Title:
【発明の名称】識別情報の記憶及び検索
Document Type and Number:
Japanese Patent JPH02501098
Kind Code:
A
Abstract:
A method for compressing a face image (62) into a digital bit stream; the method includes the steps of converting the image (62) to an array of raw pixel values; reducing the image (62) to generate a smaller array of pixel values (72); reducing the gray scale range of the pixel values in the smaller array (74); deriving data words indicative of the pixel values (74); and encoding the data words of the bit stream in accordance with the code of the type in which more frequently occurring data words are encoded as shorter sets of bits (76).
Inventors:
Huxley, William F
Corey, John Sea
Gary Earl, Greenfield
Joseph, Peasette
Corey, John Sea
Gary Earl, Greenfield
Joseph, Peasette
Application Number:
JP50632488A
Publication Date:
April 12, 1990
Filing Date:
July 22, 1988
Export Citation:
Assignee:
ETC
Huxley, William F
Corey, John Sea
Huxley, William F
Corey, John Sea
International Classes:
G06K17/00; G06T7/00; G07C9/00; (IPC1-7): G06F15/62; G06K17/00
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)