Access control apparatus, access control method, and access control program
AssigneeCanon Kabushiki Kaisha
InventorsTetsu Fukuda, Tomoyuki Ohno
Life of this patent
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Abstract
Additional information indicating photographic conditions for a received image signal is compared with additional information indicating photographic conditions for an access target image signal. If the both conditions satisfy a predetermined relationship, an access to the access target image signal is permitted.
Claims9
An access control apparatus for controlling an access to an image signal through a network, the image signal being obtained by photographing, comprising:
- a communication unit that communicates with an external apparatus through the network;
- and
- a control unit that compares first additional information added to an image signal received from the external apparatus with second additional information added to an image signal stored in a storage device, and that controls the access from the external apparatus to the stored image signal according to a result of the comparison,
- wherein both the first and second additional information includes at least one of time information and location information which respectively indicate when and where the image signal is obtained by the photographing.
An access control method for controlling an access from an external apparatus to an image signal through a network, the image signal being obtained by photographing, the method comprising the steps of:
- receiving an image signal having first additional information from the external apparatus;
- comparing the first additional information of the received image signal with second additional information added to an image signal stored in a storage device;
- and
- controlling access from the external apparatus to the stored image signal according to a result of the comparison,
- wherein the first and second additional information includes at least one of time information and location information which respectively indicate when and where the image signal is obtained by the photographing.
A computer-readable medium on which is stored an access control program for causing an access control apparatus that controls an access from an external apparatus to an image signal through a network, the image signal being obtained by photographing, to execute the steps of:
- receiving an image signal having first additional information from the external apparatus;
- comparing the first additional information of the received image signal with second additional information added to an image signal stored in a storage device;
- and
- controlling access from the external apparatus to the stored image signal according to a result of the comparison,
- wherein the first and second additional information includes at least one of time information and location information which respectively indicate when and where the image signal is obtained by the photographing.
Dependencies are inferred from the claim text.