Information extraction method, information extraction device, program, verification device and registration device

摘要

PPROBLEM TO BE SOLVED: To provide an information extraction method, an information extraction device, a program, a registration device, and a collation device for improving authentication accuracy while suppressing information quantity of an identification subject. PSOLUTION: A common part of silhouettes at a living body portion in images concerned is created as a first three-dimensional image in an object space from a plurality of first images whose viewpoints are set at the surrounding of the living body, a common part of silhouettes at inner surface images at the living body portion in image concerned is created as a second three-dimensional image in the object space from a plurality of second images whose viewpoints are set at the surround of the living body, and a value showing at a cross section of the second three-dimensional image having a prescribed positional relationship to a reference position of the first three-dimensional image is extracted as identification information. PCOPYRIGHT: (C)2008,JPO&INPIT