Change information recognition apparatus and change information recognition method
A change information recognition apparatus comprises a series information storing device for storing series information about a recognition object (a motion picture taken by an image taking device, or the like), and a basic change information storing device for preliminarily storing basic change information corresponding to changes of the series information. The series information storing device feeds the series information to a change state comparing device, and the basic change information storing device feeds the basic change information to the change state comparing device. The change state comparing device compares the change information with the basic change information thus fed, to recognize a change state of the recognition object.
1. 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.
2. The change information recognition apparatus according to claim 1 , wherein the change information acquiring means is image taking means for taking an image of the recognition object,
wherein the change information storing means preliminarily stores the basic change series information in the form of a tubular region on the feature space, and
wherein the change state comparing means grasps the change state of the recognition object defined by a plurality of consecutive images acquired by the change information acquiring means, as a linear projective locus on the feature space, and compares the projective locus with the tubular region to recognize the change state of the recognition object.
3. The change information recognition apparatus according to claim 2 , wherein the change state comparing means compares a continuity property of the basic change series information with a continuity property of the basic change series information with a continuity property of the projective change information to recognize the change state of the recognition object.
4. The change information recognition apparatus according to claim 3 , further comprising learning means for creating the basic change series information, based on the change information of the recognition object acquired by the change information acquiring means.