Patent ID: 8755608
Filing Date: 2014-06-17
Classification: G06K

Abstract:
1. A marker generation device comprising: a video image inputting unit configured to input at least one background image; a measuring unit configured to measure, based upon the background image, postural changes of an object within this image; a feature extracting unit configured to extract feature points from said inputted background images; an invariant feature converter configured to display the feature points extracted from said at least one background image onto an invariant feature space with a predetermined conversion process responding to said postural changes; a unique feature selector configured to select as a unique feature a portion of said invariant feature space in which said feature point does not appear; and a marker generating means configured to generate a marker by employing said unique features: wherein said measuring unit comprises a basis number setting unit configured to measure the kinds of the postural changes of the object within this image based upon said inputted background images, and decide the number of corresponding reference points responding to said kinds of the postural changes; wherein: