What is ISO/IEC 39794‑9 about?
ISO/IEC 39794‑9 is the ninth part of an international standard that discusses the extensible biometric data interchange formats.
ISO/IEC 39794‑9 specifies generic extensible data interchange formats for the representation of vascular image data:
- A tagged binary data format based on an extensible specification in ASN.1
- A textual data format based on an XML schema definition that are both capable of holding the same information
- Examples of data record contents
ISO/IEC 39794‑9 specifies application-specific requirements, recommendations, and best practices in data acquisition as well as conformance test assertions and conformance test procedures that are applicable.
Who is ISO/IEC 39794‑9 for?
ISO/IEC 39794‑9 on extensible biometric data interchange formats is useful for:
- Forensic laboratories
- Healthcare department
- High-security zones
- IT companies
- Government agencies
- Biometric device manufacturer companies
Why should you use ISO/IEC 39794‑9?
The use of the captured or processed image allows interoperability among biometric systems relying on pattern-based or other algorithms. Thus, data from the captured hand image offers the developer more freedom in choosing or combining comparison algorithms.
ISO/IEC 39794‑9 is intended for those applications requiring the exchange of raw or processed vascular images (for example, palm images) that are sometimes not necessarily limited in the number of resources available for data storage or transmitting time.
ISO/IEC 39794‑9 can be used for the exchange of scanned vascular images containing detailed image pixel information. It establishes an image-based representation of vascular information that does not rely on pre-established definitions of patterns or other types.
ISO/IEC 39794‑9 provides implementers with the flexibility to accommodate images captured from dissimilar devices, varying image sizes, spatial sampling rates, and different grey-scale depths. It stipulates the use of the vascular image will allow each vendor to implement their own algorithms to determine whether two vascular records are from the same hand.
ISO/IEC 39794‑9 supports both binary and XML encoding, to support a spectrum of user requirements. With XML, ISO/IEC 39794‑9 meets the requirements of modern IT architectures.
With binary encoding, ISO/IEC 39794‑9 is able to be used in bandwidth or storage-constrained environments.
