Koninklijke Philips Corporation N.v.

U.S. Philips Corporation

C&eacute;cile Dufour

Lionel Bouchard

Michel Bonnet

Ivo Jansch

Laurent Duquesnois

Method of global motion estimation between consecutive video pictures

The invention relates to a new method of reconstruction of tridimensional scenes. While conventional methods are often limited to the 3D reconstruction of the bounding volume of the concerned objects, the proposed method of recovery of a 3D geometric model from 2D views taken by one single camera, giving an information even about the parts which are hidden in each view, is implemented according to a first depth labeling step, implemented in a sub-system ( ) and including initialization and projection sub-steps followed by a refinement process, and to a second reconstruction step, implemented in a sub-system ( ). By means of a close cooperation of the 3D depth maps thus obtained for two views of a scene, a 3D model is identified and extracted.

Method of reconstruction of tridimensional scenes and corresponding reconstruction device and decoding system

A video encoder and decoder are provided for processing a sequence of animated pictures in such a way that an interactive game, such as a puzzle for instance, may be played. Each picture of a movie sequence is divided into a predetermined number of pieces that are then randomly coded (according to the MPEG-4 standard), transmitted and/or stored, decoded and displayed. It is then possible to play with the pieces to reorder them while they are in motion (with possible associated audio), according to predefined rules and ends of scenarios. The left and right buttons of a mouse, or a similar control device, are used to displace either one piece, or a group of attached pieces respectively, in order to verify if the proposed location for a piece is free and possible (no contradiction with any other surrounding piece) and then to drop said piece on the new spot, or, on the contrary, if some contradiction is detected, send back the piece (or, respectively, the group of attached pieces) to its previous location.

Video encoder and decoder

Growing community of inventors

Paris, France

Cécile Dufour

Growing community of inventors

Paris, France

C&eacute;cile Dufour

Cécile Dufour