Image sensing control method and apparatus, image transmission control method, apparatus, and system, and storage means storing program that implements the method
First Claim
1. An image transmission system including an image sensing control apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, and a plurality of clients,the image sensing control apparatus comprising:
- determination means for determining whether or not a client being a destination of the image signal has a right of an operation of the image sensing device;
process control means for selecting image quality of the image signal from the image sensing device in accordance with a determination result of said determination means and processing the image data based on the image quality; and
transmission means for transmitting the image signal processed by said process control means to the client via the network, wherein the client requests the image signal sensed by the image sensing device and acquires of the right of an operation of the image sensing device.
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Accused Products
Abstract
This invention relates to an image sensing control method and apparatus, and an image transmission control method, apparatus, and system, in which a camera such as a video camera is connected, the operation of the camera is controlled in accordance with a control command sent from a client via a network, and an image signal sensed by the camera is transmitted to the client via the network. Upon reception of a control command of the pan and tilt angles, zoom value, or the like of the camera from the client, the position control of the camera is done in accordance with the command, and transmission of the image signal sensed by the camera is suspended until the instructed operation is complete. Alternatively, upon reception of such control command, the image signal sensed by the camera is compressed at a high compression ratio, and the compressed image signal is transmitted. On the client device, received image signal is directly displayed without buffering during the control operation, thus allowing real-time image display during the position control of the camera.
221 Citations
22 Claims
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1. An image transmission system including an image sensing control apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, and a plurality of clients,
the image sensing control apparatus comprising: - determination means for determining whether or not a client being a destination of the image signal has a right of an operation of the image sensing device;
process control means for selecting image quality of the image signal from the image sensing device in accordance with a determination result of said determination means and processing the image data based on the image quality; and
transmission means for transmitting the image signal processed by said process control means to the client via the network, wherein the client requests the image signal sensed by the image sensing device and acquires of the right of an operation of the image sensing device. - View Dependent Claims (2, 3)
- determination means for determining whether or not a client being a destination of the image signal has a right of an operation of the image sensing device;
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4. An image transmission system including an image sensing control apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, and a plurality of clients,
the image sensing control apparatus comprising: -
transmission means for transmitting an image signal to a client; and
storage capacity control means for instructing a storage capacity of a buffer for temporarily storing the image signal in the client in accordance with whether the client has the right to access the image sensing device, wherein the client switches the storage capacity of the buffer for temporarily storing the image signal in accordance with an instruction instructed by said storage capacity control means. - View Dependent Claims (5, 6)
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7. An image transmission method in an image transmission system including an image sensing control apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, and a plurality of clients,
the method comprising: -
a determination step of determining whether or not a client being a destination of an image signal has a right of an operation of the image sensing device;
a process control step of selecting image quality of the image signal from the image sensing device in accordance with a determination result in said determination step and processing the image data based on the image quality; and
a transmission step of transmitting the image signal processed in said process control step to the client via the network, wherein the client requests the image signal sensed by the image sensing device and acquires of the right of an operation of the image sensing device. - View Dependent Claims (8, 9)
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10. An image transmission method in an image transmission system including an image sensing control apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, and a plurality of clients,
the method comprising: -
a transmission step of transmitting an image signal to a client;
an instruction step of instructing a storage capacity of a buffer for temporarily storing the image signal in the client in accordance with whether the client has the right to access the image sensing device, and a step of switching the storage capacity of the buffer for temporarily storing the image signal in accordance with an instruction instructed in said instruction step. - View Dependent Claims (11, 12)
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13. An image sensing control apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, comprising:
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determination means for determining whether or not a client being a destination of the image signal has a right of an operation of the image sensing device, in a case where the client requests an image signal sensed by the image sensing device;
process control means for selecting image quality of the image signal from the image sensing device in accordance with a determination result of said determination means and processing the image data based on the image quality; and
transmission means for transmitting the image signal processed by said process control means to the client via the network. - View Dependent Claims (14, 15)
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16. An image sensing control apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, comprising:
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transmission means for transmitting an image signal to a client in response to a request from the client; and
storage capacity control means for instructing a storage capacity of a buffer for temporarily storing the image signal in the client in accordance with whether the client has the right to access the image sensing device.
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17. An image transmitting apparatus for transmitting an image signal sensed by an image sensing device to a client via a network, comprising:
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determination means for determining whether or not a client has a right of an operation of the image sensing device;
generation means for generating an image signal having an image quality in accordance with a determination result of said determination means; and
transmission means for transmitting the image signal generated by said generation means to the client. - View Dependent Claims (18, 19)
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20. A method of transmitting an image signal sensed by an image sensing device to a client via a network, comprising the steps of:
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determining whether or not a client has a right of an operation of the image sensing device;
generating an image signal having an image quality decided in accordance with a determination result in said determining step; and
transmitting the image signal generated in said generating step to the client. - View Dependent Claims (21, 22)
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Specification