Patent ID: 7778446
Filing Date: 2010-08-17
Classification: G06K

Abstract:
1. A method for determining a mapping function for body pose estimation, the method comprising: using a computer processor to perform steps of: receiving a two-dimensional training image sequence of a moving subject, and a corresponding sequence of three-dimensional body pose representations of the moving subject; determining a set of appearance patches and motion patches for each of the two-dimensional training images in the training image sequence, the appearance patches representing an appearance of the moving subject in the training image sequence, and the motion patches representing movement of the subject between image frames of the training image sequence; extracting features from the appearance patches and the motion patches; and applying a multidimensional boosting regression to the appearance patches and the motion patches to derive the mapping function, the mapping function mapping each set of appearance and motion patches of the two-dimensional training images to a three-dimensional body pose representation of the subject, wherein the multidimensional boosting regression is based at least in part on the extracted features, and wherein applying the multidimensional boosting regression comprises: