Resources Contact Us Home
Pyramid processor integrated circuit

Image Number 6 for United States Patent #5359674.

Multiresolution (pyramid) filtering is useful in image processing. An IC for implementing a variety of multiresolution filters includes a programmable, symmetric, and separable two-dimensional filter. The input signal to the filter can be an input signal applied to the IC or a combination of two such signals. Circuitry in the IC may be programmed to imply pixel values around the edges of the two-dimensional image signals processed by the filter. The filter provides an output signal as well as each of the unfiltered signals from a tapped delay line of a filter that combines successive lines of the image. The IC also includes an arithmetic and logic unit in which the filtered output signal may be combined with an unfiltered input signal or one of the unfiltered tap signals. If the filter is programmed to produce a Gaussian low-pass filtered image, this image, combined with image data from a center one of the filter taps produces a Laplacian function of the original image.

  Recently Added Patents
Multiple secure elements in mobile electronic device with near field communication capability
Differential ring oscillator and method for calibrating the differential ring oscillator
Image processing device and information storage medium including motion vector information calculation
Low-coupling oxide media (LCOM)
Process for the production of alcohol
Partial response decision feedback equalizer with distributed control
Radio communication system, base station apparatus, terminal apparatus, and radio communication method for radio communication system
  Randomly Featured Patents
Formation of electrodes for magnetoresistive sensor
Method and apparatus for investigating the structure and porosity of earth and stony regions
Low trajectory long distance golf ball
Exterior wall panel attachment system
Analytical sample preparation system
Automated method for temporal segmentation of a video into scenes with taking different types of transitions between frame sequences into account
Electrophotographic apparatus comprising improved imaging system
Aortic heart valve prosthesis implantation tool
Permanent-magnet two-phase synchronous electric motor with mechanical start-up for washing machines and similar household appliances, in particular for washing pumps
Illuminating system