Patent ID: 7302086

Claim:
A change information recognition apparatus comprising; change information acquiring means for acquiring change information of a recognition object; basic change information storing means for preliminarily storing basic change states of the recognition object as basic change information; and change state comparing means for comparing the change information of the recognition object acquired by the change information acquiring means, with the basic change information preliminarily stored and thereby recognizing a change state of the recognition object; wherein the basic change information storing means stores the basic change information in the form of change information units resulting from division of the change state of the recognition object into basic units, wherein the basic change information is basic change series information set as series of information on a feature space, wherein the change information recognition apparatus further comprises a change information projection device for projecting change series information of the recognition object acquired by the change information acquiring means, onto the feature space to create projective change information, and wherein, instead of comparing the change information of the recognition object with the basic change information, the change state comparing means compares the projective change information with the basic change series information to recognize the change state of the recognition object.