Patent ID: 9147113
Filing Date: 2015-09-29
Classification: G06K,G06T

Abstract:
1. A computer implemented method for tracking a marker on a deformable surface in augmented reality (AR) applications, comprising: detecting one or more image-key-points in a currently processed video frame of a video-captured scene, wherein the video-captured scene comprises one or more video frames; performing key-point-correspondence matching the image-key-points comprising: generating a recovered polygon mesh of the marker in the currently processed video frame using information of the successfully matched image-key-points and an original marker polygon mesh of the marker; and repeating the above steps for generating a series of recovered polygon meshes of the marker for tracking of the marker; wherein the adaptive threshold for the image-key-point is a discounted moving average of the key-point matching scores of the image-key-point calculated in two or more previously processed video frames.