Patents Examined by Ishrat Sheral
  • Patent number: 7200274
    Abstract: An image decoding method is utilized to obtain high quality images without error accumulation. Such an image decoding method comprises receiving an encoded bitstream including information of P and B frames, and executing motion compensation by synthesizing a predicted image of a current frame using motion vector information included in the encoded bitstream and a reference image which is a previously decoded image. The motion compensation includes calculating intensity values at points where no pixels actually exist in the reference image by interpolation performed according to information specifying a positive rounding method or a negative rounding method when the current frame is a P frame, and using a predetermined rounding method which is a positive rounding method or a negative rounding method when the current frame is a B frame.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: April 3, 2007
    Assignee: Hitachi, Ltd.
    Inventor: Yuichiro Nakaya
  • Patent number: 6804415
    Abstract: The invention relates to a method for providing an image to be displayed on a screen 10 such that a viewer in any current spatial position O in front of the screen 10 can watch the image with only a minimal perspective deformation. According to the invention this is achieved by estimating the current spatial position O of a viewer in relation to a fixed predetermined position Q representing a viewing point in front of the screen 10 from which the image could be watched without any perspective deformation and by providing the image by applying a variable perspective transformation to an originally generated image in response to said estimated current position O of the viewer, such that the viewer in said position O is enabled to watch the image without a perspective deformation.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: October 12, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Cornelius Wilhelmus Antonius Marie Van Overveld, Johannes Bruijns
  • Patent number: 6704122
    Abstract: When a user enters control information for controlling a printing device, the information is stored in a user information storage unit. All combinations of items of the control information capable of being set by the user and values of items incapable of being set by the user, these having been selected so as to be the optimum values for the combinations, are stored as preset values in a combined information storage unit. An information storage unit compares a value in the user information storage unit with a value in the combined information storage unit. If a combination for which agreement is achieved is found in the combined information storage unit, this value is stored in a printing information storage unit and transmitted to the printing device. Thus, an optimum value can be selected and sent to the printing device even with regard to an item incapable of being selected by the user.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: March 9, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Moro, Koji Yamada
  • Patent number: 6522779
    Abstract: Representing an image includes extracting information reflecting one or more characteristics of an image that then is used to compute a first histogram vector. The first histogram vector includes one or more vector elements, each representing information for a different characteristic extracted about the image. Multiple subsets are identified within at least one of the vector elements included in the first histogram vector and a second histogram is created. The second histogram vector includes a vector element for each of the subsets identified within the vector elements included in the first histogram vector. Data within the vector elements of the second histogram vector represents the extracted image characteristics.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: February 18, 2003
    Assignee: America Online, Inc.
    Inventors: Gregory S. Pass, Frank Wood
  • Patent number: 6498863
    Abstract: A method, system, and product for analyzing a digitized image of an array to create an image of a grid overlay. The method comprising the steps of locating the center of each object on the array, determining a standard shape and size for the objects, and creating a final image of the grid overlay. Preliminary procedures can be used to normalize the image so that optimal results can be obtained. Sub-grids can be identified and objects repositioned within their corresponding sub-grids. Noise can be removed by filtering processes based on object size, intensity, and location.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: December 24, 2002
    Assignee: Media Cybernetics Inc.
    Inventors: Yuri C. Gaidoukevitch, Kevin W. Ryan, Dean E. Sequera
  • Patent number: 6373979
    Abstract: A system and method is disclosed for determining a level of similarity among more than one image. Anticipated spatial characteristics of an image are used for automatically identifying segments within the image and for identifying weights to be added to the color characteristics associated with the identified segments. To determine similarity, comparisons are made between weighted color characteristics of corresponding segments of different images. The identified segments have attributes such as size, position and number which are based on the anticipated spatial characteristics of the image. The anticipated spatial characteristics of the image include, among other things, differences in image characteristics that are anticipated at relative positions within the image.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: April 16, 2002
    Assignee: LG Electronics, Inc.
    Inventor: Jia Wang
  • Patent number: 6345126
    Abstract: A transmission method for video image data using an embedded bit stream in a hierarchical table-lookup vector quantizer comprises the steps encoding an image using hierarchical vector quantization and an embedding process to obtain an embedded bit stream for lossless transmission. The bit stream is selectively truncated and decoded to obtain a reconstructed image.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: February 5, 2002
    Assignee: Xerox Corporation
    Inventors: Mohan Vishwanath, Philip A. Chou, Navin Chaddha