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1. WO2014117536 - METHOD FOR IDENTIFYING SHEET AND BLOCK-SHAPED CONTRABAND, EXPLOSIVE OR DRUG

Publication Number WO/2014/117536
Publication Date 07.08.2014
International Application No. PCT/CN2013/084969
International Filing Date 10.10.2013
IPC
G01N 23/04 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/-G01N17/178
02by transmitting the radiation through the material
04and forming images of the material
G06K 9/00 2006.1
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
CPC
G01V 5/005
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
5Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
0008Detecting hidden objects, e.g. weapons, explosives
0016Active interrogation, i.e. using an external radiation source, e.g. using pulsed, continuous or cosmic rays
005using Tomography, e.g. CT or SPECT
G06K 9/6267
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
62Methods or arrangements for recognition using electronic means
6267Classification techniques
G06T 2207/10088
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10072Tomographic images
10088Magnetic resonance imaging [MRI]
G06T 2207/20021
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
20Special algorithmic details
20021Dividing image into blocks, subimages or windows
G06T 2207/20172
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
20Special algorithmic details
20172Image enhancement details
G06T 2207/30242
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
30Subject of image; Context of image processing
30242Counting objects in image
Applicants
  • 同方威视技术股份有限公司 NUCTECH COMPANY LIMITED [CN]/[CN]
  • 清华大学 TSINGHUA UNIVERSITY [CN]/[CN]
Inventors
  • 张丽 ZHANG, Li
  • 黄清萍 HUANG, Qingping
  • 孙运达 SUN, Yunda
  • 雷蕾 LEI, Lei
  • 唐智 TANG, Zhi
Agents
  • 中科专利商标代理有限责任公司 CHINA SCIENCE PATENT & TRADEMARK AGENT LTD.
Priority Data
201310041293.301.02.2013CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR IDENTIFYING SHEET AND BLOCK-SHAPED CONTRABAND, EXPLOSIVE OR DRUG
(FR) PROCÉDÉ D'IDENTIFICATION DE MARCHANDISE DE CONTREBANDE, D'EXPLOSIF OU DE DROGUE EN FORME DE PLAQUE OU DE BLOC
(ZH) 薄片和块状违禁品、爆炸物或毒品识别方法
Abstract
(EN) A method for identifying a sheet or block-shaped contraband, an explosive or a drug. The method comprises the following steps: (1) reading data of a fracture of an article to be checked; (2) preprocessing the data of the fracture; (3) slicing the preprocessed data of the fracture into a plurality of areas with similar physical properties; (4) analyzing whether each sliced area is a sheet area; (5) determining whether the sheet area detected in the current fracture can be merged with a sheet area detected in a previous fracture to form the sheet object; (6) determining whether each detected sheet object is ended or complete; and (7) repeating steps (1) to (6), and by using the one-by-one based fracture analysis method, processing data of each fracture until data of all fractures is processed.
(FR) La présente invention concerne un procédé d'identification de marchandise de contrebande, d'explosif ou de drogue en forme de feuille ou de bloc. Le procédé comprend les étapes suivantes : (1) lecture des données d'une fracture d'un article à vérifier ; (2) prétraitement des données de la fracture ; (3) découpage des données prétraitées de la fracture en une pluralité de zones présentant des propriétés physiques similaires ; (4) analyse pour découvrir si chaque zone découpée est une zone en plaque ; (5) déterminer si la zone en plaque détectée dans la fracture en cours peut être fusionnée avec une zone en plaque détectée dans une fracture précédente pour former l'objet en plaque ; (6) déterminer si chaque objet en plaque détecté est terminé ou entier ; et (7) répéter les étapes (1) à (6), et en utilisant le procédé d'analyse de fracture sur la base du un par un, traiter les données de chaque fracture jusqu'à ce que les données de toutes les fractures soient traitées.
(ZH) 一种薄片或块状违禁品、爆炸物或毒品识别方法,其包括以下步骤:(1)读入待检测物品的一个断层的数据;(2)对所述断层数据进行预处理;(3)将预处理后的断层数据分割为若干个物理属性相近的区域;(4)分析每一个分割区域是否为薄片区域;(5)判断当前断层中检测出的薄片区域是否能够与前一断层中检测出的薄片区域合并,用于形成薄片物体;(6)判断每个检出的薄片物体是否已经结束或完整;(7)重复步骤(1)-(6),采用逐个断层分析的方法处理每个断层的数据,直至处理完所有断层的数据。
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