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1. US20210350523 - DETERMINATION DEVICE, CONTROL METHOD FOR DETERMINATION DEVICE, DETERMINATION SYSTEM, CONTROL METHOD FOR DETERMINATION SYSTEM, AND PROGRAM

Office
United States of America
Application Number 17283990
Application Date 16.06.2020
Publication Number 20210350523
Publication Date 11.11.2021
Publication Kind A1
IPC
G06T 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
G06T 7/90
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
90Determination of colour characteristics
G07D 7/128
GPHYSICS
07CHECKING-DEVICES
DHANDLING OF COINS OR OF VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
06using wave or particle radiation
12Visible light, infra-red or ultraviolet radiation
128Viewing devices
G06K 9/46
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
CPC
G06K 9/4642
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
4642by performing operations within image blocks or by using histograms
G06T 7/0004
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
0002Inspection of images, e.g. flaw detection
0004Industrial image inspection
G07D 7/128
GPHYSICS
07CHECKING-DEVICES
DHANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
06using wave or particle radiation
12Visible light, infra-red or ultraviolet radiation
128Viewing devices
G06T 7/90
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
90Determination of colour characteristics
Applicants DAI NIPPON PRINTING CO., LTD.
Inventors Kouji INAGAKI
Priority Data 2019115787 21.06.2019 JP
Title
(EN) DETERMINATION DEVICE, CONTROL METHOD FOR DETERMINATION DEVICE, DETERMINATION SYSTEM, CONTROL METHOD FOR DETERMINATION SYSTEM, AND PROGRAM
Abstract
(EN)

A determination device selects a determination area included in a captured image acquired by an imaging data acquisition device, extracts a determination image of a preset target color from the selected determination area, binarizes gradation data of the target color in pixel regions constituting the extracted determination image by using a binarization threshold suitable for each determination area to acquire binarized reference binary data of the determination image, converts the gradation data of the target color in the pixel regions constituting the extracted determination image with respect to a dark portion of the determination image to acquire converted gradation data, binarizes the acquired converted gradation data by using the binarization threshold to acquire comparison binary data, and acquires, based on comparing the reference binary data with the comparison binary data, a determination value for determining a printing method used to produce a printed surface of a printed product.