MOTION AND DISPARITY ANALYSIS OF A STEREOSCOPIC SEQUENCE APPLICATION TO 3DTV CODING

Abstract: This paper adresses 3D motion, structure and disparity estimation in the context of coding of stereoscopic television. We propose a method that combines monocular and binocular analysis in such a way that each analysis can overcome the other's shortcoming. Monocular analysis of one sequence provides segmentation relative to 3D motion and structure parameters (determined up to a scale factor) for each picture. Each region corresponds to a planar facet in 3D world. For each region, disparity is modeled also in accordance to planar assumption and relative calibration knowledge. The extraction of the disparity gives access to the structure and depth parameters which are used to desambiguate the results of dynamic monocular analysis. Estimation of the parameters is performed using gradient or Newton like techniques.