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    Systems, methods, and devices for video data scaling in multi-window displays
    51.
    发明授权
    Systems, methods, and devices for video data scaling in multi-window displays 有权

    公开(公告)号：US12033300B2

    公开(公告)日：2024-07-09

    申请号：US17068568

    申请日：2020-10-12

    申请人： RGB SPECTRUM

    发明人： Clive Walker ,  Lynton Auld ,  Scott Norder

    IPC分类号： G06T3/40 ,  H04N9/31 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N21/2662

    CPC分类号： G06T3/40 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N9/3188 ,  H04N21/2662

    摘要： System, methods, and devices provide scaling for multi-window displays. Systems include decoders configured to decode a plurality of media streams, wherein each of the plurality of media streams includes a plurality of frames each comprising video data. Systems further include memory devices configured to store a plurality of unscaled frames included in the plurality of frames and received from the decoder, and processing devices configured to generate a plurality of display parameters based, at least in part, on the plurality of media streams. Systems also include a plurality of scalers configured to identify frames to be scaled based on the plurality of display parameters, further configured to scale the identified plurality of frames based on a plurality of scaling parameters. Systems further include encoders configured to encode at least some of the plurality of scaled frames into one or more media steams.

    IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND PROGRAM
    56.
    发明公开
    IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND PROGRAM 审中-公开

    公开(公告)号：US20240205440A1

    公开(公告)日：2024-06-20

    申请号：US18588461

    申请日：2024-02-27

    申请人： KDDI CORPORATION

    发明人： Haruhisa KATO ,  Yoshitaka KIDANI

    IPC分类号： H04N19/44 ,  H04N19/132 ,  H04N19/18

    CPC分类号： H04N19/44 ,  H04N19/132 ,  H04N19/18

    摘要： In an image decoding device (200) according to the present invention, a circuit: decodes control information and a quantized value; obtains a decoded transform coefficient by performing inverse quantization on the decoded quantized value; obtains a decoded prediction residual by performing inverse transform on the decoded transform coefficient; generates a first predicted sample based on a decoded sample and the decoded control information; accumulates the decoded sample; generates a second predicted sample based on the accumulated decoded sample and the decoded control information; prepares a plurality of weighting coefficients by which a width of a division boundary is different for at least one of the first predicted sample or the second predicted sample, and generates a third predicted sample in which the width of the division boundary is controlled by weighted averaging; and obtains the decoded sample by adding the decoded prediction residual and the third predicted sample.

    INDEPENDENT SUBPICTURE FILM GRAIN
    57.
    发明公开
    INDEPENDENT SUBPICTURE FILM GRAIN 审中-公开

    公开(公告)号：US20240205439A1

    公开(公告)日：2024-06-20

    申请号：US18572272

    申请日：2022-06-10

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： Rickard SJÖBERG ,  Martin PETTERSSON ,  Mitra DAMGHANIAN

    IPC分类号： H04N19/44 ,  H04N19/17

    CPC分类号： H04N19/44 ,  H04N19/17

    摘要： According to one aspect, a method is provided for applying film grain to a picture decoded from a bitstream. The method includes decoding region information from syntax elements in the bitstream. The method includes deriving, based on the region information, a number of regions in the picture, wherein the number of regions is at least two. The method includes deriving, based on the region information, a region raster-scan order for a first region of the at least two regions. The method includes decoding the first region, wherein the decoding of the first region comprises applying film grain to the first region in accordance with the region raster-scan order.

    Method of layer blending and reconstruction based on the alpha channel
    58.
    发明授权
    Method of layer blending and reconstruction based on the alpha channel 有权

    公开(公告)号：US12015884B2

    公开(公告)日：2024-06-18

    申请号：US17179440

    申请日：2021-02-19

    申请人： NOVATEK MICROELECTRONICS CORP.

    发明人： Hung-Ming Wang ,  Yuan-Po Cheng

    IPC分类号： H04N9/76 ,  H04N9/64 ,  H04N19/44

    CPC分类号： H04N9/76 ,  H04N9/646 ,  H04N19/44

    摘要： A device and method for blending image data and the alpha channel and reconstructing to obtain the image again after transmission. An encoder blends the alpha channel and the red-green-blue (RGB) image data through a layer blending method that is supported by the general application processor (AP). Transporter image data, such as a checkerboard pattern, is blended with 1-alpha channel data to obtain a transporter. The blended image data (RGB+alpha) is mixed with the transporter to obtain mixed image data. The mixed image data is then transmitted through the existing transmission interface. After receiving the mixed image data, reconstruction processing is performed by a decoder to obtain the original RGB image data and the alpha channel again.