公开(公告)号：US11102483B2

公开(公告)日：2021-08-24

申请号：US16875542

申请日：2020-05-15

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Chong Soon Lim ,  Hai Wei Sun ,  Han Boon Teo ,  Jing Ya Li ,  Che-Wei Kuo ,  Tadamasa Toma ,  Takahiro Nishi ,  Kiyofumi Abe ,  Yusuke Kato

IPC: H04N19/119 ,  H04N19/503 ,  H04N19/186 ,  H04N19/593 ,  H04N19/117 ,  H04N19/91 ,  H04N19/124 ,  H04N19/176

Abstract: An encoder includes circuitry and memory coupled to the circuitry. The circuitry determines whether to split a current luma virtual pipeline decoding unit (VPDU) into smaller blocks. When it is determined not to split the current luma VPDU into smaller blocks, scaling prediction residuals of chroma samples based on prediction residuals of luma samples is not performed. When it is determined to split the luma VPDU into smaller blocks, scaling the prediction residuals of chroma samples based on prediction residuals of luma samples is performed. The block is encoded based on the prediction residuals of chroma samples.

公开(公告)号：US11087499B2

公开(公告)日：2021-08-10

申请号：US16211910

申请日：2018-12-06

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu Sugio ,  Takahiro Nishi ,  Tadamasa Toma ,  Toru Matsunobu ,  Satoshi Yoshikawa ,  Tatsuya Koyama

IPC: G06T9/40 ,  G06T17/00 ,  G06T9/00 ,  G06T15/08

Abstract: A three-dimensional data encoding method includes: extracting, from first three-dimensional data, second three-dimensional data having an amount of a feature greater than or equal to a threshold; and encoding the second three-dimensional data to generate first encoded three-dimensional data. For example, the three-dimensional data encoding method may further include encoding the first three-dimensional data to generate the second encoded three-dimensional data.

公开(公告)号：US11057646B2

公开(公告)日：2021-07-06

申请号：US16866954

申请日：2020-05-05

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Alec Hodgkinson ,  Luca Rigazio ,  Tadamasa Toma ,  Takahiro Nishi ,  Kiyofumi Abe ,  Ryuichi Kanoh

IPC: H04N19/86 ,  G06T9/00

Abstract: An image processor includes memory and circuitry. The circuitry performs processing of approximating a decompressed image to an original image by using a neural network model trained to approximate the decompressed image to the original image. The decompressed image is obtained as a result of compression of the original image and decompression of the compressed image. The neural network model includes one or more convolutional blocks, and includes one or more residual blocks. Each of the one or more convolutional blocks is a processing block including a convolutional layer. Each of the one or more residual blocks includes a convolutional group including at least one of the one or more convolutional blocks, inputs data which is input to the residual block to the convolutional group included in the residual block, and adds the data input to the residual block to data to be output from the convolutional group.

公开(公告)号：US10986354B2

公开(公告)日：2021-04-20

申请号：US16385728

申请日：2019-04-16

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Kiyofumi Abe ,  Takahiro Nishi ,  Tadamasa Toma ,  Ryuichi Kanoh

IPC: H04N19/13 ,  H04N19/14 ,  H04N19/105 ,  H04N19/174 ,  H04N19/196

Abstract: An encoder includes circuitry and memory. The circuitry, using the memory: stores, in a storage region, a probability parameter for entropy encoding of a first current slice included in a first picture, the probability parameter becoming available when encoding of a final coding unit (CU) of the first current slice is completed; and initializes, with reference to the probability parameter stored in the storage region, a probability parameter for entropy encoding of a second current slice included in a second picture when encoding of a leading CU of the second current slice starts. The first picture is a reference picture referred to when the second current slice is encoded, and the first current slice includes a CU located at the same position as a position of the leading CU of the second current slice.

公开(公告)号：US10951944B2

公开(公告)日：2021-03-16

申请号：US16073553

申请日：2017-01-30

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Peter Klenner ,  Frank Herrmann ,  Tadamasa Toma

IPC: H04N7/173 ,  H04N21/438 ,  H04N21/238

Abstract: A client receives streaming data according to Moving Picture Experts Group-Dynamic Adaptive Streaming over HTTP (MPEG-DASH) standard. The client includes a transmitter which transmits a Media Presentation Description (MPD) request or a segment request to a server, and a receiver which receives an MPD specified in the MPD request and a segment specified in the segment request. The MPD request contains information requesting transmission of an initialization segment by a push. The receiver receives the initialization segment transmitted by the push.

公开(公告)号：US10911805B2

公开(公告)日：2021-02-02

申请号：US16299440

申请日：2019-03-12

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Tadamasa Toma ,  Takahiro Nishi ,  Hisaya Katou

IPC: H04N21/242 ,  H04N21/44 ,  H04H60/13 ,  H04N21/43 ,  H04N21/462 ,  H04N21/61 ,  H04N21/8547 ,  H04H20/18

Abstract: According to one aspect of the present disclosure, a reception method in broadcast and broadband cooperation service, the reception method includes: receiving broadcast content transmitted through broadcast; receiving acquisition information through the broadcast, the acquisition information being information used to play back broadband content transmitted through broadband while the broadband content is synchronized with the received broadcast content, the acquisition information being information relating to acquisition of the broadband content; and acquiring the broadband content based on the received acquisition information. Therefore, the broadband content can properly be acquired in response to the reception of the broadcast content.

公开(公告)号：US10904576B2

公开(公告)日：2021-01-26

申请号：US16395317

申请日：2019-04-26

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Kiyofumi Abe ,  Takahiro Nishi ,  Tadamasa Toma ,  Ryuichi Kanoh

IPC: H04N19/80 ,  H04N19/563

Abstract: An encoder is an encoder which encodes a video, and includes: circuitry; and memory. The circuitry, using the memory, derives a motion vector of a current block included in a current picture, by referring to a reference picture different from the current picture; when a reference region indicated by the motion vector includes a region outside a boundary of the reference picture, performs padding for generating a plurality of pixels outside the boundary in the reference region, using one of a plurality of pixels inside the boundary of the reference picture, to generate the plurality of pixels outside the boundary; performs smoothing on the plurality of pixels outside the boundary; and generates a prediction image, using the plurality of pixels outside the boundary on which the smoothing has been performed.

公开(公告)号：US10891722B2

公开(公告)日：2021-01-12

申请号：US16512846

申请日：2019-07-16

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Masayuki Kozuka ,  Takashi Higashida ,  Yoshihiro Mori ,  Haruyasu Hirakawa ,  Tadamasa Toma ,  Hirokazu Nakanishi

IPC: G06T5/00 ,  G09G5/00 ,  G09G5/10 ,  H04N9/69 ,  H04N21/431 ,  H04N21/435 ,  G06T5/50

Abstract: 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 indicating a correlation of HDR luminance and code values. The method includes: acquiring the video data; performing, regarding each of multiple pixels making up the video in the acquired video data, first determining of determining whether luminance of that pixel exceeds a first predetermined luminance; performing, regarding each of the multiple pixels, dual tone mapping where luminance of that pixel is reduced by a different format in a case of the luminance of the pixel being found to exceed the first predetermined luminance from the first determining, and a case of the luminance of the pixel being found to be equal to or lower than the first predetermined luminance; and displaying the video on the display device using the results of the dual tone mapping.

公开(公告)号：US10832737B2

公开(公告)日：2020-11-10

申请号：US16251688

申请日：2019-01-18

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Hiroshi Yahata ,  Tadamasa Toma ,  Tomoki Ogawa

IPC: H04N19/70 ,  H04N19/44 ,  H04N19/46 ,  G11B27/28 ,  G11B20/10 ,  H04N5/84 ,  H04N9/804 ,  H04N9/82 ,  G11B27/10 ,  G11B27/32 ,  H04N5/85 ,  H04N7/015 ,  H04N9/87

Abstract: A non-transitory recording medium is provided that is reproduced by a playback device having an attribute reader, a decoder, and an outputter. The recording medium has recorded therein a video stream that is encoded video information, and a management information file correlated with the video stream. The management information file includes first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range that is wider than the first dynamic range. In a case where the first attribute information indicates the second dynamic range, the first attribute information also indicates a type of the second dynamic range.

公开(公告)号：US10687038B2

公开(公告)日：2020-06-16

申请号：US16539484

申请日：2019-08-13

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Hiroshi Yahata ,  Tadamasa Toma

IPC: H04N9/87 ,  H04N9/82 ,  H04N21/426 ,  H04N21/432 ,  H04N21/488 ,  G11B27/28 ,  G11B27/30 ,  G11B27/32 ,  G11B20/12 ,  G11B27/34 ,  H04N5/85 ,  H04N9/804 ,  G11B20/10 ,  H04N21/44

Abstract: A play back device includes a readout unit and a playback unit. The readout unit reads out an encoded main video stream and an encoded sub-video stream that are recorded in a recording medium. The sub-video stream is a sub-video that is to be superimposed on the main video and displayed. The playback unit plays the main video stream and the sub-video stream that have been read out. The sub-video stream includes multiple sets, each set including a first sub-video stream for a first luminance dynamic range and a second sub-video stream for a second luminance dynamic range, which is wider than the first luminance dynamic range. In the same set in the multiple sets, a registration order of the first sub-video stream in the first database and a registration order of the second sub-video stream in the second database are the same.