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    Rate and quality controller for H.264/AVC video coder and scene analyzer therefor
    21.
    发明授权
    Rate and quality controller for H.264/AVC video coder and scene analyzer therefor 有权
    H.264 / AVC视频编码器和场景分析仪的速率和质量控制器

    公开(公告)号：US07869503B2

    公开(公告)日：2011-01-11

    申请号：US10811982

    申请日：2004-03-30

    Applicant: Barin Haskell ,  Adriana Dumitras ,  James Normile ,  Hsi-Jung Wu ,  Xiaochun Nie ,  Atul Puri

    Inventor： Barin Haskell ,  Adriana Dumitras ,  James Normile ,  Hsi-Jung Wu ,  Xiaochun Nie ,  Atul Puri

    IPC: H04N7/12

    CPC classification number: H04N19/198 ,  H04N19/115 ,  H04N19/124 ,  H04N19/132 ,  H04N19/137 ,  H04N19/14 ,  H04N19/149 ,  H04N19/159 ,  H04N19/169 ,  H04N19/172 ,  H04N19/18 ,  H04N19/194 ,  H04N19/196 ,  H04N19/51 ,  H04N19/59 ,  H04N19/61

    Abstract: A rate control system is disclosed for video coding applications. The rate controller assigns a quantization parameter for video data in a picture in response to complexity indicators indicative of spatial complexity, motion complexity and/or bits per pel of the picture. A virtual buffer based quantizer parameter is proposed based on a virtual buffer fullness analysis and a target rate estimate, which is derived from the complexity indicators. A second quantizer parameter is proposed from a linear regression analysis of quantizer parameters used to code previously coded pictures of similar type (e.g., I pictures, P pictures or B pictures). A coding policy decision unit defines a final quantizer parameter from a comparison of the two proposed quantizer parameters.

    Abstract translation: 公开了一种用于视频编码应用的速率控制系统。 速率控制器响应于表示图像的空间复杂度，运动复杂度和/或每像素的复杂度指示符，为图像中的视频数据分配量化参数。 基于虚拟缓冲区丰满度分析和目标速率估计提出了一种基于虚拟缓冲器的量化器参数，该参数是从复杂性指标中得出的。 从用于对先前编码的类似类型的图像（例如，I图像，P图像或B图像）进行编码的量化器参数的线性回归分析提出了第二量化参数。 编码策略决定单元根据两个提出的量化器参数的比较来定义最终的量化器参数。

    Texture replacement in video sequences and images
    25.
    发明申请
    Texture replacement in video sequences and images 有权
    视频序列和图像中的纹理替换

    公开(公告)号：US20050243099A1

    公开(公告)日：2005-11-03

    申请号：US11179701

    申请日：2005-07-12

    Applicant: Adriana Dumitras ,  Barin Haskell

    Inventor： Adriana Dumitras ,  Barin Haskell

    IPC: G06T5/00 ,  G06T7/40 ,  G06T11/00 ,  H04N5/262 ,  H04N7/26 ,  G09G5/00

    CPC classification number: G06T11/001 ,  G06T7/40 ,  G06T7/41 ,  G06T9/00 ,  G06T9/001 ,  H04N19/14 ,  H04N19/167 ,  H04N19/17 ,  H04N19/186 ,  H04N19/23 ,  H04N19/27

    Abstract: Systems and methods for reducing bit rates by replacing original texture in a video sequence with synthesized texture. Reducing the bit rate of the video sequence begins by identifying and removing selected texture from frames in a video sequence. The removed texture is analyzed to generate texture parameters. New texture is synthesized using the texture parameters in combination with a set of constraints. Then, the newly synthesized texture is mapped back into the frames of the video sequence from which the original texture was removed. The resulting frames are then encoded. The bit rate of the video sequence with the synthesized texture is less than the bit rate of the video sequence with the original texture. Also, the ability of a decoder to decode the new video sequence is not compromised because no assumptions are made about the texture synthesis capabilities of the decoder.

    Abstract translation: 通过用合成纹理替换视频序列中的原始纹理来降低比特率的系统和方法。 通过从视频序列中的帧识别和去除所选纹理，降低视频序列的比特率。 分析去除的纹理以生成纹理参数。 使用纹理参数和一组约束组合新的纹理。 然后，将新合成的纹理映射回去除原始纹理的视频序列的帧。 然后对所得到的帧进行编码。 具有合成纹理的视频序列的比特率小于具有原始纹理的视频序列的比特率。 此外，解码器解码新视频序列的能力不会受到损害，因为没有对解码器的纹理合成能力做出假设。

    METHOD OF TRANSMITTING LAYERED VIDEO-CODED INFORMATION
    27.
    发明申请
    METHOD OF TRANSMITTING LAYERED VIDEO-CODED INFORMATION 有权
    传输分层视频编码信息的方法

    公开(公告)号：US20060200848A1

    公开(公告)日：2006-09-07

    申请号：US11419844

    申请日：2006-05-23

    Applicant: Paul Baldine-Brunel ,  Glenn Cash ,  M. Civanlar ,  Barin Haskell ,  Paul Howard ,  Atul Puri ,  Robert Schmidt

    Inventor： Paul Baldine-Brunel ,  Glenn Cash ,  M. Civanlar ,  Barin Haskell ,  Paul Howard ,  Atul Puri ,  Robert Schmidt

    IPC: H04N7/173 ,  H04N7/12 ,  H04N11/04 ,  H04N11/02

    CPC classification number: H04N21/631 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/6437 ,  H04N21/64738

    Abstract: Video-coded information is transmitted over a network at a priority level that is determined based on feedback from the network. In an embodiment, the feedback comprises a response to a request for information on whether the network currently has the available capacity to transmit additional high priority traffic. In an embodiment, a candidate base layer frame is transmitted over a network as a base layer frame if permission to send high priority data was granted and is transmitted over the network as an enhancement layer frame if permission to send high priority data was denied. In a further embodiment, the candidate base layer frame is deleted if permission to send high priority data was denied.

    Abstract translation: 视频编码信息通过网络以优先级进行发送，该优先级基于来自网络的反馈确定。 在一个实施例中，反馈包括对关于网络当前是否具有发送附加高优先级业务的可用容量的信息的请求的响应。 在一个实施例中，如果许可发送高优先级数据被许可，则通过网络作为基本层帧来发送候选基本层帧，并且如果许可发送高优先级数据被拒绝，则通过网络作为增强层帧发送。 在另一实施例中，如果发送高优先级数据的许可被拒绝，则候选基本层帧被删除。

    SYSTEM AND METHOD FOR GENERATING VIDEO DATA FOR IMPLICIT COEFFICIENT PREDICTION DECODING
    28.
    发明申请
    SYSTEM AND METHOD FOR GENERATING VIDEO DATA FOR IMPLICIT COEFFICIENT PREDICTION DECODING 有权
    用于产生视频数据的系统和方法用于隐含系数预测解码

    公开(公告)号：US20070248161A1

    公开(公告)日：2007-10-25

    申请号：US11169539

    申请日：2005-06-29

    Applicant: Barin Haskell ,  Atul Puri ,  Robert Schmidt

    Inventor： Barin Haskell ,  Atul Puri ,  Robert Schmidt

    IPC: H04N7/12

    CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/11 ,  H04N19/122 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/14 ,  H04N19/146 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/50 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61 ,  H04N19/63 ,  H04N19/91

    Abstract: A predictive video coder performs gradient prediction based on previous blocks of image data. For a new block of image data, the prediction determines a horizontal gradient and a vertical gradient from a block diagonally above the new block (vertically above a previous horizontally adjacent block). Based on these gradients, the encoder predicts image information based on image information of either the horizontally adjacent block or a block vertically adjacent to the new block. The encoder determines a residual that is transmitted in an output bitstream. The decoder performs the identical gradient prediction and predicts image information without need for overhead information. The decoder computes the actual information based on the predicted information and the residual from the bitstream.

    Abstract translation: 预测视频编码器基于先前的图像数据块执行梯度预测。 对于新的图像数据块，预测确定来自新块上方的块（垂直于先前水平相邻块的上方）的水平梯度和垂直梯度。 基于这些梯度，编码器基于水平相邻块或与新块垂直相邻的块的图像信息来预测图像信息。 编码器确定在输出比特流中发送的残差。 解码器执行相同的梯度预测并且不需要开销信息来预测图像信息。 解码器基于来自比特流的预测信息和残差来计算实际信息。

    Video bit rate control method
    29.
    发明申请
    Video bit rate control method 有权
    视频比特率控制方法

    公开(公告)号：US20070116115A1

    公开(公告)日：2007-05-24

    申请号：US11473248

    申请日：2006-06-23

    Applicant: Xin Tong ,  Barin Haskell ,  Hsi-Jung Wu

    Inventor： Xin Tong ,  Barin Haskell ,  Hsi-Jung Wu

    IPC: H04N11/04 ,  H04N7/12

    CPC classification number: H04N19/198 ,  H04N19/124 ,  H04N19/146 ,  H04N19/152 ,  H04N19/172 ,  H04N19/177 ,  H04N19/192 ,  H04N19/196 ,  H04N19/61

    Abstract: This invention is directed to a video bit rate control method for encoding a video sequence based on a decoder buffer condition and a group of picture (GOP) size limitation of the encoded video sequence. The method includes iteratively adjusting a quantization parameter and/or a masking strength parameter and encoding the video sequence at the adjusted parameters until the buffer condition and GOP size limitation are satisfied. The method makes the above adjustments to avoid buffer underflow and GOP oversizing.

    Abstract translation: 本发明涉及一种视频比特率控制方法，用于根据解码器缓冲器条件和编码视频序列的一组图像（GOP）尺寸限制对视频序列进行编码。 该方法包括迭代地调整量化参数和/或掩蔽强度参数，并且以调整的参数对视频序列进行编码，直到满足缓冲条件和GOP大小限制。 该方法进行上述调整，以避免缓冲区下溢和GOP超大。

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