Patents by Inventor William T. Warner

William T. Warner 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).

  • Publication number: 20250166144
    Abstract: Embodiments of the present disclosure relate performing registration of a first image to a second image where the first image is undistorted to linear space before applying a geometric transformation matrix to modify the first image to align with the second image. The geometric transformation matrix may be a linear matrix that causes the undistorted version of the first image to make translation movement, rotational movement or both. The undistorted and modified first image is then reverted back to nonlinear distorted space. Then the reverted first image may be warped to better align with the second image for fusing with the second image. In this way, visual distortions in the fused image such as wobbling may be reduced or eliminated.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Applicant: Apple Inc.
    Inventors: Kaiming LIU, Maxim SMIRNOV, William T. WARNER, David POPE, Hui CHAO, Jason HOLLOWAY
  • Patent number: 12260532
    Abstract: Embodiments of the present disclosure relate performing registration of a first image to a second image where the first image is undistorted to linear space before applying a geometric transformation matrix to modify the first image to align with the second image. The geometric transformation matrix may be a linear matrix that causes the undistorted version of the first image to make translation movement, rotational movement or both. The undistorted and modified first image is then reverted back to nonlinear distorted space. Then the reverted first image may be warped to better align with the second image for fusing with the second image. In this way, visual distortions in the fused image such as wobbling may be reduced or eliminated.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: March 25, 2025
    Assignee: APPLE INC.
    Inventors: Kaiming Liu, Maxim Smirnov, William T. Warner, David Pope, Hui Chao, Jason Holloway
  • Publication number: 20240297949
    Abstract: An image processing circuit for performing local tone mapping (LTM) after image warping. The image processing circuit includes a warping circuit that warps an input image to generate a warped image, and a LTM circuit coupled to the warping circuit. The LTM circuit determines an input color component value for a color component of a pixel in a version of the warped image, determines an output color component value for the color component of the pixel, based on mapping of coordinates of pixels in the warped image to coordinates of pixels in the input image, determines a gain value for the pixel as a ratio of the output color component value relative to the input color component value, and adjusts color component values for color components of the pixel using the gain value to generate adjusted color component values for the color components of the pixel in an output image.
    Type: Application
    Filed: March 3, 2023
    Publication date: September 5, 2024
    Inventors: Muge Wang, William T. Warner, David R. Pope
  • Publication number: 20230138779
    Abstract: Embodiments of the present disclosure relate performing registration of a first image to a second image where the first image is undistorted to linear space before applying a geometric transformation matrix to modify the first image to align with the second image. The geometric transformation matrix may be a linear matrix that causes the undistorted version of the first image to make translation movement, rotational movement or both. The undistorted and modified first image is then reverted back to nonlinear distorted space. Then the reverted first image may be warped to better align with the second image for fusing with the second image. In this way, visual distortions in the fused image such as wobbling may be reduced or eliminated.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 4, 2023
    Inventors: Kaiming Liu, Maxim Smirnov, William T. Warner, David Pope, Hui Chao, Jason Holloway
  • Patent number: 11334961
    Abstract: Embodiments relate to circuitry for warping image pyramids for image fusion. An image fusion circuit receives captured images, and generates image pyramids corresponding to the received images to be used for image fusion. A warping circuit warps the first image pyramid based upon one or more warping parameters to align the first image pyramid to the second image pyramid. The warping circuit is a multi-scale warping circuit configured to warp each level of the first image pyramid, using a first warping engine that warps a base level of the image pyramid, and at least one addition warping engine that warps a plurality of scaled levels of the image pyramid in parallel with the first warping engine.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 17, 2022
    Assignee: Apple Inc.
    Inventors: Maxim Smirnov, William T. Warner, David R. Pope, Manching Ko
  • Publication number: 20220044349
    Abstract: Embodiments relate to circuitry for warping image pyramids for image fusion. An image fusion circuit receives captured images, and generates image pyramids corresponding to the received images to be used for image fusion. A warping circuit warps the first image pyramid based upon one or more warping parameters to align the first image pyramid to the second image pyramid. The warping circuit is a multi-scale warping circuit configured to warp each level of the first image pyramid, using a first warping engine that warps a base level of the image pyramid, and at least one addition warping engine that warps a plurality of scaled levels of the image pyramid in parallel with the first warping engine.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 10, 2022
    Inventors: Maxim Smirnov, William T. Warner, David R. Pope, Manching Ko
  • Publication number: 20150199833
    Abstract: One embodiment of the present invention sets forth a system for displaying images including a hardware display controller engine that receives a rendered image. The system also includes an output compositor that composites a first image and the rendered image to create a second composited image. Finally, the system includes a display to display the second composited image.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 16, 2015
    Applicant: NVIDIA CORPORATION
    Inventors: William T. WARNER, Michael I. GOLD, Karan GUPTA
  • Patent number: 5586125
    Abstract: The present invention is a method for operating a data processing system to generate a sequence of test states containing a predetermined set of states and/or transitions for use in testing an integrated circuit or the like. The method minimizes the number of additional states and/or transitions contained in the test sequence while preserving any constraints on the sequence of transitions that may be applied to the circuit to be tested. The present invention operates by defining a graph containing the predetermined set of states and/or transitions. The states are the vertices of the graph and the transitions are edges of the graph. The graph is then augmented if needed with additional states and/or transitions. The additional states and/or transitions assure the existence of an Eulerian Path through the graph. The additional states assure that the graph is connected, and that each vertex in the graph, with the possible exception of two vertices, has the same number of inbound and outgoing transitions.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: December 17, 1996
    Inventor: William T. Warner
  • Patent number: 4792226
    Abstract: An optical fingerprinting system includes an optics/processor unit, a video monitor, a data terminal, and a printer. The optics/processor unit includes a slap print prism for providing slap fingerprint images, and a plurality of individual finger prisms having differently sized finger-receiving grooves for providing individual fingerprint images. Slap/finger image selection optics selectively propagate fingerprint images from one of the individual finger prisms or slap print prism to a video camera. A video monitor is coupled to the camera, and provides a real-time display of the fingerprints being imaged. When a desired fingerprint image is observed on the monitor, an appropriate key of a key pad on the optics/processor unit is actuated and digital data characteristic of this image stored in memory. Following this procedure, data characteristic of all ten individual fingerprints and slap prints of both hands is stored.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: December 20, 1988
    Assignee: C.F.A. Technologies, Inc.
    Inventors: Glenn M. Fishbine, Eric W. Laveen, James M. Kaufman, Theodore D. Klein, William T. Warner