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    SUBSTREAM MULTIPLEXING FOR DISPLAY STREAM COMPRESSION
    1.
    发明申请
    SUBSTREAM MULTIPLEXING FOR DISPLAY STREAM COMPRESSION 审中-公开

    公开(公告)号：US20180343471A1

    公开(公告)日：2018-11-29

    申请号：US15985809

    申请日：2018-05-22

    Applicant: QUALCOMM Incorporated

    Inventor： Natan Haim Jacobson ,  Vijayaraghavan Thirumalai ,  Rajan Laxman Joshi

    IPC: H04N19/70 ,  H04N19/176 ,  H04N19/119 ,  H04N19/169

    Abstract: A method and system for encoding video data in a constant bit rate video encoder. A video encoder may determine a coding mode for encoding a block of video data from among one or more coding modes based on a minimum syntax element size and a maximum syntax element size, wherein the minimum syntax element size is greater than 1 bit, encode the block of video data in a plurality of substreams according to the determined coding mode to create a plurality of encoded substreams of video data, store the plurality of encoded substreams of video data in respective balance FIFO buffers, and multiplex the plurality of encoded substreams in a bitstream for transmitting to a decoder.

    MODIFICATION TO BLOCK SIZE FOR TRANSFORM MODE IN DISPLAY STREAM COMPRESSION
    3.
    发明申请
    MODIFICATION TO BLOCK SIZE FOR TRANSFORM MODE IN DISPLAY STREAM COMPRESSION 审中-公开
    在显示流程压缩中修改变形模式的块大小

    公开(公告)号：US20170026663A1

    公开(公告)日：2017-01-26

    申请号：US15213966

    申请日：2016-07-19

    Applicant: QUALCOMM Incorporated

    Inventor： Vijayaraghavan Thirumalai ,  Natan Haim Jacobson ,  Rajan Laxman Joshi

    IPC: H04N19/60 ,  H04N19/154 ,  H04N19/167 ,  H04N19/176

    CPC classification number: H04N19/60 ,  H04N19/122 ,  H04N19/14 ,  H04N19/147 ,  H04N19/154 ,  H04N19/167 ,  H04N19/176

    Abstract: Methods and apparatuses for modification to block size for transform mode in display stream compression are disclosed. In one aspect, the method involves selecting a current block and a next block of video data, calculating a first rate-distortion (RD) cost for coding the current and next blocks with a larger block size transform (LBT) mode, and calculating a second RD cost for coding each of the current and next blocks with another coding mode different from the LBT mode. The method may further involve determining whether the first RD cost is less than a sum of the second RD costs for the current and next blocks and coding the current and next blocks with the LBT mode in response to the first RD cost being less than the sum of the second RD costs for the current and next blocks.

    Abstract translation: 公开了用于在显示流压缩中对变形模式的块大小进行修改的方法和装置。 一方面，该方法涉及选择视频数据的当前块和下一块，计算用于以较大的块大小变换（LBT）模式对当前块和下一个块进行编码的第一速率失真（RD）成本，并计算 用于使用与LBT模式不同的另一编码模式对每个当前块和下一个块进行编码的第二RD成本。 该方法还可以包括确定第一RD成本是否小于当前块和下一个块的第二RD成本之和，并且响应于第一RD成本小于总和，对具有LBT模式的当前块和下一个块进行编码 的当前和下一个块的第二个RD成本。

    RATE-CONSTRAINED FALLBACK MODE FOR DISPLAY STREAM COMPRESSION
    4.
    发明申请
    RATE-CONSTRAINED FALLBACK MODE FOR DISPLAY STREAM COMPRESSION 审中-公开
    用于显示流压缩的速率约束倒带模式

    公开(公告)号：US20160301950A1

    公开(公告)日：2016-10-13

    申请号：US15078792

    申请日：2016-03-23

    Applicant: QUALCOMM Incorporated

    Inventor： Natan Haim Jacobson ,  Vijayaraghavan Thirumalai ,  Rajan Laxman Joshi

    IPC: H04N19/593 ,  H04N19/174 ,  H04N19/11 ,  H04N19/186 ,  H04N19/159 ,  H04N19/625 ,  H04N19/61 ,  H04N19/423 ,  H04N19/112 ,  H04N19/147 ,  H04N19/124

    CPC classification number: H04N19/593 ,  G09G5/006 ,  G09G5/026 ,  G09G2340/02 ,  G09G2340/06 ,  G09G2360/127 ,  H04N19/11 ,  H04N19/112 ,  H04N19/124 ,  H04N19/147 ,  H04N19/15 ,  H04N19/159 ,  H04N19/174 ,  H04N19/186 ,  H04N19/423 ,  H04N19/61 ,  H04N19/625

    Abstract: A method and apparatus for coding video information are disclosed. In one example, the method may involve: identifying one or more prediction modes for a fixed-rate codec, each prediction mode having a rate-distortion cost; and selecting, for a current block, a prediction mode that has the lowest rate-distortion cost from among the one more prediction modes not previously selected. The method may involve: (i) determining whether the selected prediction mode would result in overflow or underflow of a buffer of the fixed-rate codec; and (ii) determining whether the selected prediction mode would result in remaining bits in the slice being insufficient to code remaining blocks of the slice. The method may involve utilizing a fallback mode to code the current block in response to each of the selected one or more prediction modes resulting in at least one of conditions (i) and (ii) being true.

    Abstract translation: 公开了一种用于编码视频信息的方法和装置。 在一个示例中，该方法可以包括：识别固定速率编解码器的一个或多个预测模式，每个预测模式具有速率失真成本; 并且对于当前块，从未预先选择的多个预测模式中选择具有最低速率失真成本的预测模式。 该方法可以包括：（i）确定所选择的预测模式是否将导致固定速率编解码器的缓冲器的溢出或下溢; 和（ii）确定所选择的预测模式是否会导致切片中的剩余比特不足以对切片的剩余块进行编码。 该方法可以包括利用回退模式来响应于所选择的一个或多个预测模式中的每一个来对当前块进行编码，导致条件（i）和（ii）中的至少一个为真。

    COMPLEX REGION DETECTION FOR DISPLAY STREAM COMPRESSION
    5.
    发明申请
    COMPLEX REGION DETECTION FOR DISPLAY STREAM COMPRESSION 有权
    显示流程压缩的复杂区域检测

    公开(公告)号：US20160301933A1

    公开(公告)日：2016-10-13

    申请号：US15078797

    申请日：2016-03-23

    Applicant: QUALCOMM Incorporated

    Inventor： Natan Haim Jacobson ,  Vijayaraghavan Thirumalai ,  Rajan Laxman Joshi

    IPC: H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/174

    CPC classification number: H04N19/14 ,  H04N19/124 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/61

    Abstract: A method and apparatus for detecting a complex region of an image are disclosed. In one example, the method may involve calculating complexity values for a current block, a next block, and a previous block. The method may involve: (i) detecting that the previous complexity value is less than a first threshold value, and that the next complexity value is greater than a second threshold value; and (ii) determining that neither a transition to the current block nor a transition to the previous block is a flat-to-complex region transition. The method may involve detecting a flat-to-complex region transition when transitioning to the next block in response to (i) and (ii).

    Abstract translation: 公开了一种用于检测图像的复杂区域的方法和装置。 在一个示例中，该方法可以包括计算当前块，下一个块和先前块的复杂度值。 该方法可以包括：（i）检测先前复杂度值小于第一阈值，并且下一个复杂度值大于第二阈值; 和（ii）确定既不转移到当前块也不转移到先前块是既不是一个平面到复杂的区域转换。 该方法可以涉及当响应于（i）和（ii）转移到下一个块时检测平坦到复杂区域转变。

    Pattern mode for frame buffer compression
    6.
    发明授权
    Pattern mode for frame buffer compression 有权
    帧缓冲区压缩的模式模式

    公开(公告)号：US09460527B2

    公开(公告)日：2016-10-04

    申请号：US14170463

    申请日：2014-01-31

    Applicant: QUALCOMM Incorporated

    Inventor： Chia-Yuan Teng ,  Natan Haim Jacobson

    IPC: G06T9/00 ,  H04N19/94

    CPC classification number: G06T9/00 ,  H04N19/94

    Abstract: Certain aspects relate to systems and techniques for compressing image data using pattern mode compression schemes. A pattern mode compression scheme can reduce the amount of data stored in a frame buffer to reduce power costs of an image display system. In some implementations, pattern mode compression can be suitable for compression of pixel blocks having a limited color palette with one or more pixels of a different foreground color, and a slope-enabled pattern compression can be suitable for compression of pixel blocks having a gradient. Input pixel values can be compared against a dynamically-populated, fixed size pattern entry database to determine whether pattern mode compression or slope-enabled pattern mode compression should be used to compress the image block.

    Abstract translation: 某些方面涉及使用模式模式压缩方案来压缩图像数据的系统和技术。 模式模式压缩方案可以减少存储在帧缓冲器中的数据量，以降低图像显示系统的功率成本。 在一些实现中，图案模式压缩可适用于具有具有不同前景颜色的一个或多个像素的有限调色板的像素块的压缩，并且斜率启用图案压缩可适用于具有梯度的像素块的压缩。 可以将输入像素值与动态填充的固定大小的模式条目数据库进行比较，以确定是否应使用模式模式压缩或斜率启用模式压缩来压缩图像块。

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