computer readable code embodied therein, the computer readable code capable of causing a computer system to:
• obtain pixel data for a plurality of pixels in a digital image;
• extract line segment data from the pixel data, said line segment data comprising line segment angle data;
• identify a plurality of collinear line segments from the line segment data;
• identify another plurality of line segments from the line segment data;
• each line
• segment from said another plurality of line segments intersecting at least one line segment of said plurality of collinear line segments;
• and
• identify, utilizing said another plurality of line segments and the plurality of collinear lines, a plurality of features, the identified plurality of features comprising said another plurality of lines segments and the plurality of collinear lines.