ISO+IEC+19794 Minutia 生物數據交換國際標準-指紋特征點 2 Conformance 3 Normative references 4 Terms and definitions 5 Symbols and abbreviated terms 6 Minutiae Extraction 6.1 Principle 6.2 Minutia Type 6.3 Minutia Location 6.3.1 Coordinate System 6.3.2 Minutia Placement on a Ridge Ending (encoded as Valley Skeleton