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
Reframing circuitry with virtual container drop and insert functionality to support circuit emulation protocols
Push-up bar
Light receiving element with offset absorbing layer
Methods circuits apparatuses and systems for facilitating access to online content
Color image display device, color filter substrate, color pixel array substrate, and electronic device
Meat-containing, strip shaped food product and method of making same
System and method for measuring an analyte in a sample
  Randomly Featured Patents
Common mode management between a current-steering DAC and transconductance filter in a transmission system
Subtilisin variants multiply-substituted subtilising variants having a substitution at position 76
Switch with improved contacts for use in high temperature environments
Flask holder
Overhead trolley
Welding electrode for aluminum sheets
Upper tool and upper tool holding device for press brake
Substrate for color inkjet printing
Apparatus and methods for processing mailpiece information in a mail processing device using sorter application software
Retractable cover for open top container