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Technical specification of digital image authenticity identification-Image CFA interpolation detection
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Basic data
| Standard ID | GA/T 918-2010 (GA/T918-2010) |
| Description (Translated English) | Technical specification of digital image authenticity identification-Image CFA interpolation detection |
| Sector / Industry | Public Security (Police) Industry Standard (Recommended) |
| Classification of Chinese Standard | A92 |
| Classification of International Standard | 13.310 |
| Word Count Estimation | 4,469 |
| Date of Issue | 2010-12-02 |
| Date of Implementation | 2010-12-02 |
| Quoted Standard | GA/T 592-2006 |
| Regulation (derived from) | Industry Standard Record Announcement No |
| Issuing agency(ies) | Ministry of Public Security |
| Summary | This standard specifies the basic requirements for the CFA interpolation feature of the image authenticity discrimination technique. This standard applies to China judicial organs in criminal, civil, judicial activities and national administrative organs in the administrative law enforcement and the handling of accidents and other activities in the image CFA interpolation detection. |
GA/T 918-2010: Technical specification of digital image authenticity identification-Image CFA interpolation detection
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Technical specification of digital image authenticity identification-Image CFA interpolation detection
ICS 13.310
A92
People's Republic of China Public Security Industry Standards
Image authenticity identification specifications
CFA image interpolation detection
Issued on. 2010-12-02
2010-12-02 implementation
People's Republic of China Ministry of Public Security
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.
This standard by the National Standardization Technical Committee of Criminal technical inspection camera Technical Committee (SAC/TC179/SC5) and proposed
Centralized.
This standard was drafted. Ministry of Public Security Evidence Identification Center, Institute of Automation.
The main drafters of this standard. Xu Xiaojing, Li Zhihui, Li Zhigang, PENG Si.
Image authenticity identification specifications
CFA image interpolation detection
1 Scope
This standard specifies the basic requirements for the authenticity of the image identification technology to detect CFA image interpolation characteristics.
This standard applies to our judiciary in criminal, civil, and judicial activities in the state administration and administrative enforcement event dealing with accidents
And other activities in the CFA image interpolation testing.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GA/T 592-2006 Rules of Criminal digital imaging technology
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
CFA interpolation colorfilterarrayinterpolation
When capturing a color image, in some camera sensor device (CCD or CMOS, etc.), the color of each pixel is obtained incomplete
The original color, but there are some colors obtained by interpolation method. This is because not every pixel has three color filters. This
Species interpolation in the same manner with periodic photosensitive devices; different photographic devices may have different interpolation method. We called this way
CFA interpolation.
4 Equipment
4.1 image analysis system and inspection
4.1.1 can open at least BMP, TIFF, JPEG format, three general digital image to open uncompressed AVI format video files
Member and convert video to continuous still images.
4.1.2 capable of a resolution of 128dpi × 128dpi image than the standard test set detected CFA interpolation characteristics.
4.1.3 CFA interpolation characteristic can be stored in the form of performance and value or map.
4.1.4 provide CFA interpolation characteristic difference between the standard.
4.1.5 The procedure can detect the operation and the corresponding parameters recorded and reproducing procedure.
4.2 Digital equipment
Scanners, should reach a maximum resolution of 1200dpi or more.
4.3 storage device
Choose at least two optical disk storage, disk arrays, tape drives and other storage devices.
...
