Patents Examined by Leo Boudreau
  • Patent number: 6868173
    Abstract: The truth of a paper type to be examined is judged by measuring, with respect to each of true paper types previously prepared, a plurality of types of characteristic amounts by a plurality of types of sensors for each of a plurality of portions for examination previously determined, analyzing principal components on the basis of obtained results of the measurement, to find an equation of straight line corresponding to the predetermined principal component, and producing reference data composed of a value relating to the predetermined principal component for the portion for examination on the basis of the foundation of straight line.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: March 15, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hidetaka Sakai, Yoshinori Tanabe
  • Patent number: 6865287
    Abstract: In the representation of X-ray images, an atomic number characteristic for an X-rayed sub-object (2, 3, 4) is determined from X-ray beams having different energies and the absorption values determined in that process, to which specific colors and shades are assigned. The representation of the color intensity is influenced so that, when representing objects (3, 4) having the same X-ray absorption on a monitor (8), the colors appear equally bright to the viewer. To that end, while the pre-set color for the objects (3, 4) is maintained, the brightness of the different colors is adjusted to an equal or approximately equal brightness, taking into account the spectral sensitivity of the human eye.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: March 8, 2005
    Assignee: Heimann Systems GmbH
    Inventor: Knut Beneke
  • Patent number: 6865288
    Abstract: A pattern inspection method and apparatus are disclosed, the method has the steps of generating a reference digital image signal to be compared with a detection digital image signal detected continuously from the desired band-shaped inspection area on an object to be inspected, determining zero or one or more candidate , matching positions between the detection digital image signal and the reference digital image signal for each block unit area sequentially cut out and calculating a mass of candidate matching positions over the entire band-shaped inspection area, determining an accurate matching position between the detection digital image signal and the reference digital image signal for each block unit area based on the continuity of the block unit areas from the calculated mass of candidate matching positions over the entire band-shaped inspection area, and determining a defect by matching the positions based on the determined accurate matching position for each block unit area and comparing the images.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: March 8, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Chie Shishido, Masahiro Watanabe, Yuji Takagi, Hiroshi Miyai
  • Patent number: 6865299
    Abstract: A method of performing variable-length coding for a multilevel image with simple processing, and a processing apparatus for executing this variable-length coding method at a high speed have not been established yet. According to this invention, discrete wavelet transformation processing is performed for multilevel image data to quantize the image data in units of subblocks of respective frequency components. An optimal shift parameter is easily determined at a high speed for each subblock. This realizes high-speed variable-length coding based on the parameter.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: March 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tadayoshi Nakayama
  • Patent number: 6865295
    Abstract: A histogram comparison process is provided that compares a histogram-vector of a first dataset to a corresponding histogram-vector of a second dataset. The histogram-vectors of the first and second datasets are formed from the histogram values of a select few of the histogram classes, the select few classes being the classes of the first dataset that contain the highest frequency count. The second dataset is characterized using only the select few classes of the first dataset; data items with values that belong to other classes are ignored. A palette dataset is created, corresponding to the second dataset, wherein the data items in the third dataset correspond to indexes to the select classes of the first dataset, or null indexes for the ignored data items. The histograms corresponding to overlapping regions is determined recursively, based on the third dataset.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: March 8, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Miroslav Trajkovic
  • Patent number: 6862370
    Abstract: An image detecting method comprises the steps of: a) searching for a pattern satisfying a predetermined commencement requirement by scanning an input image; b) using the pattern as a starting point, with referring to a dictionary storing therein distances between the center line and an edge of a detection target semicircle, determining for each of a predetermined number of main scan lines along a sub-scan direction whether or not a predetermined edge pattern occurs within a respective range of the distance of the dictionary; and c) determining a detection of the semicircle when the number of error lines on which the predetermined edge pattern does not occur within the respective range of the distance of the dictionary is less than a predetermined threshold.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 1, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideaki Yamagata, Michiyoshi Tachikawa, Toshio Miyazawa, Hiroshi Shimura, Miwa Kawano
  • Patent number: 6859545
    Abstract: An information hiding method with reduced fuzziness, which employs interleaving encoding, convolutional encoding and contrasts among neighboring pixels. Once the information is hidden, it can still be extracted without the original image from the generated image after a certain extent of fuzziness damage.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: February 22, 2005
    Assignee: Chung Shan Institute of Science and Technology
    Inventor: Kuang-Shyr Wu
  • Patent number: 6856696
    Abstract: A visual device searches for moving and still objects and counts the moving and still objects. The visual device includes a vibrator for vibrating a frame image by using an array calculating unit, an information unit for creating edge information on the moving and still objects from the frame image, a separator for separating the object region of the moving and still objects from the background of the frame image, a measuring unit for measuring the positions and sizes of the moving and still objects, a normalizer for normalizing the separation object regions segmented by the object regions, and a recognition unit for recognizing the normalized regions.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: February 15, 2005
    Assignee: Ecchandes INC
    Inventor: Yoshiaki Ajioka
  • Patent number: 6856700
    Abstract: An adaptive entropy coder is coupled with a localized conditioning context to provide efficient compression of images with localized high frequency variations. In one implementation, an arithmetic coder can be used as the adaptive entropy coder. The localized conditioning context includes a basic context region with multiple context pixels that are adjacent the current pixel, each of the context pixels having an image tone. A state is determined for the basic context region based upon a pattern of unique image tones among the context pixels therein. An extended context region that includes the basic context region is used to identify a non-local trend within the context pixels and a corresponding state. A current pixel may be arithmetically encoded according to a previously encoded pixel having the same tone or as a not-in-context element. In one implementation, a not-in-context element may be represented by a tone in a color cache that is arranged as an ordered list of most recent not-in-context values.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: February 15, 2005
    Assignee: Microsoft Corporation
    Inventor: Albert Szu-chi Wang
  • Patent number: 6853748
    Abstract: Adaptive luminance interpolation processing in a signal processing apparatus for acquiring an image signal from an image sensing element having color filters and processing the image signal is described. An adaptive luminance interpolation circuit determines the correlation of the image signal in the vertical and horizontal directions, and interpolates the luminance signal of the image signal in a direction in which the correlation is higher. The chroma signal of the image signal is interpolated regardless of the correlation direction. The chroma signal is processed by a color conversion matrix circuit for performing signal processing of suppressing a false color in the vertical direction or a color conversion matrix circuit for performing signal processing of suppressing a false color in the horizontal direction, switched by a matrix switching circuit based on the interpolation direction.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: February 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Endo, Eiichiro Ikeda, Takaaki Fukui
  • Patent number: 6853746
    Abstract: A color image processing method for retrieving a color feature descriptor for describing color features of an image is provided. The color image processing method includes the steps of (a) obtaining color vectors of an input image, (b) classifying the color vectors to obtain dominant colors of the input image and the ratios thereof, and (c) representing the dominant colors and the ratios thereof as a color feature descriptor of the input image. The color image processing method is applied to an object-based image processing method, thereby allowing fast search and retrieval of multi-media contents.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: February 8, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-doo Shin, Yang-lim Choi, Yining Deng, Bangalore S. Manjunath
  • Patent number: 6845176
    Abstract: A video image processing system includes an image sensor for sensing an image and generating an image signal therefor; and a histogram computation mechanism for generating, on-line, a histogram from said image signal. A method of analyzing a video image includes sensing an image; generating an image signal therefor; and computing, on-line, a histogram for the image from the image signal.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: January 18, 2005
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: M. Ibrahim Sezan
  • Patent number: 6845180
    Abstract: Ringing artifacts in digital images are predicted by determining a number of pixels of a block of pixels exhibiting luminance exceeding a luminance threshold adequate for detecting a ringing artifact and a number of these higher luminance pixels having sufficient contrast with neighbor pixels to be a likely source of a ringing artifact.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: January 18, 2005
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Kristine Elizabeth Matthews
  • Patent number: 6842533
    Abstract: A method for accessing a pre-approved image associated with a user which is stored in a first memory by an authorizing agency and is assigned a particular identification code which is linked to the pre-approved image and for making a document having such pre-approved image, including the steps of the user transferring his or her identification code for the pre-approved image to a receiving agency; the receiving agency accessing the stored pre-approved image using the transferred identification code and transferring such pre-approved image to a second memory; the receiving agency viewing the pre-approved image from the second memory so the receiving agency can verify that the viewed image is authentic; and printing the pre-approved authenticated image, text or graphics from the second memory at the receiving agency as part of a document.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: January 11, 2005
    Assignee: Eastman Kodak Company
    Inventors: David L. Patton, Gustavo R. Paz-Pujalt
  • Patent number: 6842543
    Abstract: The present invention is a method of processing a digital image that is initially represented by digital data indexed to represent positions on a display. The digital data is indicative of an intensity value Ii(x,y) for each position (x,y) in each i-th spectral band. The intensity value for each position in each i-th spectral band is adjusted to generate an adjusted intensity value for each position in each i-th spectral band in accordance with ? n = 1 N ? W n ? ( log ? ? ? I i ? ( x , y ) - log ? ? [ I i ? ( x , y ) * F n ? ( x , y ) ] ) , i = 1 , … ? ? , S where Wn is a weighting factor, “*” is the convolution operator and S is the total number of unique spectral bands. For each n, the function Fn(x,y) is a unique surround function applied to each position (x,y) and N is the total number of unique surround functions. Each unique surround function is scaled to improve some aspect of the digital image, e.g.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: January 11, 2005
    Assignees: Science and Technology Corporation, The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Glenn A. Woodell, Daniel J. Jobson, Zia-ur Rahman
  • Patent number: 6839465
    Abstract: A region data describing method for describing, over a plurality of frames, region data about the region of an arbitrary object in a video, the method specifying the object region in the video with at least either of an approximate figure approximating the region or characteristic points of the regions, approximating a trajectory obtained by arranging position data of the representative points or the characteristic point in a direction in which frames proceed with a predetermined function and describing the parameter of the function as region data. Thus, the region of a predetermined object in the video can be described with a small quantity of data. Moreover, creation and handling of data can easily be performed.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: January 4, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshimitsu Kaneko, Osamu Hori, Takeshi Mita, Koji Yamamoto
  • Patent number: 6836566
    Abstract: A method and a system in a computing environment which are capable of accurately pointing to any desired position in displayed images of various shapes. Pointing to a desired position on a displayed image is performed by using position correction information (position information of a hot spot) and an associated image as a template. A hot spot is an arbitrary point specified in advance in a template image, and a hot spot position in the template image is used as correction information of a pointing position. First, an image in the vicinity of a display coordinate obtained from a pointing device is compared with at least one template image. A closest matching template image and its position on an image are determined, and a final pointing position is calculated from the position on the image and position correction information (position information of a hot spot) associated with the template image.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: December 28, 2004
    Assignee: International Business Machines Corporation
    Inventor: Yuki Hirayama
  • Patent number: 6834127
    Abstract: The method adjusts an output image area for producing an output image from a recorded area of an original image within the recorded area of the original image so as to produce output image data that complies with a predetermined output image size. The method extracts the recorded area of the original image, extracts at least one region of a principal subject, a finger image and a fog region from the extracted recorded area of the original image to obtain an extracted region. The method adjusts the output image area automatically in accordance with the extracted region and obtains output image data from the image data in the adjusted output image area. Alternatively, the method issues information for urging an adjustment of the output image area when it is determined as a result of the extracted region that the adjustment of the output image area is necessary.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: December 21, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyasu Yamamoto
  • Patent number: 6834129
    Abstract: A flying sphere is photographed twice at a predetermined time interval and two static images thus obtained are used to measure a rotation of the sphere through an image processing based on a recognition mark of a surface of the sphere. The recognition mark includes a central mark having a directivity and a rotating angle calculating mark provided to surround the central mark. The central mark includes a rectangle and a circle provided apart from the rectangle adjacent to one of short sides of the rectangle. Three or more rotating angle calculating marks are provided. Respective center positions of the rotating angle calculating marks are present in a region provided apart from a center position of the central mark by 13 mm to 17 mm.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: December 21, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Takeshi Asakura
  • Patent number: 6831991
    Abstract: A system and method that efficiently, accurately, and simply detect reliably least-significant-bit (“LSB”) embedding of a secret message in randomly scattered pixels. The system and method apply to both 24-bit color images and 8-bit grayscale or color images. Many commercial steganographic programs use Least Significant Bit embedding (LSB) as the method of choice to hide messages in 24-bit, 8-bit color images and in grayscale images. They do so based on the common belief that changes to the LSBs of colors cannot be detected because of noise that is always present in digital images. By inspecting the differences in capacity for lossless (invertible) embedding in the LSB and the shifted LSB plane, the present invention reliably detects messages as short as 1% of the total number of pixels (assuming 1 bit per sample). The system and method of the present invention are fast, and they provide accurate estimates for the length of the embedded secret message.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: December 14, 2004
    Assignee: The Research Foundation of SUNY State University Plaza
    Inventors: Jessica Fridrich, Miroslav Goljan