Patents by Inventor Morgan McGuire

Morgan McGuire 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: 20070024756
    Abstract: A method extracts an alpha matte from a video acquired of a scene. A set of pinhole or narrow aperture images IP is acquired of the scene with a camera aperture set to a relatively large depth-of-field. The scene includes a background B and a foreground F. A corresponding set of wide aperture images IF is acquired of the scene with the camera aperture set to a relatively small depth-of-field. The respective pinhole and wide aperture images are combined to extract an alpha matte according to ?=1+(IF?IP)/(B?BF).
    Type: Application
    Filed: July 29, 2005
    Publication date: February 1, 2007
    Inventors: Wojciech Matusik, Morgan McGuire
  • Publication number: 20060221209
    Abstract: A camera system acquires multiple optical characteristics at multiple resolutions of a scene. The camera system includes multiple optical elements arranged as a tree having a multiple of nodes connected by edges. the nodes represent optical elements sharing a single optical center, and the edges representing light paths between the nodes. The tree has the following structure: a single root node acquiring a plenoptic field originating from a scene; nodes with a single child node represent filters, lenses, apertures, and shutters; nodes with multiple child nodes represent beam splitters and leaf nodes represent imaging sensors. Furthermore, a length of the light paths from the roof node to each leaf nodes can be equal.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 5, 2006
    Inventors: Morgan McGuire, Wojciech Matusik, Hanspeter Pfister
  • Publication number: 20060221248
    Abstract: A method and system extracts a matte from images acquired of a scene. A foreground image focused at a foreground in a scene, a background image focused at a background in the scene, and a pinhole image focused on the entire scene are acquired. These three images can be acquired sequentially by a single camera, or simultaneous by three cameras. In the later case, foreground, background and pinhole sequences of images can be acquired. The pinhole image is compared to the foreground image and the background image to extract a matte representing the scene. The comparison classifies pixels in the images as foreground, background, or unknown pixels. An optimizer minimizes an error function in the form of Fourier image equations using a gradient descent method. The error function expresses pixel intensity differences.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 5, 2006
    Inventors: Morgan McGuire, Wojciech Matusik, Hanspeter Pfister, John Hughes, Fredo Durand