Input for computer device using pattern-based computer vision

摘要

Images of a least a portion of a structurally encoded pattern formed on a surface from a camera can be analyzed to determine a position of a camera. The structurally encoded pattern can include a plurality of elements. Each element can be encoded with information identifying a location and orientation of the element with respect to the surface. A computer program can identify at least a portion of one or more pattern elements in the image and determine the position of the camera relative to the surface from the information encoded in the one or more pattern elements in the image.