US 2001/0022854 A1 · Recognition apparatus and recognition method

Abstract

A recognition apparatus of this invention for recognizing sorting information as a character string written within a cellophane region of a paper-like material extracts edge components according to a differential image based on an image of light and shade of the paper-like material, determines a cellophane frame based on the edge components and recognizes the character string within the thus determined cellophane frame as an address. Thus, the cellophane region in which the address used as the sorting information is written can be correctly extracted and occurrence of erroneous recognition of the sorting information and erroneous sorting of the paper-like material can be prevented.

Claims18

Dependent claims

A recognition apparatus for recognizing sorting information as a character string written within one of a cellophane region and label region of a paper-like material, comprising:

reading means for reading a density value of each pixel in a main scanning direction and sub-scanning direction of the paper-like material;
first determining means for determining a portion in which a variation in the density value exceeds a preset value based on the density value of each pixel read by said reading means;
second determining means for determining said one of the cellophane region and label region of the paper-like material based on the portion which is determined by said first determining means that a variation in the density value exceeds the preset value;
and
recognizing means for recognizing the sorting information based on the character string written within said one of the cellophane region and label region determined by said second determining means.

2 more elements

A recognition method for recognizing sorting information as a character string written within one of a cellophane region and label region of a paper-like material, comprising:

a reading step of reading a density value of each pixel in a main scanning direction and sub-scanning direction of the paper-like material;
a first determining step of determining a portion in which a variation in the density value exceeds a preset value based on the density value of each pixel read in said reading step;
a second determining step of determining said one of the cellophane region and label region of the paper-like material based on the portion which is determined in said first determining step that a variation in the density value exceeds the preset value;
and
a recognizing step of recognizing the sorting information based on the character string written within said one of the cellophane region and label region determined in said second determining step.

2 more elements

Dependencies are inferred from the claim text.

Recognition apparatus and recognition method

Life of this patent

Recognition apparatus and recognition method

Life of this patent

Abstract

Claims18