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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
Inventor： Masayuki KOZUKA , Takahiro NISHI , Kengo TERADA , Tadamasa TOMA
IPC: 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
Abstract: 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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公开(公告)号：US20190075296A1
公开(公告)日：2019-03-07
申请号：US16184323
申请日：2018-11-08
Inventor： Tadamasa TOMA , Masayuki KOZUKA , Takahiro NISHI , Kengo TERADA
IPC: H04N19/136 , H04N19/85 , H04N21/462 , H04N21/4363 , H04N21/41 , H04N21/63
Abstract: A data output apparatus includes: a video decoder that decodes a video stream to generate a first video signal; an external metadata acquisition unit that acquires one or more pieces of metadata corresponding to one or more first conversion modes; an HDR metadata interpreter that interprets one of the one or more pieces of metadata to acquire characteristic data and conversion auxiliary data; a DR converter that supports one or more second conversion modes and performs conversion processing of a luminance range of the first video signal based on the conversion auxiliary data to generate a second video signal; and an HDMI output unit that outputs the second video signal to a display apparatus.
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63.发明申请公开(公告)号：US20180352632A1
公开(公告)日：2018-12-06
申请号：US16103411
申请日：2018-08-14
Inventor： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
CPC classification number: H05B37/0209 , H02M1/084 , H02M1/14 , H02M2001/0009 , H04N7/0117 , H04N19/70 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/23614 , H04N21/4345 , H04N21/4402 , H05B33/0815
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.
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64.发明申请公开(公告)号：US20170251161A1
公开(公告)日：2017-08-31
申请号：US15596218
申请日：2017-05-16
Inventor： Tadamasa TOMA , Masayuki KOZUKA , Takahiro NISHI , Kengo TERADA
IPC: H04N5/57 , H04N7/08 , H04N21/4363 , H04N21/436 , H04N21/84
CPC classification number: H04N5/57 , G09G5/005 , G09G5/006 , G09G5/10 , G09G2320/0673 , G09G2340/0407 , G09G2340/0428 , G09G2370/04 , G09G2370/12 , G11B20/10 , H04N5/20 , H04N5/765 , H04N5/775 , H04N7/08 , H04N9/68 , H04N21/436 , H04N21/43622 , H04N21/43635 , H04N21/84
Abstract: An apparatus according to one aspect of the present disclosure includes: one or more memories, and circuitry which, in operation; decodes a video stream to generate a first video signal with a first luminance range; acquires characteristic data indicating the luminance range of the first video signal; converts the characteristic data into control information according to a predetermined transmission protocol; and outputs the control information in accordance with the predetermined transmission protocol.
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公开(公告)号：US20170237959A1
公开(公告)日：2017-08-17
申请号：US15584335
申请日：2017-05-02
Inventor： Tadamasa TOMA , Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI
CPC classification number: H04N7/0125 , G06F3/14 , G06T5/009 , G09G5/026 , G09G5/10 , G09G2320/0276 , G09G2370/04 , H04N5/20 , H04N5/2351 , H04N5/243 , H04N7/01 , H04N7/015 , H04N9/64 , H04N9/642 , H04N11/20 , H04N21/4621
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.
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Patent Agency Ranking
公开(公告)号：US20250157044A1
公开(公告)日：2025-05-15
申请号：US19025624
申请日：2025-01-16
Inventor： Satoshi MATSUI , Tadamasa TOMA , Minami NAKA
Abstract: An image processing device acquires an image captured by a camera, recognizes a plurality of markers included in the image, specifies a capturable area surrounded by the plurality of recognized markers when the plurality of markers is recognized, and specifies, as the capturable area, an area in the image acquired this time, the area matching a capturable image in the capturable area previously specified when the plurality of markers is not recognized, creates a mask image that masks an area outside the capturable area in the image, and outputs the mask image.
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67.发明公开公开(公告)号：US20240348833A1
公开(公告)日：2024-10-17
申请号：US18748788
申请日：2024-06-20
Inventor： Virginie DRUGEON , Takahiro NISHI , Tadamasa TOMA
IPC: H04N19/70 , H02M1/00 , H02M1/084 , H02M1/14 , H04N7/01 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/434 , H04N21/4402 , H05B45/37 , H05B47/10 , H05B47/11 , H05B47/19
CPC classification number: H04N19/70 , H02M1/084 , H02M1/14 , H04N7/0117 , H04N19/85 , H04N19/98 , H04N21/2343 , H04N21/236 , H04N21/23614 , H04N21/4345 , H04N21/4402 , H05B45/37 , H05B47/10 , H05B47/11 , H05B47/19 , H02M1/0009
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.
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公开(公告)号：US20240119569A1
公开(公告)日：2024-04-11
申请号：US18542622
申请日：2023-12-16
Inventor： Yuzuru NAKAMURA , Tadamasa TOMA , Sotaro TSUKIZAWA
CPC classification number: G06T5/70 , G06T5/20 , G06T7/11 , G06V10/30 , G06V20/64 , G06T2207/10028 , G06T2207/20021 , G06T2207/20212
Abstract: An input interface acquires a first distance image including a plurality of pixels, each of the plurality of pixels indicating a distance value from an image capture device to each point of an object. An image divider divides the first distance image into a plurality of pixel groups based on the distance values of the pixels, such that each of the plurality of pixel groups includes pixels having distance values falling within one of a plurality of distance intervals different from each other. A noise filter individually processes the plurality of pixel groups using a plurality of filter parameters different for the plurality of pixel groups, to reduce noises in the plurality of pixel groups. An image combiner combines the plurality of pixel groups processed by the noise filter, with each other, to generate a second distance image.
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69.发明公开公开(公告)号：US20230353620A1
公开(公告)日：2023-11-02
申请号：US18221983
申请日：2023-07-14
Inventor： Noritaka IGUCHI , Tadamasa TOMA
IPC: H04N21/2381 , H04N21/854 , H04N21/643 , H04L65/75 , H04L65/70 , H04H60/07
CPC classification number: H04L65/70 , H04H60/07 , H04L65/75 , H04N21/2381 , H04N21/64322 , H04N21/85406 , H04L2101/668
Abstract: A transmission method includes: generating a stream including a plurality of Internet Protocol (IP) data flows corresponding one-to-one with a plurality of services in broadcast, the IP data flows storing the corresponding services of the plurality of services; and transmitting the generated stream in a predetermined channel.
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70.发明公开公开(公告)号：US20230222571A1
公开(公告)日：2023-07-13
申请号：US18051901
申请日：2022-11-02
Inventor： Hiroshi YAHATA , Takahiro NISHI , Tadamasa TOMA , Toshiyasu SUGIO
IPC: G06Q30/0601 , G01S1/04
CPC classification number: G06Q30/0641 , G01S1/0428 , G01S1/045
Abstract: A method includes: acquiring, from a store terminal via a network, limited product information indicating a limited product for which a time available for sale in one branch store corresponding to the store terminal is limited; acquiring, from a communication terminal of a user via the network, i) a request for a purchase menu of affiliated stores and ii) a branch store identifier (ID) specifying one branch store corresponding to a device ID specifying a beacon signal transmitter disposed in the one branch store; generating, based on the limited product information, the request for the purchase menu, and the branch store ID, privileged purchase menu information corresponding to the one branch store; and outputting the privileged purchase menu information to the communication terminal.
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