Title:
REAL TIME SEQUENCE VALUE FILTER EMPLOYING REFERENCE FUNCTION COMPARISON
Document Type and Number:
Japanese Patent JPS5868173
Kind Code:
A
Abstract:
Operating at real-time data rates, a hardware network generates a signal which closely approximates the Mth largest of a set of R input data signals. The operational basis of this network is a comparison (121-127) between the input data (101-107) and a monotonically-scanning reference function (110). At that point (140, 150, 160) when the lower (R-M+1) of the inputs have been equaled by an increasing reference, the reference has become the same as the Mth-largest and is used (119b, 165, 170, 175) as the filter output. Analogous operation is achieved with a decreasing reference. When the number of inputs is odd and M is made equal to ((R+ 1)/2), the network becomes a real-time median filter.
Inventors:
GAI BII KOORUMAN
JIEEMUSU DABURIYU HENDAASON
JIEIKOBU EMU SATSUKUSU
JIEEMUSU DABURIYU HENDAASON
JIEIKOBU EMU SATSUKUSU
Application Number:
JP16775682A
Publication Date:
April 22, 1983
Filing Date:
September 28, 1982
Export Citation:
Assignee:
HUGHES AIRCRAFT CO
International Classes:
G06F17/18; G06F7/02; G06T1/00; G06T5/20; H03H17/02; (IPC1-7): G06F15/20
Attorney, Agent or Firm:
Takehiko Suzue