Image display device, image display method and image display system
An image display system is configured such that an image display device and an image processing device are connected to each other through a network. The image display device is provided with: an instruction information generation unit for generating instruction information pertaining to image-processing to be performed on an image input signal; an image signal transmission unit for transmitting the instruction information to the image processing device; a corrected signal reception unit for receiving a corrected image input signal obtained through image-processing performed by the image processing device on the basis of the instruction information; and a display signal output unit for outputting an image output signal based on the corrected image input signal, to an object where an image is to be displayed. The image processing device receives the image input signal connected through the network and performs image-processing on the image input signal according to the instruction information.
1. An image display device connected to a network, the image display device comprising:
an input interface configured to receive a first image signal from a source;
an instruction information generation processor configured to generate instruction information related to image improvement processing to be performed on the first image signal;
a transmitter configured to transmit the instruction information to an image processing device via the network;
a receiver configured to receive, from the image processing device via the network, a differential image signal that is a difference between the first image signal and a second image signal which is generated by the image processing device by performing the image improvement processing on the first image signal based on the instruction information; and
a display output interface configured to output, to a target display, an image output signal or a projection light which is generated by using the differential image signal and the first image signal, wherein:
the transmitter is further configured to transmit contract information to the image processing device, and the contract information includes identification information of the image display device and information of a type or content of the image improvement processing defined between a user of the image display device and a service provider which manages or possesses the image processing device,
the receiver is further configured to receive notification information from the image processing device, the notification information representing a result of authentication of the image display device by the image processing device based on the contract information, and
the transmitter is further configured to transmit the instruction information including the type or content of image processing defined by the contract information based on the notification information received by the receiver.
2. The image display device according to claim 1 ,
wherein the transmitter is further configured to output the first image signal which is received by the input interface to the image processing device.
3. The image display device according to claim 1 , wherein
an external device serving as an image signal providing source is connected to the network,
the transmitter is further configured to transmit, to the image processing device, image signal acquisition instruction information which causes the first image signal to be transmitted from the external device to the image processing device, and
the input interface is further configured to receive the first image signal from the external device as the source.
4. The image display device according to claim 1 , wherein the target display is a monitor to which the image output signal is supplied.
5. The image display device according to claim 1 , wherein the target display is a screen to which the projection light is projected.
6. An image display method of an image display device that is connected to an image processing device via a network, the image display method comprising the steps of:
receiving a first image signal from a source;
transmitting contract information, the contract information including identification information of the image display device and information of a type or content of image improvement processing defined in advance between a user of the image display device and a service provider which manages or possesses the image processing device, to the image processing device;
authenticating, by the image processing device, the image display device based on the contract information;
transmitting notification information representing a result of the authenticating from the image processing device;
receiving, by the image display device, the notification information transmitted from the image processing device;
transmitting, from the image display device to the image processing device, instruction information including the type or content of image processing defined by the contract information based on the received notification information;
receiving, by the image processing device, the first image signal;
generating, by the image processing device, a differential image signal that is a difference between the first image signal and a second image signal which is generated by the image processing device by performing the image improvement processing on the first image signal based on the instruction information;
transmitting the differential image signal from the image processing device to the image display device; and
outputting, by the image display device, a processed image signal to a target display, the processed image signal generated by using the differential image signal and the first image signal.
7. An image display system comprising an image display device and an image processing device connected to the image display device via a network,
the image display device comprising:
an input interface configured to receive a first image signal from a source;
an instruction information generation processor configured to generate instruction information related to image improvement processing to be performed on the first image signal;
a transmitter configured to transmit the instruction information to the image processing device;
a receiver configured to receive, from the image processing device via the network, a differential image signal that is a difference between the first image signal and a second image signal which is generated by the image processing device by performing the image improvement processing on the first image signal based on the instruction information; and
a display output interface configured to output, to a target display, an image output signal or a projection light which is generated by using the differential image signal and the first image signal,
wherein:
the transmitter is further configured to transmit contract information, to the image processing device, and the contract information includes identification information on the image display device and information on a type of content of the image improvement processing defined between a user of the image display device and a service provider which manages or possesses the image processing device,
the image processing device is configured to authenticate the image display device based on the contract information and transmit notification information representing a result of the authentication of the image display device,
the receiver is further configured to receive, from the image processing device, the notification information, and
the transmitter is further configured to transmit the instruction information including the type or content of image processing defined by the contract information based on the notification information received by the receiver.
8. The image display system according to claim 7 , wherein
an external device, that is a device different from the image display device and transmits the first image signal to the image processing device, is connected to the image processing device via the network, and
the image processing device receives the first image signal from the external device as the source.
9. The image display system according to claim 7 , wherein the target display is a monitor to which the image output signal is supplied.
10. The image display system according to claim 7 , wherein the target display is a screen to which the projection light is projected.