Patents by Inventor Martin Grabenstein

Martin Grabenstein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7760202
    Abstract: A computer graphics system generates pixel values for pixels in an image of objects in a scene, using strictly-deterministic low-discrepancy sequences, illustratively Halton sequences, as sample points for evaluating integrals which are used to simulate a number of computer graphic techniques. The computer graphics system uses the low-discrepancy sequence to ensure that the sample points are evenly distributed over a respective region or time interval, thereby reducing error in the image which can result from clumping of such sample points which can occur in the Monte Carlo technique. In particular, the invention facilitates the generation of images of improved quality when using the same number of sample points at the same computational cost as in the Monte Carlo technique.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: July 20, 2010
    Assignee: Mental Images GmbH
    Inventors: Rolf Herken, Martin Grabenstein
  • Publication number: 20090153558
    Abstract: A computer graphics system generates pixel values for pixels in an image of objects in a scene, using strictly-deterministic low-discrepancy sequences, illustratively Halton sequences, as sample points for evaluating integrals which are used to simulate a number of computer graphic techniques. The computer graphics system uses the low-discrepancy sequence to ensure that the sample points are evenly distributed over a respective region or time interval, thereby reducing error in the image which can result from clumping of such sample points which can occur in the Monte Carlo technique. In particular, the invention facilitates the generation of images of improved quality when using the same number of sample points at the same computational cost as in the Monte Carlo technique.
    Type: Application
    Filed: January 19, 2009
    Publication date: June 18, 2009
    Inventors: Rolf Herken, Martin Grabenstein
  • Patent number: 7479962
    Abstract: A computer graphics system generates pixel values for pixels in an image of objects in a scene, using strictly-deterministic low-discrepancy sequences, illustratively Halton sequences, as sample points for evaluating integrals which are used to simulate a number of computer graphic techniques. The computer graphics system uses the low-discrepancy sequence to ensure that the sample points are evenly distributed over a respective region or time interval, thereby reducing error in the image which can result from clumping of such sample points which can occur in the Monte Carlo technique. In particular, the invention facilitates the generation of images of improved quality when using the same number of sample points at the same computational cost as in the Monte Carlo technique.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: January 20, 2009
    Assignee: Mental Images GmbH
    Inventors: Rolf Herken, Martin Grabenstein
  • Publication number: 20070018978
    Abstract: A computer graphics system generates pixel values for pixels in an image of objects in a scene, using strictly-deterministic low-discrepancy sequences, illustratively Halton sequences, as sample points for evaluating integrals which are used to simulate a number of computer graphic techniques. The computer graphics system uses the low-discrepancy sequence to ensure that the sample points are evenly distributed over a respective region or time interval, thereby reducing error in the image which can result from clumping of such sample points which can occur in the Monte Carlo technique. In particular, the invention facilitates the generation of images of improved quality when using the same number of sample points at the same computational cost as in the Monte Carlo technique.
    Type: Application
    Filed: June 8, 2006
    Publication date: January 25, 2007
    Inventors: Rolf Herken, Martin Grabenstein
  • Patent number: 7071938
    Abstract: A computer graphics system generates pixel values for pixels in an image of objects in a scene, using strictly-deterministic low-discrepancy sequences, as sample points for evaluating integrals which are used to simulate a number of computer graphic techniques, including soft shadows generated for scenes illuminated by a light source having a finite extent, such as a disk, simulation of depth of field; motion blur; and jittering. The computer graphics system uses the low-discrepancy sequence to generate sample points. The low discrepancy sequences ensure that the sample points are evenly distributed over a respective region or time interval, thereby reducing error in the image which can result from clumping of such sample points which can occur in the Monte Carlo technique. The invention facilitates the generation of images of improved quality when using the same number of sample points at the same computational cost as in the Monte Carlo technique.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: July 4, 2006
    Assignee: Mental Images GmbH & Co.KG
    Inventors: Rolf Herken, Martin Grabenstein
  • Publication number: 20030095122
    Abstract: A computer graphics system generates pixel values for pixels in an image of objects in a scene, using strictly-deterministic low-discrepancy sequences, illustratively Halton sequences, as sample points for evaluating integrals which are used to simulate a number of computer graphic techniques, including:
    Type: Application
    Filed: November 18, 2002
    Publication date: May 22, 2003
    Applicant: mental images GmbH & Co., KG
    Inventors: Rolf Herken, Martin Grabenstein
  • Patent number: 6529193
    Abstract: A computer graphics system and a method for generating pixel values in an image of objects using strictly-deterministic low-discrepancy sequences as sample points for evaluating integrals which are used to simulate a number of computer graphic techniques including soft shadows, simulation of depth of field, motion blur, jittering, and global illumination. Unlike the random numbers used in connection with the Monte Carlo technique, the low discrepancy sequences ensure that the sample points are evenly distributed over a respective region or time interval, thereby reducing clumping of such sample points. The invention facilitates the generation of images of improved quality when using the same number of sample points at the same computational cost as in the Monte Carlo technique.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: March 4, 2003
    Assignee: Mental Images GmbH & Co. KG
    Inventors: Rolf Herken, Martin Grabenstein