Surveillance recorder and its method
First Claim
1. A surveillance recorder apparatus comprising:
- a picture input unit for inputting a surveillance picture;
a moving object detection unit for detecting a moving object from a surveillance picture inputted by the picture input unit;
a face image detection unit for detecting, a face image from the object detected by the moving object detection unit, a part having an elliptical outline as a face image;
an identity judgment unit for judging whether the face image newly detected by the face image detection unit is the same person as a face image detected last time or not based on positions of each face image;
and a storage image choice unit for, when a newly detected face image has been judged to be of the same person by the identity judgment unit, choosing another at least one face image from face image(s) of the same person stored in a recording medium and the newly detected face image; and
an image storage unit for, when the newly detected face image has been chosen by the storage image choice unit, storing in the recording medium both the newly detected face image and information for searching for the newly detected face image together, whereinthe identity judgment unit detects a direction of movement of face images detected one after another by the face image detection unit and, if having detected a change in a direction of movement, judges that the face image is of another person.
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Abstract
A surveillance recorder (10) comprises: a picture input unit (12) for inputting a surveillance picture; a moving object detection unit (18) for detecting a moving object from a surveillance picture inputted by the picture input unit (12); a face image detection unit (20) for detecting, from an object detected by the moving object detection unit (18), a part having an elliptical outline as a face image; an identity judgment unit (22) for judging whether a face image newly detected by the face image detection unit (20) is of a same person as a face image detected last time or not based on positions of each face image; a storage image choice unit (24) for, when a newly detected face image has been judged to be of a same person by the identity judgment unit (22), choosing one face image from a face image of the same person stored in a recording medium (16) and the newly detected face image; and an image storage unit (26) for, when a newly detected face image has been chosen by the storage image choice unit (24), storing in the recording medium (16) both the newly detected face image and information for searching for the face image together. This allows an image suitable for storage to be detected from a surveillance picture.
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Citations
14 Claims
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1. A surveillance recorder apparatus comprising:
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a picture input unit for inputting a surveillance picture; a moving object detection unit for detecting a moving object from a surveillance picture inputted by the picture input unit; a face image detection unit for detecting, a face image from the object detected by the moving object detection unit, a part having an elliptical outline as a face image; an identity judgment unit for judging whether the face image newly detected by the face image detection unit is the same person as a face image detected last time or not based on positions of each face image;
anda storage image choice unit for, when a newly detected face image has been judged to be of the same person by the identity judgment unit, choosing another at least one face image from face image(s) of the same person stored in a recording medium and the newly detected face image; and an image storage unit for, when the newly detected face image has been chosen by the storage image choice unit, storing in the recording medium both the newly detected face image and information for searching for the newly detected face image together, wherein the identity judgment unit detects a direction of movement of face images detected one after another by the face image detection unit and, if having detected a change in a direction of movement, judges that the face image is of another person. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A surveillance recording method comprising:
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a picture input step of using a picture input unit for inputting a surveillance picture into a computerized control unit; a moving object detection step of using the control unit for detecting a moving object from the surveillance picture inputted in the picture input step; a face image detection step of using the control unit for detecting, a face image from the object detected in the moving object detection step, a part having an elliptical outline as a face image; an identity judgment step of using the control unit for judging whether the face image newly detected in the face image detection step is of the same person as another at least one face image detected last time or not based on positions of each face image;
anda storage image choice step of using the control unit for choosing a face image to be stored from a plurality of face images that have been judged to be of the same person in the identity judgment step; and an image storage step of storing in a recording medium both the face image chosen in the storage image choice step and information for searching for the newly detected face image together, wherein the identity judgment step includes detecting a direction of movement of face images detected one after another and, if having detected a change in a direction of movement, judges that the face image is of another person.
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14. A surveillance recording method comprising:
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a picture input step of using a picture input unit for inputting a surveillance picture into a computerized control unit; a moving object detection step of using the control unit for detecting a moving object from the surveillance picture inputted in the picture input step; a face image detection step of using the control unit for detecting, from the object detected in the moving object detection step, a part having an elliptical outline as a face image; an identity judgment step of using the control unit for judging whether the face image newly detected in the face image detection step is of the same person as another face image detected last time or not based on positions of each face image; a storage image choice step of using the control unit for, when the newly detected face image has been judged to be of the same person in the identity judgment step, choosing one from the another face image of the same person stored in a recording medium and the newly detected face image; and an image storage step of, when the newly detected face image has been chosen in the storage image choice step, storing in the recording medium both the newly detected face image and information for searching for the another face image together, wherein the identity judgment step includes detecting a direction of movement of face images detected one after another and, if having detected a change in a direction of movement, judges that the face image is of another person.
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Specification