Distortion Correction, E.g., For Pincushion Distortion Correction, S-correction (epo) Patents (Class 348/E3.043)
  • Patent number: 11605320
    Abstract: A method to project content from a moving projector. The method includes analyzing an object to identify a projection surface; determining a first position of a projector relative to the projection surface; modifying a first frame of a content for projection onto the projection surface based on the projection surface and the first position of the projector; projecting the first frame of the content from the projector onto the projection surface; determining a second position of the projector relative to the projection surface; modifying a second frame of the content based on the projection surface and the second position; and projecting the second frame of the content from the projector onto the projection surface.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: March 14, 2023
    Assignee: Disney Enterprises, Inc.
    Inventors: Joseph M. Popp, Steven M. Chapman, Charles P. Davis, Jeremie A. Papon, Alice J. Taylor
  • Patent number: 8675115
    Abstract: A forward interpolation approach is disclosed for enabling a second version of an image to be constructed from a first version of the image. According to one implementation of the forward interpolation approach, pixels from the first version of the image are processed one row at a time. As the pixels in a row of pixels in the first version of the image are processed, they may cause pixel values on different rows of the second version of the image to be determined. Since the pixel values of the second version of the image are stored in output line buffers, this means that, at any particular point in time, there may be multiple partially filled output line buffers. It has been observed that the forward interpolation approach enables significant benefits (such as reduced storage requirements and reduced internal bandwidth and processing) to be achieved over a backward interpolation approach.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: March 18, 2014
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Oded Gigushinski, Shahar Kovalsky, Noy Cohen, Yariz Oz, Daniel Cohen, Avi Amramy
  • Patent number: 8340462
    Abstract: A forward interpolation approach is disclosed for enabling a second version of an image to be constructed from a first version of the image. According to one implementation, pixels from the first version of the image are mapped to pixels in the second version of the image, and pixel values are determined for the corresponding pixels in the second version of the image. In one implementation, the pixel mapping is performed using a lookup table and linear approximation. Performing the pixel mapping in this manner enables computations to be simplified and cost and gate count to be reduced.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: December 25, 2012
    Assignee: DigitalOptics Corporation Europe Limited
    Inventors: Oded Gigushinski, Shahar Kovalsky, Noy Cohen, Yariv Oz, Poitr Stec, Alexandru Drimbarean, Corneliu Zaharia, Mihai Constantine Munteanu