ISO/IEC 19794-9:2007定义了人类血管生物特征图像信息的交换。它定义了属性的特定定义、用于存储和传输血管生物特征图像和某些属性的数据记录格式、样本记录和一致性标准。 ISO/IEC 19794-9:2007适用于需要交换原始或处理过的血管生物特征图像的应用。它适用于不受所需存储量限制的应用。这是数据存储或传输所需资源与提高数据质量/准确性潜力之间的折衷或折衷。 基本上，它是为了使各种算法能够识别或验证从其他图像源传输的血管生物特征图像数据。目前可利用ISO/IEC 19794-9:2007进行图像交换的血管生物识别技术是使用手背、手掌和手指的技术。

ISO/IEC 19794-9:2007 defines the exchange of human vascular biometric image information. It defines a specific definition of attributes, a data record format for storing and transmitting vascular biometric images and certain attributes, a sample record and conformance criteria. ISO/IEC 19794-9:2007 is intended for applications requiring the exchange of raw or processed vascular biometric images. It is intended for applications not limited by the amount of storage required. It is a compromise or a trade-off between the resources required for data storage or transmission and the potential for improved data quality/accuracy. Basically, it is to enable various algorithms to identify or verify the vascular biometric image data transferred from other image sources. Currently available vascular biometric technologies that may utilize ISO/IEC 19794-9:2007 for image exchange are technologies that use the back of the hand, palm and finger.