Transmitting device, transmitting method, receiving device, and receiving method
AssigneeSony Corporation
InventorIkuo Tsukagoshi
Life of this patent
Estimating the term…
Abstract
To enable a receiving side to appropriately perform processing of obtaining display image data from transmission video data having a predetermined photoelectric conversion characteristic. Input video data is processing and transmission video data having a predetermined photoelectric conversion characteristic is obtained. Encoding processing is applied to the transmission video data and a video stream is obtained. A container of a predetermined format, including the video stream, is transmitted. Information indicating a photoelectric conversion of the input video data is inserted into the video stream and/or the container.
Claims15
A transmitting device comprising:
- processing circuitry configured to
- perform dynamic range conversion for input video data having a first dynamic range characteristic, to obtain video data having a second dynamic range characteristic, wherein the dynamic range conversion is performed on the basis of conversion information for converting the first dynamic range characteristic into the second dynamic range characteristic,
- encode the video data having the second dynamic range characteristic to obtain a video stream,
- insert the conversion information as metadata into the video stream, the inserted conversion information including at least one parameter that defines a curve within a first luminance value range in a first mapping from the first dynamic range characteristic to the second dynamic range characteristic, and
- transmit the video stream including the encoded video data and the inserted metadata of the at least one parameter that defines the curve within the first luminance value range.
A receiving device comprising:
- processing circuitry configured to
- decode a received video stream to obtain video data having a second dynamic range characteristic,
- extract conversion information for converting the second dynamic range characteristic into a first dynamic range characteristic from metadata included in the video stream with the video data, the conversion information, which is extracted from the video stream, includes at least one parameter that defines a curve within a first luminance value range in a first mapping from the first dynamic range characteristic to the second dynamic range characteristic, and
- perform, based on the conversion information, dynamic range conversion for the video data having the second dynamic range characteristic, to obtain output video data having the first dynamic range characteristic.
A receiving method comprising:
- decoding a received video stream to obtain video data having a second dynamic range characteristic,
- extracting conversion information for converting the second dynamic range characteristic into a first dynamic range characteristic from metadata included in the video stream with the video data, the conversion information, which is extracted from the video stream, includes at least one parameter that defines a curve within a first luminance value range in a first mapping from the first dynamic range characteristic to the second dynamic range characteristic, and
- performing, based on the conversion information, dynamic range conversion for the video data having the second dynamic range characteristic, to obtain output video data having the first dynamic range characteristic.
Dependencies are inferred from the claim text.