Online reference patch generation and pose estimation for augmented reality

An apparatus comprising:

• means for capturing one image of a planar object, the planar object comprising a first set of parallel lines that are perpendicular to a second set of parallel lines;
• means for detecting the planar object in the one image;
• means for defining a first axis for a world coordinate system using a first vanishing point for the first set of parallel lines and defining a second axis for the world coordinate system using a second vanishing point for the second set of parallel lines;
• means for recovering a camera rotation using the first axis and the second axis;
• means for generating a reference patch of at least a portion of the one image of the planar object using the camera rotation that is recovered;
• and
• means for comparing the reference patch to additional captured images of the planar object to estimate a pose with respect to the planar object.

A non-transitory computer-readable medium including program code stored thereon, comprising:

• program code to detect a planar object in an image, the planar object having a first set of parallel lines that are perpendicular to a second set of parallel lines;
• program code to define a first axis for a world coordinate system using a first vanishing point for the first set of parallel lines and defining a second axis for the world coordinate system using a second vanishing point for the second set of parallel lines;
• program code to recover a camera rotation using the first axis and the second axis;
• program code to generate a reference patch of at least a portion of the image of the planar object using the camera rotation that is recovered, and
• program code to compare the reference patch to additional captured images of the planar object to estimate a pose with respect to the planar object.