Patents by Inventor Tinku Acharya

Tinku Acharya 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).

  • Method of performing Huffman decoding
    Patent number: 6563439
    Abstract: Embodiments of a method of performing Huffman decoding are disclosed. In one such embodiment, a data structure is employed, although, of course, the invention is not limited in scope to the particular embodiments disclosed.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: May 13, 2003
    Assignee: Intel Corporation
    Inventors: Tinku Acharya, Ping-Sing Tsai
  • Method of performing Huffman decoding
    Publication number: 20030085821
    Abstract: Embodiments of a method of performing Huffman decoding are disclosed. In one such embodiment, a data structure is employed, although, of course, the invention is not limited in scope to the particular embodiments disclosed.
    Type: Application
    Filed: November 12, 2002
    Publication date: May 8, 2003
    Inventors: Tinku Acharya, Ping-Sing Tsai
  • Dual mode signal processing system for video and still image data
    Patent number: 6556242
    Abstract: An electronic system including signal processing circuitry that can operate in video and still image modes. Incoming image data is processed and compressed according to the operating mode. Processing includes scaling logic configured to use scaling methodologies appropriate to each mode. Compressing includes using compression methodologies appropriate to each mode.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: April 29, 2003
    Assignee: Intel Corporation
    Inventors: Randy R. Dunton, Werner Metz, Curt Corum, Lawrence A. Booth, Jr., Tinku Acharya, Thomas C. Jones
  • Architecture for processing fingerprint images
    Publication number: 20030072034
    Abstract: Embodiments of an architecture for processing gray-level images is disclosed.
    Type: Application
    Filed: September 13, 2001
    Publication date: April 17, 2003
    Inventors: Tinku Acharya, Bhargab B. Bhattacharya, Partha Bhowmick, Arijit Bishnu, Jayanta K. Dey, Malay K. Kundu, Chivukula Anjaneya Murthy
  • Signal to noise ratio optimization for video compression bit-rate control
    Publication number: 20030072364
    Abstract: A method of determining a quantization parameter for video compression. A block characteristic for blocks in a video frame is quantized and then used to obtain a candidate quantization parameter. With the candidate quantization parameter, a number of bits for the blocks in the video frame is summed, producing a candidate bit rate. If the candidate bit rate is greater than a predetermined bit rate threshold, the candidate quantization parameter is set as the quantization parameter.
    Type: Application
    Filed: September 5, 2001
    Publication date: April 17, 2003
    Applicant: Intel Corporation
    Inventors: Hyun Mun Kim, Hyung-Suk Kim, Tinku Acharya
  • Fast half-pixel motion estimation using steepest descent
    Publication number: 20030067988
    Abstract: A method of locating a half-pixel resolution motion vector. The method first determines a sum of absolute difference for a predetermined number of neighbors to a current pixel. The gradient of these sums of absolute differences is then calculated. A motion vector is then selected based upon the gradient that indicates which vector lies in a direction of steepest descent. This motion vector is then used in motion compensation for video compression.
    Type: Application
    Filed: September 5, 2001
    Publication date: April 10, 2003
    Applicant: Intel Corporation
    Inventors: Hyun Mun Kim, Hyung-Suk Kim, Tinku Acharya
  • Method and apparatus to reduce false minutiae in a binary fingerprint image
    Publication number: 20030063782
    Abstract: Embodiments of a technique for reducing false minutiae are disclosed.
    Type: Application
    Filed: September 13, 2001
    Publication date: April 3, 2003
    Inventors: Tinku Acharya, Bhargab B. Bhattacharya, Partha Bhowmick, Arijit Bishnu, Jayanta K. Dey, Malay K. Kundu, Chivukula Anjaneya Murthy
  • Block-matching algorithm for color interpolation
    Publication number: 20030053684
    Abstract: What is disclosed is method that interpolates missing color components for an original pixel by utilizing color gravities for surrounding blocks of green pixels. A new pixel is output which has complete color information which is a function of the original pixel and interpolated color components. The interpolated pixel is a true representation of both luminance and chrominance information.
    Type: Application
    Filed: January 28, 2000
    Publication date: March 20, 2003
    Inventor: Tinku Acharya
  • Method and apparatus for providing a binary fingerprint image
    Publication number: 20030053666
    Abstract: Embodiments of a method and/or apparatus to provide a binary image are disclosed.
    Type: Application
    Filed: September 13, 2001
    Publication date: March 20, 2003
    Inventors: Tinku Acharya, Bhargab B. Bhattacharya, Partha Bhowmick, Arijit Bishnu, Jayanta K. Dey, Malay K. Kundu, Chivukula Anjaneya Murthy
  • Mathematical model for gray scale and contrast enhancement of a digital image
    Patent number: 6535648
    Abstract: What is disclosed is a method that specifies identifying a category to which a pixel belongs and performing integrated contrast enhancement and gray scale adjustment on the pixel in accordance with the identified category. These enhanced/adjusted values may be looked up in a table constructed to contain a mapping for all such values.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: March 18, 2003
    Assignee: Intel Corporation
    Inventor: Tinku Acharya
  • Variable length coding packing architecture
    Publication number: 20030038736
    Abstract: Embodiments of a variable length coding packing architecture are discussed.
    Type: Application
    Filed: August 22, 2001
    Publication date: February 27, 2003
    Inventors: Ricardo A. Becker, Tinku Acharya
  • VIDEO MOTION ESTIMATION
    Publication number: 20030031254
    Abstract: A system includes a processor and a memory. The memory stores a program to cause the processor to decompose a first frame of a video into a first set of frequency subbands. The first frame includes a first subimage. The program causes the processor to decompose a second frame of the video into a second set of frequency subbands and selectively compare portions of the first and second frequency subbands to locate a second subimage of the second frame. The second subimage is substantially identical to the first subimage.
    Type: Application
    Filed: September 27, 1999
    Publication date: February 13, 2003
    Inventor: TINKU ACHARYA
  • Method and apparatus for image scaling
    Publication number: 20030021486
    Abstract: Embodiments of an apparatus and method for up-scaling an image are described
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventor: Tinku Acharya
  • Two-dimensional pyramid filter architecture
    Publication number: 20020194234
    Abstract: Embodiments of a two-dimensional pyramid filter architecture are described.
    Type: Application
    Filed: April 30, 2001
    Publication date: December 19, 2002
    Inventor: Tinku Acharya
  • Method and apparatus for coding of wavelet transformed coefficients
    Publication number: 20020186892
    Abstract: Embodiments of a method and apparatus for coding and decoding wavelet transformed coefficients is described.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 12, 2002
    Inventors: Tinku Acharya, Prabir K. Biswas, Kokku Raghu
  • Method and apparatus for three-dimensional wavelet transform
    Publication number: 20020181593
    Abstract: Embodiments of a three-dimensional wavelet transform are described.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 5, 2002
    Inventors: Tinku Acharya, Prabir K. Biswas, Kokku Raghu
  • Two-dimensional pyramid filter architecture
    Publication number: 20020184276
    Abstract: Embodiments of a two-dimensional pyramid filter architecture are described.
    Type: Application
    Filed: March 30, 2001
    Publication date: December 5, 2002
    Inventor: Tinku Acharya
  • Method of integrating a watermark into a compressed image
    Publication number: 20020176602
    Abstract: In accordance with one embodiment of the invention, a method of integrating at least a portion of a watermark into at least a portion of a compressed image includes the following. The at least a portion of the watermark is encoded. THe at least a portion the image is compressed. The at least a portion of the encoded watermark and the at least a portion of the compressed image are combined. Of course, many other embodiments in accordance with the invention are included within the scope of the present invention.
    Type: Application
    Filed: July 12, 2002
    Publication date: November 28, 2002
    Inventors: Tinku Acharya, Kannan Raj
  • Two-dimensional pyramid filter architecture
    Publication number: 20020174154
    Abstract: Embodiments of a two-dimensional pyramid filter architecture are described.
    Type: Application
    Filed: March 26, 2001
    Publication date: November 21, 2002
    Inventor: Tinku Acharya
  • Image retrieval using distance measure
    Publication number: 20020164075
    Abstract: A Mahalanobis distance measure is used to identify a query image among plural images in a database. The measure may be used to rank the similarity of one or more images to the query image. A variance-covariance matrix is calculated for all images in the database. The variance-covariance matrix is used to calculate the Mahalanobis distance between the query image and one or more images in the database. A range tree may be used to identify likely image candidates for performing the Mahalanobis distance measurement.
    Type: Application
    Filed: March 23, 2001
    Publication date: November 7, 2002
    Inventors: Tinku Acharya, Bhargab B. Bhattacharya, Arijit Bishnu, Malay K. Kundu, Chivukula A. Murthy