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公开(公告)号：US12022051B2
公开(公告)日：2024-06-25
申请号：US17873038
申请日：2022-07-25
发明人： Pierre Andrivon , Philippe Bordes , Emmanuel Jolly
IPC分类号： H04N11/20 , H04N11/24 , H04N19/186 , H04N19/46 , H04N19/70
CPC分类号： H04N11/20 , H04N11/24 , H04N19/186 , H04N19/46 , H04N19/70
摘要： A method includes encoding a first message including first parameters for a first color transform that transforms a video signal into a first color-mapped video signal; encoding a second message including second parameters for a second color transform that transforms the video signal into a second color-mapped video signal; and encoding the video signal, the first message, and the second message in a video bitstream. A method includes decoding the video bitstream into the video signal, the first message including the first parameters, and the second message including the second parameters, and performing at least one of the following: displaying the video signal; transforming the video signal into the first color-mapped video signal by applying the first color transform and displaying the first color-mapped video signal; and transforming the video signal into the second color-mapped video signal by applying the second color transform and displaying the second color-mapped video signal.
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公开(公告)号：US11445227B2
公开(公告)日：2022-09-13
申请号：US16973739
申请日：2019-02-06
IPC分类号： H04N21/2343 , H04N11/24 , G11B27/036 , H04N9/64 , H04N21/236 , H04N21/81
摘要： A method, a programmed computer system, for example, a network-based hardware device, and a machine readable medium containing a software program for modifying a high definition video data stream in real time, with no visible delays, to add content on a frame by frame basis, thus simultaneously compositing multiple different customized linear views, for purposes such as creating and broadcasting targeted advertising in real time. The method employs conventional video processing technology in novel and inventive ways to achieve the desired objective by passing data selected by the program back and forth between a GPU and a CPU of a computer. The method is also usable with data streams having lower than high definition where real time processing is desired and yields better results than conventional methods. In such applications, all processing may be done by the CPU of a sufficiently powerful general-purpose computer.
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公开(公告)号：US20210274143A1
公开(公告)日：2021-09-02
申请号：US17234366
申请日：2021-04-19
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 includes encoding target parameters describing characteristics for a target color space for a video picture to be displayed in the target color space and encoding color transform parameters that facilitate remapping the video picture to the target color space. A method includes decoding target parameters describing characteristics for a target color space for a video picture to be displayed in the target color space, decoding color transform parameters that facilitate remapping the video picture to the target color space, remapping the video picture to the target color space utilizing at least one of the decoded color transform parameters, and displaying the remapped video picture in the target color space. The color transform parameters represent at least three successively applied color transforms comprising a first color transform followed by a second color transform followed by a third color transform. Related apparatus for each method are described.
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公开(公告)号：US10819974B2
公开(公告)日：2020-10-27
申请号：US15398408
申请日：2017-01-04
申请人： Saturn Licensing LLC
发明人： Shinsuke Takuma , Michio Miyano
IPC分类号： H04N11/24 , H04N21/488 , H04N13/00 , H04N13/359 , H04N13/139 , H04N13/161 , H04N13/194 , H04N13/183 , H04N13/341 , H04N13/356 , H04N21/4363 , H04N21/81 , H04N21/431 , H04N21/41 , H04N5/445
摘要： An apparatus may include a control unit to determine whether a display state notification indicating a dimensional display process exists. The control unit may set an output form of display data to be displayed on image data to an output form corresponding to a display state indicated by the display state notification.
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95.发明申请公开(公告)号：US20200236328A1
公开(公告)日：2020-07-23
申请号：US16376232
申请日：2019-04-05
申请人： Dean Drako , Steven Roskowski
发明人： Dean Drako , Steven Roskowski
摘要： A high definition surveillance video storage optimization system executes purging directives according to policy and retention meta data. Segments of video are purged from storage when thresholds of retention metrics are applied and when policy permits. Retention metrics are determined from acoustic sound energy, radiation energy, access control events, and movement. Policies reflect calendars and elapsed time, percentage of available storage, statutory and judicial mandates, and utility of the stored segments. Extrinsic sensor data and operations are recorded into non-transitory retention meta data stores. Metrics are transformed into retention flags at either time of recordation or time of purgation. Security file storage includes metadata about the environment acquired by sensors include doors, audio noise, object identification and tracking and inputs which influence retention or purging. A circuit filters for motion and stores metadata per segment. Meta data enables content based purging of least consequential files.
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公开(公告)号：US10582177B2
公开(公告)日：2020-03-03
申请号：US16282687
申请日：2019-02-22
发明人： Tadamasa Toma , Masayuki Kozuka , Hiroshi Yahata , Takahiro Nishi , Kengo Terada
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.
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公开(公告)号：US20200014880A1
公开(公告)日：2020-01-09
申请号：US16575729
申请日：2019-09-19
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.
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公开(公告)号：US10462439B2
公开(公告)日：2019-10-29
申请号：US15765338
申请日：2016-10-03
申请人： Vid Scale, Inc.
发明人： Yuwen He , Yan Ye , Louis Kerofsky
摘要： Color correction in high dynamic range video (HDR) using 2D look-up table (LUT) may be provided. The color correction may be applied in a decoder after decoding the HDR video signal. For example, the color correction may be applied before, during, or after chroma upsampling of the HDR video signal. The 2D LUT may include a representation of the color space of the HDR video signal. The color correction may include applying triangle interpolation to the sample values of the color component of the color space. The 2D LUT may be estimated by an encoder and signaled to the decoder. The encoder may decide to reuse a prior-signaled 2D LUT or use a new 2D LUT.
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公开(公告)号：US10462407B2
公开(公告)日：2019-10-29
申请号：US15728550
申请日：2017-10-10
IPC分类号： H04N5/57 , H04N11/24 , H04N5/20 , H04N9/64 , H04N21/431 , H04N21/435
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.
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公开(公告)号：US20190238814A1
公开(公告)日：2019-08-01
申请号：US16381812
申请日：2019-04-11
发明人： Masayuki KOZUKA , Takahiro NISHI , Kengo TERADA , Tadamasa TOMA
IPC分类号： H04N9/64 , H04N11/24 , H04N5/202 , H04N9/87 , H04N21/4402 , H04N21/4363 , G11B27/00 , G06T5/00 , H04N21/431 , H04N21/45 , H04N21/435 , G09G5/10 , G09G5/00 , H04N21/234
摘要： In a reproduction method, a video stream has a first dynamic range where a maximum value of a luminance dynamic range is more than a predetermined luminance value, and a display apparatus displays video in a second dynamic range narrower than the first dynamic range. The reproduction method displays video based on a first reproduction signal or a second reproduction signal. The first reproduction signal is obtained by: reproducing a first video stream quantized based on a hybrid OETF without performing luminance conversion; or reproducing the first video stream subjected to the luminance conversion. The second reproduction signal is obtained by performing the luminance conversion on a second video stream not quantized based on the hybrid OETF, and reproducing the second video stream subjected to the luminance conversion.
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