公开(公告)号：US10687402B1

公开(公告)日：2020-06-16

申请号：US16803394

申请日：2020-02-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Virginie Drugeon ,  Takahiro Nishi ,  Tadamasa Toma

IPC: H04N5/93 ,  H05B47/10 ,  H05B45/37 ,  H02M1/14 ,  H02M1/084 ,  H04N21/236 ,  H04N7/01 ,  H04N19/85 ,  H04N21/434 ,  H04N19/70 ,  H04N21/4402 ,  H04N21/2343 ,  H04N19/98 ,  H02M1/00

Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.

公开(公告)号：US10681788B1

公开(公告)日：2020-06-09

申请号：US16803438

申请日：2020-02-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Virginie Drugeon ,  Takahiro Nishi ,  Tadamasa Toma

IPC: H04N5/93 ,  H05B47/10 ,  H05B45/37 ,  H02M1/14 ,  H02M1/084 ,  H04N21/236 ,  H04N7/01 ,  H04N19/85 ,  H04N21/434 ,  H04N19/70 ,  H04N21/4402 ,  H04N21/2343 ,  H04N19/98 ,  H02M1/00

Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.

公开(公告)号：US10674203B2

公开(公告)日：2020-06-02

申请号：US16025156

申请日：2018-07-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro Nishi ,  Tadamasa Toma

IPC: H04N21/4402 ,  H04N7/01 ,  G09G5/10 ,  H04N21/435 ,  H04N21/431 ,  H04N21/235 ,  H04N21/2343 ,  G06T5/00 ,  G09G5/00 ,  G06F3/14

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.

公开(公告)号：US10440800B2

公开(公告)日：2019-10-08

申请号：US16401830

申请日：2019-05-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Virginie Drugeon ,  Takahiro Nishi ,  Tadamasa Toma

IPC: H04N5/92 ,  H04N5/917 ,  H04N11/02 ,  H05B37/02 ,  H05B33/08 ,  H04N21/236 ,  H02M1/14 ,  H02M1/084 ,  H04N19/70 ,  H04N7/01 ,  H04N21/2343 ,  H04N19/98 ,  H04N19/85 ,  H04N21/434 ,  H04N21/4402 ,  H02M1/00

Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.

公开(公告)号：US10426014B2

公开(公告)日：2019-09-24

申请号：US16401746

申请日：2019-05-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Virginie Drugeon ,  Takahiro NIshi ,  Tadamasa Toma

IPC: H04N5/92 ,  H04N5/917 ,  H05B37/02 ,  H05B33/08 ,  H04N21/236 ,  H02M1/14 ,  H02M1/084 ,  H04N19/70 ,  H04N7/01 ,  H04N21/2343 ,  H04N19/98 ,  H04N19/85 ,  H04N21/434 ,  H04N21/4402 ,  H02M1/00

Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.

公开(公告)号：US10327306B2

公开(公告)日：2019-06-18

申请号：US16103411

申请日：2018-08-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Virginie Drugeon ,  Takahiro Nishi ,  Tadamasa Toma

IPC: H04N5/93 ,  H05B37/02 ,  H04N21/2343 ,  H04N21/236 ,  H04N21/4402 ,  H04N19/70 ,  H04N7/01 ,  H04N21/434 ,  H04N19/85 ,  H04N19/98 ,  H02M1/084 ,  H02M1/14 ,  H05B33/08 ,  H02M1/00

Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.

公开(公告)号：US10171788B2

公开(公告)日：2019-01-01

申请号：US15593495

申请日：2017-05-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadamasa Toma ,  Masayuki Kozuka ,  Hiroshi Yahata ,  Takahiro Nishi ,  Kengo Terada

IPC: H04N9/87 ,  H04N21/431 ,  G11B20/10 ,  H04N11/24 ,  G06F3/14 ,  H04N7/01 ,  H04N7/015 ,  H04N9/64

Abstract: A method to be performed by a playback device includes determining whether the playback device has a function for converting first graphics in a second luminance range narrower than a first luminance range to second graphics in the first luminance range, when the playback device has the function, converting the first graphics to the second graphics, and displaying a video in the first luminance range with the second graphics being superimposed on the video, and when the playback device does not have the function, displaying the video with third graphics different from the second graphics being superimposed on the video.

公开(公告)号：US10123392B2

公开(公告)日：2018-11-06

申请号：US15885535

申请日：2018-01-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Virginie Drugeon ,  Takahiro Nishi ,  Tadamasa Toma

IPC: H04N5/93 ,  H05B37/02 ,  H04N21/236 ,  H04N21/2343 ,  H02M1/084 ,  H02M1/14 ,  H05B33/08 ,  H04N7/01 ,  H02M1/00

Abstract: A data generation method is for generating video data that covers a second luminance dynamic range wider than a first luminance dynamic range and has reproduction compatibility with a first device that does not support reproduction of video having the second luminance dynamic range and supports reproduction of video having the first luminance dynamic range, and includes: generating a video signal to be included in the video data using a second OETF; storing, into VUI in the video data, first transfer function information for identifying a first OETF to be referred to by the first device when the first device decodes the video data; and storing, into SEI in the video data, second transfer function information for identifying a second OETF to be referred to by a second device supporting reproduction of video having the second luminance dynamic range when the second device decodes the video data.

公开(公告)号：US10063828B2

公开(公告)日：2018-08-28

申请号：US15386038

申请日：2016-12-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadamasa Toma ,  Masayuki Kozuka ,  Hiroshi Yahata ,  Takahiro Nishi ,  Kengo Terada

IPC: H04N5/765 ,  H04N9/87 ,  H04N11/24

CPC classification number: H04N9/8715 ,  G06F3/14 ,  G11B20/10 ,  H04N7/0125 ,  H04N7/015 ,  H04N9/642 ,  H04N9/87 ,  H04N11/24 ,  H04N21/431

Abstract: A method to be performed by a playback device includes determining whether the playback device has a function for converting first graphics in a second luminance range narrower than a first luminance range to second graphics in the first luminance range, when the playback device has the function, converting the first graphics to the second graphics, and displaying a video in the first luminance range with the second graphics being superimposed on the video, and when the playback device does not have the function, displaying the video with third graphics different from the second graphics being superimposed on the video.

公开(公告)号：US10051234B2

公开(公告)日：2018-08-14

申请号：US15595043

申请日：2017-05-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tadamasa Toma ,  Kengo Terada ,  Masayuki Kozuka ,  Takahiro Nishi

IPC: H04N7/01 ,  G09G5/02 ,  G06T5/00

Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.