ISO/IEC 19794-6:2005 信息技术 生物统计学数据交换格式-第6部份: 虹膜图像数据
标准编号:ISO/IEC 19794-6:2005
中文名称:信息技术 生物统计学数据交换格式-第6部份: 虹膜图像数据
英文名称:Information technology — Biometric data interchange formats — Part 6: Iris image data
发布日期:2005-06
标准范围
该版本的标准例外地有效期至2033年。ISO/IEC 19794-6:20 05为利用虹膜识别的生物特征认证系统规定了两种可选的图像交换格式。第一种是基于直线图像存储格式,其可以是强度值的原始、未压缩阵列或诸如ISO/IEC 15444规定的压缩格式。第二种格式基于极坐标图像规范,其需要某些预处理和图像分割步骤,但产生仅包含虹膜信息的更紧凑的数据结构。符合ISO/IEC 19794-6:20 05中规定的任一虹膜图像格式的数据旨在嵌入如ISO/IEC 19785-1中规定的CBEFF生物计量数据块(BDB)中的CBEFF兼容结构中。
This edition of the standard exceptionally remains valid until 2033.
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.
标准预览图


