标准摘要
[中文适用范围]: ISO/IEC 19794 的这一部分为利用虹膜识别的生物特征认证系统指定了两种替代图像交换格式。 第一种格式基于直线图像存储格式,该格式可以是原始的、未压缩的强度值数组或压缩格式,例如 ISO/IEC 15444 指定的格式。 第二种格式基于极坐标图像规范,需要一定的预定义。 处理和图像分割步骤,但会产生更紧凑的数据结构,仅包含虹膜信息。 符合 ISO/IEC 19794 本部分中指定的任一虹膜图像格式的数据旨在嵌入到 ISO/IEC 19785-1 中指定的 CBEFF 生物识别数据块 (BDB) 中符合 CBEFF 的结构中。 [外文原描述]: ISO/IEC 19794-6:2005 specifies two alternative image interchange formats for biometric authentication systems that utilize iris recognition. The first is based on a rectilinear image storage format that may be a raw, uncompressed array of intensity values or a compressed format such as that specified by ISO/IEC 15444. The second format is based on a polar image specification that requires certain pre-processing and image segmentation steps, but produces a much more compact data structure that contains only iris information. Data that comply with either one of the iris image formats specified in ISO/IEC 19794-6:2005 are intended to be embedded in a CBEFF-compliant structure in the CBEFF Biometric Data Block (BDB) as specified in ISO/IEC 19785-1.
英文名称Information technology - Biometric data interchange formats - Part 6: Iris image data