Transmission method, reception method, transmitting device, and receiving device
First Claim
Patent Images
1. A transmission method, comprising:
- obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) and an electro-optical transfer function (EOTF) as image signal characteristics of the image; and
transmitting a signal including the image and the image signal characteristics information,wherein the image is an image for data broadcasting, and the signal is a data broadcast signal,in the transmitting of the signal, the data broadcast signal is transmitted through the data broadcasting,the transmission method further comprises;
obtaining video for basic broadcasting different from the data broadcasting;
converting, when the image signal characteristics of the image for the data broadcasting and image signal characteristics of the video for the basic broadcasting are different, the image signal characteristics of at least one of the image for the data broadcasting or the video for the basic broadcasting to obtain matched image signal characteristics of the image for the data broadcasting and the video for the basic broadcasting; and
transmitting, through the basic broadcasting, a basic broadcast signal including the video for the basic broadcasting and image signal characteristics information indicating the matched image signal characteristics, andthe image signal characteristics information included in the data broadcast signal indicates one of the OETF and the EOTF as the matched image signal characteristics.
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Abstract
A transmission method in the present disclosure includes; obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) or an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information. According to the transmission method in the present disclosure, a receiving device that received a high dynamic range (HDR) image and a standard dynamic range (SDR) image transmitted through broadcasting or the like can display these images appropriately.
5 Citations
9 Claims
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1. A transmission method, comprising:
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obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) and an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information, wherein the image is an image for data broadcasting, and the signal is a data broadcast signal, in the transmitting of the signal, the data broadcast signal is transmitted through the data broadcasting, the transmission method further comprises; obtaining video for basic broadcasting different from the data broadcasting; converting, when the image signal characteristics of the image for the data broadcasting and image signal characteristics of the video for the basic broadcasting are different, the image signal characteristics of at least one of the image for the data broadcasting or the video for the basic broadcasting to obtain matched image signal characteristics of the image for the data broadcasting and the video for the basic broadcasting; and transmitting, through the basic broadcasting, a basic broadcast signal including the video for the basic broadcasting and image signal characteristics information indicating the matched image signal characteristics, and the image signal characteristics information included in the data broadcast signal indicates one of the OETF and the EOTF as the matched image signal characteristics. - View Dependent Claims (2, 3, 4)
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5. A reception method, comprising:
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receiving a first image and first image signal characteristics information indicating image signal characteristics of the first image; receiving a second image and second image signal characteristics information indicating image signal characteristics of the second image; converting, when the first image signal characteristics information and the second image signal characteristics information are different, the image signal characteristics of at least one of the first image or the second image to obtain matched image signal characteristics of the first image and the second image; and simultaneously displaying the first image and the second image having the matched image signal characteristics, wherein the first image signal characteristics information indicates one of an opto-electrical transfer function (OETF) and an electro-optical transfer function (EOTF) as the image signal characteristics of an image corresponding to one of a first dynamic range and a second dynamic range that is wider than the first dynamic range, and the second image signal characteristics information indicates one of the OETF and EOTF as the image signal characteristics of an image corresponding to the other of the first dynamic range and the second dynamic range. - View Dependent Claims (6, 7, 8, 9)
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Specification