Image transmitting apparatus, image receiving apparatus, and image transmission system
AssigneeKabushiki Kaisha Toshiba
InventorHisashi Sasaki
Life of this patent
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Abstract
An image transmitter has a color difference differential calculating unit configured to calculate color difference differential data relating to a difference between a current predicting value predicted based on previous image data and current actual image data, a multi-valued generator configured to generate multi-valued data corresponding to the color difference differential data based on the color difference differential data, statistical properties of the image data and a signal amplitude of the multi-valued data to be generated, and a transmitter configured to transmit the multi-valued data through at least one transmission line.
Claims20
An image transmitter, comprising:
- a color difference differential calculating unit configured to calculate color difference differential data relating to a difference between a current predicting value predicted based on previous image data and current actual image data;
- a multi-valued generator configured to generate multi-valued data corresponding to the color difference differential data based on the color difference differential data, statistical properties of the image data and a signal amplitude of the multi-valued data to be generated;
- and
- a transmitter configured to transmit the multi-valued data through at least one transmission line.
The image transmitter according to claim i, comprising a modulo reduction unit configured to generate the modulo reduced data of the color difference differential data,
- wherein the multi-valued generator generates the multi-valued data corresponding to the modulo reduced data.
An image receiver, comprising:
- a receiver configured to receive multi-valued data generated based on color difference differential data relating to a difference between a current predicting value predicted by a previous image data and current actual image data, statistical properties of the image data, and a signal amplitude of the multi-valued data to be generated, through at least one transmission line;
- a decoder configured to decode the received multi-valued data to generate the color difference differential data relating to a difference between color difference data corresponding the current actual image data and color difference data predicted by the previous image data;
- and
- an image restoring unit configured to restore the current actual image data based on the color difference differential data.
An image transmission system, comprising:
- an image transmitter configured to transmit image data;
- and
- an image receiver configured to receive the image data,
- wherein the image transmitter includes:
- a color difference differential calculating unit configured to calculate color difference differential data relating to a difference between a current predicting value predicted based on previous image data and current actual image data;
- a multi-valued generator configured to generate multi-valued data corresponding to the color difference differential data based on the color difference differential data, statistical properties of the image data and a signal amplitude of the multi-valued data to be generated;
- and
- a transmitter configured to transmit the multi-valued data through at least one transmission line, and
- wherein the image receiver includes:
- a receiver configured to receive the multi-valued data transmitted via the transmission line;
- a decoder configured to decode the received multi-valued data to generate the color difference differential data relating to a difference between color difference data corresponding the current actual image data and color difference data corresponding to a current predicting value predicted by the previous image data;
- and
- an image restoring unit configured to restore the current actual image data based on the color difference differential data.
Dependencies are inferred from the claim text.