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
System and method for portable information handling system thermal shield
Systems and methods to test and/or recover magnetic sensors with ESD or other damage
Image forming apparatus with cartridge support
Secure network computing
Redox shuttle for high voltage lithium battery
Homeotropic and hybrid bulk alignment of lyotropic chromonic liquid crystals
Estimation of the impulse response of a system on the basis of binary observations
  Randomly Featured Patents
Use of a tungsten bronze structured material and turbine component with a thermal barrier coating
Magnetically activated oscillatory motor
Materials handling system
Technique for synchronizing deliveries of information and entertainment in a communications network
Current sensor for electric machine control
Electroslag remelting method and flux composition
Pneumatic cleaning system
Isostatic apparatus for treating articles with heat and pressure
Write jog value determination for a disk drive
Bath and shower device with a bath tub and a related shower partition