Patents Examined by Kanji Patel
  • Patent number: 7974497
    Abstract: A method of modifying the region displayed in a window of predetermined size within a digital image represented by several resolution levels, between a first region (display_zone) of the digital image displayed at a first resolution (R) and a second region (final_zone) of the digital image including the first region (display_zone) and different from it, comprises the steps of: —selecting (S406), from the stored image parts (bitmap[r]) including the first region (display_zone), a stored image part (bitmap[k]) with a second resolution (k) that is the maximum among the resolutions of said parts, and less than the first resolution (R); —obtaining (S84, SE86) from the selected image part (bitmap[k]) at least one region included in the second region (final_zone) and including the first region (display_zone); —displaying (S88) the region obtained in said window. A corresponding method of displaying an image at plural resolutions is also proposed. Corresponding devices are also provided.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: July 5, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fabrice Le Leannec, Patrice Onno
  • Patent number: 7974490
    Abstract: Disclosed are an apparatus and method to improve clarity of images, which can prevent the degradation of the clarity of a display unit caused by deterioration of a contrast characteristic. The apparatus includes: an artifact reducing unit determining a representative color of one of the images and moving a color of an edge as the determined representative color; a filter extracting a high frequency component of the image; and a sharpness enhancement unit improving the clarity of the image having the color of the edge moved and the filtered high frequency component.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: July 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-young Lee, Du-sik Park, Hyun-hwa Oh
  • Patent number: 7970218
    Abstract: A method of filtering and encoding video data in a compressed format is provided. The method includes receiving pixels representing video data from an initial video display, receiving pixels representing video data from a subsequent video display, selecting a group of pixels from the subsequent video display as new video data, determining filtered pixel values from the new video data, and encoding the filtered values in a compressed format for communication to another computer accessible via a computer network.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: June 28, 2011
    Assignee: American Megatrends, Inc.
    Inventors: Govind Kothandapani, Varadachari Sudan Ayanam
  • Patent number: 7970230
    Abstract: A method of reducing ringing artifacts in image data that has been filtered with a high frequency emphasis filter. For each filtered data value, a local variance is calculated from data values at neighboring filter taps. This variance is compared to a threshold, and if the threshold is exceeded, the filtered data value is limited between local minimum and maximum values. A method of reducing noise, also using the local variance, is also described.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 28, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Jeffrey Kempf, Arnold P. Skoog, Roger M. Ikeda
  • Patent number: 7970237
    Abstract: Glossy reflections may include areas that are less clear (more blurry) than other regions. For instance, an area of reflection that is closer to the object being reflected may appear clearer than a region that is farther from the object. When generating a glossy reflection, the total amount of light reaching each point on the reflecting surface is calculated according to a spatially-varying convolution kernel of the transparency information for the image being reflected. Ray-tracing, traditionally used to determine a spatially varying convolution, can be very CPU intensive. Instead of using ray-tracing, data structures, such as MIP-maps and summed-area tables, or separable linear filters may be used to compute the spatially-varying convolution. For example, a two-dimensional convolution may be computed as two spatially-varying, separable, linear convolution filters—one computing a horizontal component and the other a vertical component of the final 2D convolution.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 28, 2011
    Assignee: Adobe Systems Incorporated
    Inventor: Gavin S. P. Miller
  • Patent number: 7961968
    Abstract: Areas, allowed to overlap, are set for respective pixels in an image, and a maximum density value and a minimum density value, among inherent density values of the pixels in each area, are extracted and specified as maximum and minimum density values common to the pixels in the area. Among the density values specified from the overlapping areas, the largest minimum density value is set as a local minimum value and the smallest maximum density value is set as a local maximum value to thereby generate a minimum density plane and a maximum density plane including the pixels having the values. The density values of the pixels at the corresponding positions in the minimum density plane and the maximum density plane are corresponded to the common minimum and maximum values set separately, to thereby linearly convert the whole. Thereby, the pixel density values of the original image are linearly converted simultaneously.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: June 14, 2011
    Assignee: NEC Corporation
    Inventor: Masanori Hara
  • Patent number: 7961975
    Abstract: The present invention includes methods for the reduction of speckle noise in an image and methods for segmenting an image. Each of the methods disclosed herein includes steps for analyzing the uniformity of a pixel within a plurality of pixels forming a portion of the image and, based on the uniformity of the intensity of the plurality of pixels, adjusting and/or replacing the pixel in order to produce a speckle-noise reduced image, a segmented image, or a segmented and speckle-noise reduced image. The methods of the present invention can employ for example conditional probability density functions, nonlinear estimator functions, convex energy functions and simulated annealing algorithms in the performance of their respective steps.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: June 14, 2011
    Assignee: STC. UNM
    Inventors: Ousseini Lankoande, Majeed Hayat, Balu Santhanam
  • Patent number: 7957606
    Abstract: Presented herein are a system and method for sharpening edges in a region. In one embodiment, there is presented a method for sharpening edges. The method comprises measuring differences between at least a value associated with a first pixel and a value associated with a second pixel of a plurality of pixels; and applying a sharpening mask to the plurality of pixels, wherein the sharpening mask is a function of at least one of the measured differences, a first value associated with any one of the plurality of pixels, and a second value associated with any other of the pixels, thereby resulting in sharpened pixels.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: June 7, 2011
    Assignee: Broadcom Corporation
    Inventor: Brian Schoner
  • Patent number: 7957612
    Abstract: A device and method and a distribution medium for performing image processing with a low-cost are provided, in which a main CPU issues instructions to a rendering engine to perform convolution filtering operations using rendering commands. In response to these instructions, the rendering engine repeatedly executes a process by which values calculated by computing convolution filter coefficients on the image data of the texture area of an image memory are overwritten in the rendering area, and thereby executes convolution filtering.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: June 7, 2011
    Assignee: Sony Computer Entertainment Inc.
    Inventor: Akio Ohba
  • Patent number: 7953288
    Abstract: What is disclosed is a novel system and method for edge transition detection when improve print quality when rendering via high-addressable vector error diffusion in an image processing environment. In order to detect an “ideal” edge and compensate for the adverse effects described in the background hereof, local pixels are detected and local gradient values are calculated and compared against an adjustable threshold to determine the interpolation method needed for that particular pixel. A nearest neighbor interpolation is performed when a local gradient exceeds a predetermined threshold. For example, if the difference between two successive pixels is greater than “200”, nearest-neighbor interpolation is used to calculate the intermediate sub-pixel level(s). Otherwise linear interpolation is used. Dynamically switching between these two interpolation schemes significantly improves the integrity and sharpness of the edges.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: May 31, 2011
    Assignee: Xerox Corporation
    Inventors: David J. Metcalfe, Yingjun Bai, Xing Li
  • Patent number: 7953301
    Abstract: Disclosed herein is an apparatus and method for searching for 3-dimensional shapes. The apparatus includes, an input means, an acquisition module, a storage means, a comparison and search module, an output means, and control means. The input means receives 3-dimensional image data. The acquisition module acquires a 2-dimensional image data group about the shape of an object represented by the 3-dimensional image data. The comparison and search module compares the respective data of the acquired 2-dimensional image data group with the respective data of the 2-dimensional image data groups that are previously stored in the storage means, and searches for 3-dimensional image data. The control means controls the modules and the means.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: May 31, 2011
    Assignee: Korea Institute of Industrial Technology
    Inventors: Jeongkil Choi, Youngchul Lee, Chaeho Lim
  • Patent number: 7953286
    Abstract: In a process for enhancing contrast of an image having pixels in different brightness intensities, a histogram in discrete bins is generated. Each bin represents a pixel population of at least one pixel brightness intensity. A peak and a peak region of the histogram is then identified, wherein the peak region is a range of discrete bins around the peak. An average pixel population within the peak region is computed, and the pixel populations of the discrete bins within the peak region that exceeds the average pixel population are distributed. A transfer curve for mapping onto the image is then generated. The process can be used in an image processor for enhancing contrast of an image having pixel. Still further, a display having a receiver and a screen can include the foregoing image processor.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: May 31, 2011
    Assignee: STMicroelectronics Asia Pacific Pte. Ltd.
    Inventors: Patricia Wei Yin Chiang, Yau Wai Hui
  • Patent number: 7949199
    Abstract: An image processing method for an image processing system for enhancing image quality after a sharpening procedure includes receiving a plurality of original image data, performing the sharpening procedure for the plurality of original image data for generating a plurality of sharpened image data, adjusting the plurality of sharpened image data according to the plurality of original image data, and outputting the plurality of sharpened image data.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: May 24, 2011
    Assignee: NOVATEK Microelectronics Corp.
    Inventor: Teng-Yi Lin
  • Patent number: 7949207
    Abstract: A video structuring device includes: character string extraction means for determining whether or not a character string is present in a frame image, and if it determines that a character string is present, generating character string position information for the character string present in a character string present frame image in which the character string is present, and outputting the character string position information, frame identifying information for identifying the character string present frame image, and the character string present frame image; video information storage means for storing frame identifying information, character string present frame image and character string position information in an index file all associated with one another; and structure information presentation means for associating character string display in the form of an image which is produced by cutting an area where the character string is present based on the character string present frame image and character string
    Type: Grant
    Filed: December 26, 2005
    Date of Patent: May 24, 2011
    Assignee: NEC Corporation
    Inventor: Noboru Nakajima
  • Patent number: 7949209
    Abstract: In this invention, when images, in image files managed according to photographing dates, which match a search condition are to be displayed, the images matching the search condition are sequentially displayed such that the positions or distribution of the image files, of all image files, which match the search condition can be checked. For this reason, when the search condition is changed by operating upper and lower keys provided on the back face of a digital camera, a search is made for images matching the condition after the change. Indicators indicating the relative positions of the images matching the search condition in the list of image files arranged in the order of photographing dates are displayed. When the left and right keys are operated, one of images matching the search condition is displayed in the image display area.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: May 24, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuichi Nakase, Hiroaki Yoshino
  • Patent number: 7945126
    Abstract: A system that provides automatic background analysis of a digital image or other media element makes a determination that the image or media element may benefit from correction, and prompts the user to use a correction feature of the system. In some implementations, the prompt itself can navigate the user to the controls for the correction feature. Accordingly, users are notified when they might benefit from correction, and they can be further led to discover a feature with which they may have previously been unfamiliar.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 17, 2011
    Assignee: Corel Corporation
    Inventors: Douglas E. Meisner, Bruce J. Lindbloom, Michael Greenhalgh
  • Patent number: 7945125
    Abstract: An image processing device for curbing memory expansion and reducing costs while securing programming freedom by a small programmable data processing unit. A plurality of process programs and process parameters thereof, to be sequentially executed in a data processing unit, are stored beforehand in a data memory. In the data processing unit is repeated, as many times as there are process programs in the data memory, an operation in which image data to be processed are divided into plural respective divided image data as process units, and a process program, process parameters thereof and divided image data are read from the data memory, the process program is executed on the divided image data referring to the process parameters thereof, and then the divided image data after processing, the executed process program and the process parameters thereof are written back to the data memory.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: May 17, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Takeharu Tone
  • Patent number: 7945073
    Abstract: Provided in this invention is a vein authentication device comprising: an interface on which a part of a living body; one or more light sources for emitting infrared light; an image pickup unit for picking up a blood vessel image of the part of the living body using infrared light emitted from the light sources; an image computing unit for processing the blood vessel image picked up by the image pickup unit; and a light shielding unit for shielding infrared light emitted from the light sources and preventing the infrared light from traveling in an image pickup direction of the image pickup unit, wherein the interface has an opening opened in the image pickup direction of the image pickup unit, and wherein the light sources irradiates the part of the living body with infrared light from an image pickup side of the part of the living body.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: May 17, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
  • Patent number: 7945108
    Abstract: The present invention provides a control method for a microscope apparatus, comprising: a first step for recognizing a type of a specimen retention member retaining a specimen; a second step for obtaining a first image including the whole image of a specimen retention member showing a picture of the entirety of the specimen retention member and an image of the specimen, and obtaining a second image including only the whole image of the specimen retention member in accordance with the type of the specimen retention member; and a third step for obtaining a macro observation image with a self fluorescence removed except for the specimen based on the first image and second image.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: May 17, 2011
    Assignee: Olympus Corporation
    Inventors: Takayuki Kono, Akihiko Yoshikawa
  • Patent number: 7941009
    Abstract: A computerized annotation method achieves real-time operation and better optimization properties while preserving the architectural advantages of the generative modeling approach. A novel clustering algorithm for objects is represented by discrete distributions, or bags of weighted vectors, thereby minimizing the total within cluster distance, a criterion used by the k-means algorithm. A new mixture modeling method, the hypothetical local mapping (HLM) method, is used to efficiently build a probability measure on the space of discrete distributions. Thus, in accord with the invention every image is characterized by a statistical distribution. The profiling model specifies a probability law for distributions directly.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: May 10, 2011
    Assignee: The Penn State Research Foundation
    Inventors: Jia Li, James Z. Wang