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公开(公告)号：US20220182573A1
公开(公告)日：2022-06-09
申请号：US17682180
申请日：2022-02-28
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20210235087A1
公开(公告)日：2021-07-29
申请号：US17231167
申请日：2021-04-15
Inventor： Satoshi YOSHIKAWA , Takahiro NISHI , Kengo TERADA
IPC: H04N19/124 , H04N19/176 , H04N19/126 , H04N19/154 , H04N19/159 , H04N19/46 , H04N19/136
Abstract: An encoding method which allows reduction in the amount of codes is provided. The encoding method includes: setting step S11 for setting a quantization matrix set; quantization step S12 for performing quantization on a target block using the selected quantization matrix; and encoding step S13 for encoding, in a mutually associated manner, the target block which has been subjected to the quantization and identification information for identifying the quantization matrix set which has been set. In setting step S11, a quantization matrix set selected from a plurality of quantization matrix sets is set as the quantization matrix set to be used to perform the quantization on the target block, the plurality of quantization matrix sets including a custom quantization matrix set which is arbitrarily specified and a plurality of defined quantization matrix sets which have been respectively defined in advance.
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公开(公告)号：US20210075998A1
公开(公告)日：2021-03-11
申请号：US17099050
申请日：2020-11-16
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20210075996A1
公开(公告)日：2021-03-11
申请号：US16951212
申请日：2020-11-18
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20210075994A1
公开(公告)日：2021-03-11
申请号：US16950250
申请日：2020-11-17
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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Patent Agency Ranking
公开(公告)号：US20210067728A1
公开(公告)日：2021-03-04
申请号：US17098712
申请日：2020-11-16
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20190313051A1
公开(公告)日：2019-10-10
申请号：US16448480
申请日：2019-06-21
Inventor： Tadamasa TOMA , Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI
IPC: H04N7/01 , G09G5/02 , H04N11/20 , H04N9/64 , G06T5/00 , G06F3/14 , H04N21/462 , H04N7/015 , H04N5/20 , G09G5/10 , H04N5/243 , H04N5/235
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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8.发明申请公开(公告)号：US20180192046A1
公开(公告)日：2018-07-05
申请号：US15739927
申请日：2016-03-18
Inventor： Han Boon TEO , Chong Soon LIM , Takahiro NISHI , Kengo TERADA , Tadamasa TOMA
IPC: H04N19/103 , H04N19/136 , H04N19/176 , G06N99/00
CPC classification number: H04N19/103 , G06N20/00 , H04N19/11 , H04N19/117 , H04N19/136 , H04N19/14 , H04N19/176 , H04N19/46 , H04N19/82
Abstract: To provide an encoding method for reducing deterioration in encoding efficiency when encoding a video/an image by selecting one operation mode out of a number of operation modes. The encoding method includes: extracting one or more features from one or more reconstructed pixel groups; categorizing the one or more reconstructed pixel groups using the extracted one or more features and a first machine learning model; and performing an encoding process on a current block of image samples included in a current picture using a parameter set corresponding to a result of the categorizing, the parameter set being one of a plurality of predefined parameter sets.
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9.发明申请公开(公告)号：US20180007378A1
公开(公告)日：2018-01-04
申请号：US15684212
申请日：2017-08-23
Inventor： Kengo TERADA , Hisao SASAI , Satoshi YOSHIKAWA
IPC: H04N19/50 , H04N19/573 , H04N19/58 , H04N5/232
CPC classification number: H04N19/50 , H04N5/23229 , H04N19/573 , H04N19/58
Abstract: An image coding apparatus, including an encoder and a memory, and an image coding method are provided. In the image coding apparatus, the encoder executes operations, including obtaining a reference-specific image from storage accessible by the encoder, the reference-specific image being referenced from one or more other images to be displayed, and storing the reference-specific image in the memory. The operations further include encoding one or more to-be-displayed images by referring to the reference-specific image, wherein the obtained reference-specific image is formed by integrating a plurality of images. An image decoding apparatus and an image decoding method are also provided.
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公开(公告)号：US20170251245A1
公开(公告)日：2017-08-31
申请号：US15596055
申请日：2017-05-16
Inventor： Masayuki KOZUKA , Tadamasa TOMA , Kengo TERADA , Takahiro NISHI
IPC: H04N21/4363 , H04N21/835 , H04N21/432 , H04N5/92 , H04N21/4408 , H04N21/4402
CPC classification number: H04N21/43635 , H04N5/92 , H04N7/015 , H04N7/167 , H04N21/4325 , H04N21/4402 , H04N21/440263 , H04N21/4408 , H04N21/835
Abstract: A playback method according to one aspect of the present disclosure is performed by a playback device connected to a display device. The playback method includes obtaining a type of the display device; selecting each of a version of High-Definition Multimedia Interface (HDMI) and a version of High-bandwidth Digital Content Protection (HDCP), according to the obtained type of the display device; obtaining a video signal of content recorded on a recording medium; decoding the obtained video signal; encrypting the decoded video signal using the selected version of HDCP; and outputting the encrypted video signal to the display device using the selected version of HDMI.
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