Patent ID: 8964002
Filing Date: 2015-02-24
Classification: A61B,G01B,G01S

Abstract:
1. A method for registering a first imaging detector to a surface, the method comprising: projecting a sequence of k images toward the surface, wherein k≧4, and wherein each of the k images comprises a pattern comprising a plurality of lines of light that extend in a direction that is orthogonal to a movement direction, wherein the transition from each one of the k images to the next image in the sequence is achieved by a spatial shift of the pattern by an equal increment along the movement direction so that the left-most image is removed and the next image in the sequence is appended as a right-most image in the pattern, and wherein the pattern encodes an ordered sequence of labels, each label having k binary elements, such that, in the movement direction, any portion of the pattern that is k equal increments long encodes one label of the ordered sequence; obtaining, for at least a first pixel in the first imaging detector, along at least one line that is parallel to the movement direction, a first sequence of k signal values indicative of the k binary elements of a first label from the ordered sequence of labels; and correlating, by a processor, the at least the first pixel in the first imaging detector to the surface.