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GB/T 35742-2017Public security—Finger vein recognition applications—Technical requirements for images (English PDF)

公共安全指静脉识别应用图像技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 29, 2017

Implementation date

July 1, 2018

Scope

GB/T 35742-2017 is the English-translated version of 公共安全指静脉识别应用图像技术要求.

GB/T 35742-2017 is the Chinese standard "Public security—Finger vein recognition applications—Technical requirements for images". Its scope clause reads: This standard specifies the technical requirements of the public safety finger vein identification application of the middle finger vein image.

This standard applies to the identification and application of finger vein in public safety finger vein image acquisition and storage. Its clauses include terms and definitions; technical requirements.

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Document preview — GB/T 35742-2017

National Standard of the People's Republic of China

ICS: 13.310
Classification: A 91

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 technical requirements
4.1 image scanning method
4.2 image format
4.3 image resolution
4.4 image distortion rate
4.5 Image effective area acquisition range
4.6 effective area image pixels
4.7 Grayscale requirements
4.8 definition requirements
Appendix A (informative) refers to the vein image example

1 Scope

This standard specifies the technical requirements of the public safety finger vein identification application of the middle finger vein image.

This standard applies to the identification and application of finger vein in public safety finger vein image acquisition and storage.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GA/T 940-2012 Safety Finger Vein Identification Application System Image Technical Requirements

3 Terms and definitions

GA/T 940-2012 Terms and definitions apply to this document.

4 technical requirements

4.1 image scanning method

The coordinates of the position of the finger as shown in Figure 1, the origin position is not specified, the Y-axis direction from the fingertips to the root, the Z-axis direction away from the sensor

Direction, the X-axis direction is perpendicular to the YZ-plane, and the XYZ direction satisfies the right-hand rule.

The top left corner of the finger vein image is defined as the coordinate origin (0,0), the X-axis direction is from left to right, the Y-axis direction is scanned sequentially from top to bottom,

Which is consistent with the directions of the X-axis and the Y-axis of the direction of the finger position in FIG. 1, as shown in FIG. 2.

Figure 1 finger position coordinates of the icon […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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