公开(公告)号：US11405582B2

公开(公告)日：2022-08-02

申请号：US16584139

申请日：2019-09-26

申请人： Meta Platforms, Inc.

发明人： Chia-Yang Tsai ,  Handong Li

IPC分类号： H04N7/01 ,  H04N11/24

摘要： The disclosed method may include (1) receiving an input datum to be processed using a non-linear function to produce an output datum, (2) comparing the input datum to a plurality of indexes of a lookup table, where the indexes designate input endpoints of a plurality of piecewise-linear sections approximating the non-linear functions, and where the lookup table further includes, for each of the indexes (a) a slope of the piecewise-linear section corresponding to the index, and (b) an axis intercept of the piecewise-linear section corresponding to the index (2) selecting, based on comparing the input datum to the plurality of indexes, an index that designates the piecewise-linear section associated with the input datum, and (4) calculating, using the slope and the axis intercept corresponding to the selected index, the output data corresponding to the input datum. Video processing systems employing such a method are also disclosed.

公开(公告)号：US10992898B2

公开(公告)日：2021-04-27

申请号：US16575729

申请日：2019-09-19

申请人： Panasonic Intellectual Property Corporation of America

发明人： Masayuki Kozuka ,  Takashi Higashida ,  Yoshihiro Mori ,  Haruyasu Hirakawa ,  Tadamasa Toma

IPC分类号： H04N5/57 ,  H04N11/24 ,  H04N21/435 ,  H04N21/431 ,  H04N5/20 ,  H04N9/64

摘要： Provided is a display method of displaying, on a display device, video of video data where luminance of video is defined by a first EOTF corresponding to HDR. The method includes: acquiring the video data; performing first conversion where the luminance of the video is converted to a luminance corresponding to a dynamic range of a third EOTF, where, with regard to a second EOTF that is part of the first EOTF and is the part of a luminance range where the peak luminance indicated by the peak luminance information included in the acquired video data is maximum luminance, the dynamic range of luminance of the second EOTF is reduced with maximum luminance of the second EOTF matching displayable luminance of the display device, while maintaining the relative relationship of luminance of the second EOTF; and displaying the video on the display device using the result of the first conversion.

公开(公告)号：US10389991B2

公开(公告)日：2019-08-20

申请号：US15991808

申请日：2018-05-29

申请人： THOMSON Licensing

发明人： Pierre Andrivon ,  Philippe Bordes ,  Emmanuel Jolly

IPC分类号： H04N11/20 ,  H04N11/24 ,  H04N19/70 ,  H04N19/46 ,  H04N19/186

摘要： A method for encoding a colour transform is disclosed that comprises encoding first parameters representative of video signal characteristics of colour output decoded pictures remapped by said at least one color transform and encoding second parameters representative of said at least one colour transform.

公开(公告)号：US10321111B2

公开(公告)日：2019-06-11

申请号：US15833669

申请日：2017-12-06

申请人： SONY CORPORATION

发明人： Kouichi Uchimura ,  Ryohei Takahashi

IPC分类号： H04N9/80 ,  H04N5/935 ,  H04N9/87 ,  H04N11/24 ,  G11B20/10 ,  H04N5/85 ,  H04N5/93 ,  G11B27/10 ,  G11B27/32 ,  G11B20/12 ,  G11B27/00

摘要： Image reproduction according to a display apparatus is realized by acquiring image information of an ultra-high definition (UHD) image from a playlist file or a clip information file. A data processing unit that performs a reproduction process of a disc recording data acquires a playlist file or a clip information file as a reproduction control information file corresponding to reproduction data recorded in a disc, determines whether or not an ultra-high definition (UHD) image is recorded in the disc based on recording data of such a file, and, in a case where the ultra-high definition (UHD) image is recorded in the disc, acquires image information of the ultra-high definition (UHD) image from the reproduction control information and controls output data for a display apparatus based on the acquired image information.

公开(公告)号：US10171788B2

公开(公告)日：2019-01-01

申请号：US15593495

申请日：2017-05-12

申请人： Panasonic Intellectual Property Management Co., Ltd.

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

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

摘要： 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：US10171787B2

公开(公告)日：2019-01-01

申请号：US14901870

申请日：2014-07-02

申请人： SONY CORPORATION

发明人： Kazuo Yamamoto ,  Toshiya Hamada ,  Shinobu Hattori ,  Kuniaki Takahashi

IPC分类号： H04N5/93 ,  H04N9/82 ,  G11B20/10 ,  H04N21/4402 ,  H04N21/485 ,  H04N19/85 ,  H04N5/76 ,  G11B27/32 ,  H04N9/64 ,  H04N11/24 ,  H04N9/67 ,  H04N9/69

摘要： The present technology relates to a reproduction device, reproduction method, and recording medium that enable graphics with an appropriate brightness to be displayed on a video having a wide dynamic range of brightness. A recording medium, on which the reproduction device of one aspect of the present technology performs reproduction, records coded data of an extended video that is a video having a first brightness range that is wider than a second brightness range, brightness characteristic information that represents a brightness characteristic of the extended video, and graphics data that is superimposed on the extended video and that has the second brightness range. The reproduction device converts a first pixel value of the graphics to a second pixel value in the brightness characteristic of the extended video represented by the brightness characteristic information, and synthesizes the extended video. The present technology can be applied to players that reproduce contents.

公开(公告)号：US10063828B2

公开(公告)日：2018-08-28

申请号：US15386038

申请日：2016-12-21

申请人： Panasonic Intellectual Property Management Co., Ltd.

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

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

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

摘要： 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：US10051254B2

公开(公告)日：2018-08-14

申请号：US14905610

申请日：2014-07-10

申请人： THOMSON LICENSING

发明人： Pierre Andrivon ,  Philippe Bordes ,  Emmanuel Jolly

IPC分类号： H04N11/20 ,  H04N19/186 ,  H04N19/46 ,  H04N19/70 ,  H04N11/24

CPC分类号： H04N11/20 ,  H04N11/24 ,  H04N19/186 ,  H04N19/46 ,  H04N19/70

摘要： The present invention relates to a method for encoding a color transform. The method includes encoding first parameters representative of video signal characteristics of color output decoded pictures remapped by at least one color transform; and encoding second parameters representative of the at least one color transform.

公开(公告)号：US20180152684A1

公开(公告)日：2018-05-31

申请号：US15385711

申请日：2016-12-20

申请人： Microsoft Technology Licensing, LLC

发明人： Matthew Wozniak ,  Mehmet Kucukgoz ,  Abhijit Sarkar

IPC分类号： H04N9/67 ,  H04N11/24 ,  H04N7/15 ,  H04N7/14

CPC分类号： H04N9/67 ,  G06T5/007 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/20 ,  H04N5/765 ,  H04N7/147 ,  H04N7/15 ,  H04N9/68 ,  H04N11/002

摘要： Innovations in rendering of high dynamic range (“HDR”) video on a display device having enhanced dynamic range (“EDR”) are described. The peak brightness for an EDR display device is lower than the peak brightness for a typical HDR display device but higher than the peak brightness for a typical display device having standard dynamic range. The increased range of brightness values in an EDR display device can be utilized effectively to show bright highlights of the HDR video. For example, decision logic is configured to evaluate a peak brightness of a target display device and select an HDR-to-EDR tone mapping mode. A tone mapper is configured to apply tone mapping to input values for the sample values of HDR video, according to a tone mapping function, thereby producing output values for sample values of EDR video.

公开(公告)号：US20180098045A1

公开(公告)日：2018-04-05

申请号：US15833669

申请日：2017-12-06

申请人： SONY CORPORATION

发明人： Kouichi Uchimura ,  Ryohei Takahashi

IPC分类号： H04N9/87 ,  G11B27/00 ,  H04N11/24 ,  G11B20/12 ,  H04N5/85 ,  G11B20/10 ,  G11B27/32 ,  G11B27/10 ,  H04N5/93

CPC分类号： H04N9/87 ,  G11B20/10 ,  G11B20/1217 ,  G11B27/00 ,  G11B27/105 ,  G11B27/329 ,  G11B2220/2541 ,  H04N5/85 ,  H04N5/93 ,  H04N11/002

摘要： Image reproduction according to a display apparatus is realized by acquiring image information of an ultra-high definition (UHD) image from a playlist file or a clip information file. A data processing unit that performs a reproduction process of a disc recording data acquires a playlist file or a clip information file as a reproduction control information file corresponding to reproduction data recorded in a disc, determines whether or not an ultra-high definition (UHD) image is recorded in the disc based on recording data of such a file, and, in a case where the ultra-high definition (UHD) image is recorded in the disc, acquires image information of the ultra-high definition (UHD) image from the reproduction control information and controls output data for a display apparatus based on the acquired image information.