| US 7,574,019 B2 | ||
| Method for scene modeling and change detection | ||
| Anurag Mittal, Plainsboro, N.J. (US); Nikolaos Paragios, Plainsboro, N.J. (US); Visvanathan Ramesh, Plainsboro, N.J. (US); and Antoine Monnet, Princeton, N.J. (US) | ||
| Assigned to Siemens Corporate Research, Inc., Princeton, N.J. (US) | ||
| Filed on Nov. 21, 2007, as Appl. No. 11/943,945. | ||
| Application 11/943945 is a division of application No. 10/685162, filed on Oct. 14, 2003, granted, now 7,336,803. | ||
| Claims priority of provisional application 60/419202, filed on Oct. 17, 2002. | ||
| Claims priority of provisional application 60/419201, filed on Oct. 17, 2002. | ||
| Prior Publication US 2008/0130952 A1, Jun. 05, 2008 | ||
| Int. Cl. G06K 9/00 (2006.01) | ||
| U.S. Cl. 382—103 [382/107; 348/143] | 9 Claims |
| 1. A method for dynamic scene modeling and change detection applicable to motion analysis, comprising the steps of:
inputting a current image of said scene, and previously stored frames thereof;
representing said current image in a subspace;
learning a dynamical model in said subspace;
adapting said subspace in accordance with changes in said scene;
adapting parameters of said dynamical model in accordance with changes in said scene so as to provide a prediction of said
scene based on updating parameters of an autoregressive model thereof in an incremental manner;
determining differences between said prediction and said current image; and
outputting an indication of a new object when said differences meet predetermined criteria.
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