U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Object modeling system and process employing noise elimination and robust surface extraction techniques

Patent 6476803 Issued on November 5, 2002. Estimated Expiration Date: Icon_subject January 6, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Constructing solid models using implicit functions defining connectivity relationships among layers of an object to be modeled
Patent #: 6100893
Issued on: 08/08/2000
Inventor: Ensz, et al.

Inverse texture mapping using weighted pyramid blending and view-dependent weight maps
Patent #: 6271847
Issued on: 08/07/2001
Inventor: Shum, et al.

Method for sorting 3D object geometry among image chunks for rendering in a layered graphics rendering system
Patent #: 6326964
Issued on: 12/04/2001
Inventor: Snyder, et al.

System and method for performing a three-dimensional virtual segmentation and examination
Patent #: 6331116
Issued on: 12/18/2001
Inventor: Kaufman, et al.

Stereo reconstruction employing a layered approach Patent #: 6348918
Issued on: 02/19/2002
Inventor: Szeliski, et al.

Inventors

Assignee

Application

No. 479408 filed on 01/06/2000

US Classes:

345/419, Three-dimension345/420, Solid modelling345/582Texture

Examiners

Primary: Vo, Cliff N.

Attorney, Agent or Firm

International Class

G06T 017/00

Abstract

A system and process for computer modeling of an object involving first capturing images of the object that collectively depict all the object's surfaces which are to be modeled. A series of 3D reconstructions are then derived from the images. Each of the reconstructions represent a portion of the object's surfaces. Noise elimination techniques are employed to reduce the number of extraneous reconstruction points. The individual 3D reconstructions are then registered to a common coordinate system to produce an overall 3D reconstruction of the object's surfaces. A surface representation of the object is extracted from the overall 3D reconstruction using robust surface extraction techniques, and if desired, a texture map for the surface representation of the object can be computed using the previously captured images to produce a photorealistic model of the object.

Other References

  • B. Curless and M. Levoy. A volumetric method for building complex models from range images. In Compute Graphics (SIGGRAPH'96 Proceedings), pp. 303-312, 1996
  • H. Hoppe. Surface reconstruction from unorganized points. In Compute Graphics (SIGGRAPH'92 Proceedings), pp. 71-78, Jul. 1992
  • H. Samet. The design and analysis of spatial data structures. Addison Wesley, Reading, MA, 1990
  • Z. Zhang. Iterative point matching for registration of freeform curves and surfaces. The International Journal of ComputerVision, 13(2):119-152, 199
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