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18 条记录 (耗时 0.027 秒)

    Methods and systems for rate-adaptive transmission of video
    1.
    发明授权
    Methods and systems for rate-adaptive transmission of video 有权
    视频速率自适应传输的方法和系统

    公开(公告)号：US08243789B2

    公开(公告)日：2012-08-14

    申请号：US11627348

    申请日：2007-01-25

    申请人： Mehmet Umut Demircin ,  Petrus J. L. van Beek ,  Sachin G. Deshpande

    发明人： Mehmet Umut Demircin ,  Petrus J. L. van Beek ,  Sachin G. Deshpande

    IPC分类号： H04N7/12

    CPC分类号： H04N19/34 ,  H04N19/152 ,  H04N19/177

    摘要： Embodiments of the present invention comprise systems and methods for: authorizing the transmission of audiovisual data based on an iterative changing bit budget, where the bit budget may be based on a value of a total size of the set of Network Abstraction Layer units and a value of an initial size of the group of frames; and determining a bit budget remainder and an adjusted bit budget remainder.

    摘要翻译： 本发明的实施例包括用于：基于迭代改变比特预算来授权视听数据的传输的系统和方法，其中比特预算可以基于所述一组网络抽象层单元的总大小的值， 的一组帧的初始大小; 以及确定比特预算余数和调整的比特预算余数。

    Parallel CABAC Decoding Using Entropy Slices
    4.
    发明申请
    Parallel CABAC Decoding Using Entropy Slices 审中-公开
    使用熵切片并行CABAC解码

    公开(公告)号：US20100098155A1

    公开(公告)日：2010-04-22

    申请号：US12572854

    申请日：2009-10-02

    申请人： Mehmet Umut Demircin ,  Madhukar Budagavi

    发明人： Mehmet Umut Demircin ,  Madhukar Budagavi

    IPC分类号： H04N11/02

    CPC分类号： H03M7/48 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/61

    摘要： A method of video encoding is provided that includes performing context-adaptive binary arithmetic coding (CABAC) on a plurality of syntax element values in a slice to generate a plurality of entropy-encoded syntax element values, generating an entropy slice header to identify the plurality of entropy-encoded syntax element values as an entropy slice, wherein the entropy slice header comprises context model initialization information, and outputting the entropy slice header and the plurality of entropy encoded syntax element values.

    摘要翻译： 提供了一种视频编码方法，其包括对片中的多个语法元素值执行上下文自适应二进制算术编码（CABAC）以生成多个熵编码语法元素值，生成熵片标题以识别多个 熵编码的语法元素值作为熵片，其中所述熵片头包括上下文模型初始化信息，并输出所述熵片头和所述多个熵编码语法元素值。

    Parallel CABAC Decoding for Video Decompression
    5.
    发明申请
    Parallel CABAC Decoding for Video Decompression 有权
    用于视频解压缩的并行CABAC解码

    公开(公告)号：US20100097250A1

    公开(公告)日：2010-04-22

    申请号：US12572217

    申请日：2009-10-01

    申请人： Mehmet Umut Demircin ,  Vivienne Sze ,  Madhukar Budagavi

    发明人： Mehmet Umut Demircin ,  Vivienne Sze ,  Madhukar Budagavi

    IPC分类号： H03M7/00

    CPC分类号： H03M7/48 ,  H03M7/4006 ,  H04N19/13 ,  H04N19/61

    摘要： A method of video decoding is provided that includes receiving a data stream comprising a sequence of syntax elements that were compressed using context-adaptive binary arithmetic coding (CABAC), such that the encoding of each bin of a bin string representative of a syntax element was performed by arithmetic encoding. Two consecutive bins of a syntax element are decoded in parallel. Speculative computation and prefetching is used to reduce the critical path and thereby improve processing speed.

    摘要翻译： 提供了一种视频解码方法，包括接收包含使用上下文自适应二进制算术编码（CABAC）压缩的语法元素序列的数据流，使得表示语法元素的bin字符串的每个bin的编码为 通过算术编码进行。 并行解码两个连续的语法元素区块。 推算计算和预取用于减少关键路径，从而提高处理速度。

    REGION OF INTEREST (ROI) VIDEO ENCODING
    7.
    发明申请
    REGION OF INTEREST (ROI) VIDEO ENCODING 审中-公开
    利益区域（ROI）视频编码

    公开(公告)号：US20110235706A1

    公开(公告)日：2011-09-29

    申请号：US13053419

    申请日：2011-03-22

    申请人： Mehmet Umut Demircin ,  Do-Kyoung Kwon ,  Naveen Srinivasamurthy ,  Manoj Koul ,  Soyeb Nagori

    发明人： Mehmet Umut Demircin ,  Do-Kyoung Kwon ,  Naveen Srinivasamurthy ,  Manoj Koul ,  Soyeb Nagori

    IPC分类号： H04N7/26

    CPC分类号： H04N19/126 ,  H04N19/14 ,  H04N19/17

    摘要： A method of encoding an image frame in a video encoding system. The image frame has a region of interest (ROI) and a non region of interest (non-ROI). In the method, quantization scale for the image frame based on rate control information is determined. ROI statistics based on residual energy of the ROI and non-ROI is then calculated. Quantization scale for the image frame based on ROI priorities and ROI statistics is calculated. Further, quantization scales for ROI and non-ROI based on ROI priorities are determined.

    摘要翻译： 一种对视频编码系统中的图像帧进行编码的方法。 图像帧具有感兴趣区域（ROI）和非感兴趣区域（非ROI）。 在该方法中，确定基于速率控制信息的图像帧的量化尺度。 然后计算基于ROI和非ROI的剩余能量的ROI统计。 计算基于ROI优先级和ROI统计量的图像帧的量化标度。 此外，确定基于ROI优先级的用于ROI和非ROI的量化尺度。

    Guaranteed-Rate Tiled Image Data Compression
    10.
    发明申请
    Guaranteed-Rate Tiled Image Data Compression 有权
    保证速率的平铺图像数据压缩

    公开(公告)号：US20110206289A1

    公开(公告)日：2011-08-25

    申请号：US13024989

    申请日：2011-02-10

    申请人： Salih Dikbas ,  Mehmet Umut Demircin ,  Minhua Zhou

    发明人： Salih Dikbas ,  Mehmet Umut Demircin ,  Minhua Zhou

    IPC分类号： G06K9/36

    CPC分类号： H04N19/00484 ,  H04N19/11 ,  H04N19/126 ,  H04N19/13 ,  H04N19/147 ,  H04N19/167 ,  H04N19/18 ,  H04N19/423 ,  H04N19/463 ,  H04N19/63 ,  H04N19/645 ,  H04N19/91

    摘要： A method of compressing digital image data is provided that includes, for each image data block in a plurality of image data blocks in the digital image data, transforming image data in the image data block to convert the image data to a low-frequency coefficient and a plurality of high-frequency coefficients, computing a predicted low-frequency coefficient for the image data block based on at least one neighboring image data block in the plurality of image data blocks, computing a residual low-frequency coefficient based on the predicted low-frequency coefficient and the low-frequency coefficient, quantizing the plurality of high-frequency coefficients, and entropy coding the residual low-frequency coefficient and the quantized high-frequency coefficients.

    摘要翻译： 提供一种压缩数字图像数据的方法，包括对于数字图像数据中的多个图像数据块中的每个图像数据块，对图像数据块中的图像数据进行变换以将图像数据转换为低频系数， 多个高频系数，基于所述多个图像数据块中的至少一个相邻图像数据块计算所述图像数据块的预测低频系数，基于所述预测低频系数计算残留低频系数， 频率系数和低频系数，对多个高频系数进行量化，对剩余低频系数和量化高频系数进行熵编码。