GB/T 36473-2018 in English
VALIDInformation technology—General specification of documents camera scanne
- Issued on:2018-06-07
- Implemented on:2019-01-01
- File Format:PDF
- Delivery:Via email within 5 business days
$592.00
| Standard No: | GB/T 36473-2018 |
| Document status: | VALID |
| Title in English: | Information technology—General specification of documents camera scanne |
| Title in Chinese: | 信息技术 文档拍摄仪通用规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2018-06-07 |
| Implemented on: | 2019-01-01 |
| ICS Classification: | 35.180-IT Terminal and other peripheral equipment |
| Chinese Classification: | L63-Computer peripherals |
| Professional Classification: | GB-National Standard |
| Related Topics: | to shoot
Atmospheric information shooting conditions Camera Instrument Technical Articles Speedometer Camera multi-shot instrument information technology document camera universal technical documentation shooting equipment technical documentation GBT36473 GB/T 36473-2018 virtual shoot Photographed by TKD WinDV shooting software |
《GB/T 36473-2018信息技术 文档拍摄仪通用规范》由TC28（全国信息技术标准化技术委员会）归口，TC28SC28（全国信息技术标准化技术委员会办公机器、外围设备和耗材分会）执行，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
This standard specifies the technical requirements and test methods for document cameras, and is applicable to various types of document cameras products. The main technical indicators include:
- Pixel performance: Effective pixels are not less than 90% of the nominal value
- Resolution: The visual resolution must reach 60%-65% of the theoretical limit
- Color reproduction: Color difference ΔE≤35 CIE L*a*b* units
- Environmental adaptability: Working temperature -10℃~40℃, storage temperature -10℃~55℃
Comparison of key technical indicators
| Performance parameters | Test method | Qualification standard |
|---|---|---|
| Geometric distortion | Shooting analysis using standard test chart | ≤5% nominal value |
| Visual resolution uniformity | Multi-area resolution test | Minimum/maximum ≥65% |
| Dynamic range | Grayscale test chart 11 levels of discrimination | ≥5 levels of distinguishability |
| Frame frequency | LED dot matrix synchronization test | 2 million pixels≥5fps |
Test environment specifications
The standard requires that the test should be carried out under specific conditions:
- Darkroom ambient illumination <1lx
- Temperature 15℃-35℃, humidity 25%-75%
- D65 standard light source (6500K±200K)
- Test chart illumination 700-1200lx, uniformity deviation ≤10%
Typical application case
Financial institution ID card recognition system: Using a document camera that complies with this standard, under D65 light source:
- Automatic correction of ID card (automatic correction within 10°)
- Color restoration ΔE<30 to ensure anti-counterfeiting feature recognition
- 5-megapixel device achieves a shooting speed of 1fps
Analysis of Standard Evolution
This standard was first published in 2018. The main technical breakthroughs include:
- Introduction of SFR (spatial frequency response) test method
- Clear quantitative test standards for dynamic range
- Specify Class B requirements for electromagnetic compatibility
- Add functional indicators such as automatic correction
Implementation Recommendations
Manufacturers should pay attention to:
- Optical components must meet MTBF≥5000 hours
- Moving parts must pass 2500 durability tests
- Regularly calibrate test light sources and color temperature meters
- Establish a strict chart management system
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