GB/T 45428-2025Forensic sciences — Forged video and image of a person — Multispectral imaging examination (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is issued by the Ministry of Public Security of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee on Criminal Technology Standardization (SAC/TC179).

This document was drafted by: Tsinghua University, Ministry of Public Security Identification Center, Institute of Automation, Chinese Academy of Sciences, Supreme People's Procuratorate Procuratorial Technology Information Research Center, Beijing Municipal State Security Bureau Judicial Identification Center, Judicial Identification Science Research Institute, Guangzhou Criminal Science and Technology Research Institute, Daqing Municipal Public Security Bureau, Shanghai SenseTime Intelligent Technology Co., Ltd.

The main drafters of this document are: Li Yali, Zhang Ning, Wang Shengjin, Zhai Wanfeng, Huang Wei, Wan Jun, Huang Yidong, Cui Kaiyu, Jiang Lan, Wang Kui, Li Jia, Zhou Songdong, Chao Feng, Lin Jiancheng, Zeng Jinhua, Shi Shaopei, Wang Guansan, Jia Shiyou, Rao Shijie, Chen Xiaojuan.

Forensic Science. Multispectral Testing of Forged Portraits

1 Scope

This document describes the multispectral inspection method for forged portraits in the field of forensic science, including inspection equipment, inspection samples, inspection steps, confidence intervals, and so on.

Calculation and test result presentation.

This document applies to the presentation attack examination of multispectral portraits in the field of forensic science.

2 Normative references

GB/T 45429

3 Terms and definitions

The terms and definitions defined in GB/T 45429 and the following apply to this document.

4 Inspection Equipment

4.1 Collection light sources and equipment, including cameras equipped with filters, multispectral cameras, hyperspectral cameras, etc. with band-segment collection capabilities Multispectral imaging equipment, etc.

4.2 Storage devices and computing devices.

4.3 Multi-spectral forged portrait inspection system, functions include but are not limited to.

a) Identify common presentation attack methods such as 2D presentation attack and 3D presentation attack;

b) Make quality judgment on multispectral image data;

c) Input, display and save multispectral portrait data;

d) Single or batch input of multispectral image data;

e) Adjust and optimize the input multispectral image;

f) extracting multispectral features from multispectral portraits;

g) Calculate the confidence level.

5 Test materials and samples