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1. 发明申请

WO2010144488A2 DUAL-MODE COMPRESSION OF IMAGES AND VIDEOS FOR RELIABLE REAL-TIME TRANSMISSION 审中-公开
标题翻译：图像的双模式压缩和可靠的实时传输视频
公开(公告)号：WO2010144488A2
公开(公告)日：2010-12-16
申请号：PCT/US2010/037824
申请日：2010-06-08
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad , TABATABAI, Ali , YAGASAKI, Yoichi
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad , TABATABAI, Ali , YAGASAKI, Yoichi
IPC分类号： H04N7/24
CPC分类号： F01L1/185 , F01L1/267 , H04N19/00
摘要： Dual-mode compression of images/videos for reliable real-time transmission includes a scalable block-based video compression. The method provides graceful quality degradations in case of channel bandwidth changes. Prediction for encoding is avoided, and the process is less complex with less memory requirements. The method involves processing each block independently with the advantage that errors are not able to propagate beyond current block boundaries. Two different encoding modes are used, natural image coding for acquired images and graphics coding for computer generated images. The proper encoding mode is chosen by comparing performance of the two modes for a particular block to be encoded. An embedded bitstream is generated by the encoder in accordance to the available channel bandwidth.
摘要翻译：用于可靠实时传输的图像/视频的双模式压缩包括可扩展的基于块的视频压缩。该方法在频道带宽变化的情况下提供优雅的质量下降。避免编码的预测，并且该过程不太复杂，存储器要求较少。该方法包括独立地处理每个块，其优点是错误不能传播超出当前块边界。使用两种不同的编码模式，采集图像的自然图像编码和计算机生成的图像的图形编码。通过比较要编码的特定块的两种模式的性能来选择适当的编码模式。嵌入式比特流由编码器根据可用信道带宽生成。

2. 发明申请

WO2011005511A2 A METHOD OF COMPRESSION OF GRAPHICS IMAGES AND VIDEOS 审中-公开
标题翻译：一种压缩图形图像和视频的方法
公开(公告)号：WO2011005511A2
公开(公告)日：2011-01-13
申请号：PCT/US2010/039469
申请日：2010-06-22
申请人： SONY CORPORATION , GHARAVI-ALKHANSARI, Mohammad , LIU, Wei , TABATABAI, Ali
发明人： GHARAVI-ALKHANSARI, Mohammad , LIU, Wei , TABATABAI, Ali
IPC分类号： H04N7/24
CPC分类号： H04N19/90 , H04N19/115 , H04N19/119 , H04N19/136 , H04N19/15 , H04N19/176 , H04N19/182 , H04N19/184 , H04N19/46 , H04N19/593
摘要： Compression of graphics images and videos includes partitioning an image into blocks, determining the number of bitplanes for encoding each block, encoding the block by grouping pixel values so that within each group, the pixel values are the same or similar, sending the number of bitplanes, sending the number of groups and the pixel value of each group and sending a signal for each pixel to indicate the group for that pixel, as well as using leftover bits from a bit budget for sending refinement bits for pixels.
摘要翻译：图形图像和视频的压缩包括将图像分成块，确定用于编码每个块的位平面的数量，通过对像素值进行分组来对块进行编码，使得在每个组内，像素值是相同的或类似的，发送位平面的数量，发送组的数量和每个组的像素值，并且为每个像素发送信号以指示该像素的组，并且使用来自比特预算的剩余比特来发送细化比特对于像素。

3. 发明申请

WO2011031592A2 BITSTREAM SYNTAX FOR GRAPHICS-MODE COMPRESSION IN WIRELESS HD 1.1 审中-公开
标题翻译：用于无线HD中图形模式压缩的BITSTREAM语法1.1
公开(公告)号：WO2011031592A2
公开(公告)日：2011-03-17
申请号：PCT/US2010/047403
申请日：2010-08-31
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
IPC分类号： H04N1/387 , H04N1/56 , G06T3/00
CPC分类号： H04N1/646
摘要： A method of and system for encoding high definition video content using embedded graphics coding is described. The method determines if the video content includes an RGB or YUV444 color format or a YUV422 color format. If the color scheme includes RGB or YCbCr444 data and separate encoding is used, then all three color components are encoded separately using scalar EGC. If the color scheme includes RGB or YCbCr444 data and joint encoding is used, then all three color components are jointly encoded using joint scalar EGC. If the color scheme includes YCbCr422 data and separate encoding is used, then Y, U and V are encoded separately using scalar EGC. If the color scheme includes YCbCr422 data and joint encoding is used, then Y is encoded by itself using scalar EGC and U and V are jointly encoded using joint scalar EGC.
摘要翻译：描述了使用嵌入式图形编码对高清晰度视频内容进行编码的方法和系统。该方法确定视频内容是否包括RGB或YUV444颜色格式或YUV422颜色格式。如果配色方案包含RGB或YCbCr444数据并使用单独编码，则使用标量EGC分别编码所有三种颜色成分。如果颜色方案包括RGB或YCbCr444数据并且使用联合编码，则使用联合标量EGC来联合编码所有三个颜色分量。如果配色方案包含YCbCr422数据并使用单独的编码，则使用标量EGC分别编码Y，U和V. 如果颜色方案包括YCbCr422数据并且使用联合编码，则Y使用标量EGC自己编码，并且使用联合标量EGC联合编码U和V.

4. 发明申请

WO2011046681A2 JOINT SCALAR EMBEDDED GRAPHICS CODING FOR COLOR IMAGES 审中-公开
标题翻译：彩色图像的联合标量嵌入图形编码
公开(公告)号：WO2011046681A2
公开(公告)日：2011-04-21
申请号：PCT/US2010/047397
申请日：2010-08-31
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
IPC分类号： H04N1/387 , G06T3/00
CPC分类号： G06T9/008 , H04N9/8042 , H04N19/176 , H04N19/186
摘要： An improved scalar embedded graphics coding (EGC) for wireless HD compression is described herein. The image frame to be encoded is divided into blocks, which are further divided into color groups. These groups are encoded one bit plane at a time. The improved scalar EGC method and system uses shared grouping data among color components, but bit planes of each color are separately encoded. Further, during encoding a second-level grouping is able to occur on the splitting signaling of the groups. The system and method described herein retain the simplicity of scalar EGC and attain an efficiency comparable to vector EGC.
摘要翻译：这里描述了用于无线HD压缩的改进的标量嵌入图形编码（EGC）。将要被编码的图像帧被分成多个块，这些块被进一步分成多个颜色组。这些组一次编码一个位平面。改进的标量EGC方法和系统使用颜色分量之间的共享分组数据，但是每种颜色的位平面被分别编码。此外，在编码期间，第二级分组能够在组的分割信令上发生。本文所述的系统和方法保持了标量EGC的简单性，并获得了与矢量EGC相当的效率。

5. 发明申请

WO2010144491A3 EMBEDDED GRAPHICS CODING FOR IMAGES WITH SPARSE HISTOGRAMS 审中-公开
公开(公告)号：WO2010144491A3
公开(公告)日：2010-12-16
申请号：PCT/US2010/037827
申请日：2010-06-08
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
IPC分类号： H04N7/24
摘要： Processes for compressing images with sparse histograms are disclosed. The image is divided into blocks, and a bit budget is assigned for each block. The pixels of a block are converted and coded bit-plane by bit-plane, starting from the Most Significant Bit (MSB) and going towards the Least Significant Bit (LSB). The pixels of the block are partitioned into groups. Each group contains pixels that have same value. Moving from the MSB to the LSB, the groups in each bit-plane are processed. When processing a group, the encoder sends a "0" if all group members have same bit value at the current bit-plane being processed, followed by the bit value; otherwise, the encoder sends a "1", followed by refinement bits for each pixel of the group, and the encoder splits the group.

6. 发明申请

WO2011130051A1 CONTEXT ADAPTIVE DIRECTIONAL INTRA PREDICTION 审中-公开
标题翻译：上下文自适应方向预测
公开(公告)号：WO2011130051A1
公开(公告)日：2011-10-20
申请号：PCT/US2011/031169
申请日：2011-04-05
申请人： SONY CORPORATION , LIU, Wei , MAANI, Ehsan , GHARAVI-ALKHANSARI, Mohammad
发明人： LIU, Wei , MAANI, Ehsan , GHARAVI-ALKHANSARI, Mohammad
IPC分类号： H04N7/34
CPC分类号： H04N19/14 , H04N19/11 , H04N19/176 , H04N19/61
摘要： Enhanced directional prediction apparatus and methods are taught which are based on edge-based adaptive directional estimation, for providing an improved prediction direction for intra prediction within a coding device. Image gradient vectors are obtained for pixels in the neighborhood of the current block, and edge directions determined. Candidate edge directions are processed to derive a dominant edge direction in response to defining an objective function as a summation of projections to a candidate direction and computing suggested direction of each neighboring pixel. The dominant edge direction may be utilized for the prediction direction, such as in response to a detection mode flag signaled to the decoder, or modified by an angular adjustment, which can be communicated to a decoder.
摘要翻译：教导了基于边缘自适应方向估计的增强方向预测装置和方法，用于为编码装置内的帧内预测提供改进的预测方向。为当前块的邻域中的像素获得图像梯度向量，并确定边缘方向。响应于将目标函数定义为候选方向的投影的总和并计算每个相邻像素的建议方向，处理候选边缘方向以导出主导边缘方向。主导边缘方向可以用于预测方向，诸如响应于向信号通知解码器的检测模式标志，或通过角度调整进行修改，其可被传送到解码器。

7. 发明申请

WO2011068710A3 EMBEDDED GRAPHICS CODING: REORDERED BITSTREAM FOR PARALLEL DECODING 审中-公开
公开(公告)号：WO2011068710A3
公开(公告)日：2011-06-09
申请号：PCT/US2010/057648
申请日：2010-11-22
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
IPC分类号： H04N7/26
摘要： Reordering of a bitstream is able to be used to speed up the decoding in embedded graphics coding. In the reordering, the signaling bits of all of the groups are sent and then the refinement bits of each group follow. With this reordering, the decoder can decode the header, identify the number of refinement bits for each group and locate the starting point of each group within the bitstream, therefore parallel processing of each group is able to be implemented at the decoder side.

8. 发明申请

WO2011028735A2 VECTOR EMBEDDED GRAPHICS CODING 审中-公开
标题翻译：矢量嵌入式图形编码
公开(公告)号：WO2011028735A2
公开(公告)日：2011-03-10
申请号：PCT/US2010/047401
申请日：2010-08-31
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
IPC分类号： G06T9/00 , H03M7/30
CPC分类号： G06T9/008 , G06T9/00 , H04N9/73
摘要： A method of coding High Definition (HD) color pictures is described. The method divides the HD picture into individual bit planes of the three colors. The method then interleaves the bit planes such that bit planes of the three colors having the same significance are coded together. The method codes a block of the picture based on the bit distribution in corresponding groups of the corresponding bit planes of the three colors. The method performs a first level grouping of bits in a bit plane of an image and a second level grouping of the first level grouping bits of different color components within a group.
摘要翻译：描述编码高分辨率（HD）彩色图片的方法。该方法将高清图片划分为三种颜色的各个位平面。该方法然后交织位平面，使得具有相同重要性的三种颜色的位平面被编码在一起。该方法基于三种颜色的对应位平面的对应组中的位分布对图片的块进行编码。该方法执行图像的位平面中的第一级分组以及组内不同颜色分量的第一级分组位的第二级分组。

9. 发明申请

WO2010144497A3 DESIGN TREES FOR ADAPTIVE CODING OF IMAGES AND VIDEOS USING SET PARTITIONING IN GENERALIZED HIERARCHICAL TREES HAVING DIRECTIONALITY 审中-公开
公开(公告)号：WO2010144497A3
公开(公告)日：2010-12-16
申请号：PCT/US2010/037837
申请日：2010-06-08
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad
IPC分类号： H04N7/26 , H04N7/30
摘要： Adaptive entropy encoding and decoding which utilizes Set Partitioning within Generalized Hierarchical Trees (SPRIGHT) and a method of designing trees utilizing directionality. After decorrelation and quantization a tree structure is selected from multiple candidates, based on geometric relationships within the image block, for coding the coefficients toward improving zero-clustering of coefficients. Trees for the SPRIGHT encoding are created in response to finding frequency position of each coefficient and scaling frequency position followed by use of octave-band partitioning of coefficient patterns into squares and L-shapes, and the L-shapes are iteratively partitioned into squares. The tree comprises leaf nodes containing coefficients associated with each non-leaf node. The number of zero clustered coefficients can be increased, thus decreasing the number of nodes coded into the encoded image output.

10. 发明申请

WO2012118569A1 VISUALLY OPTIMIZED QUANTIZATION 审中-公开
标题翻译：视觉优化量化
公开(公告)号：WO2012118569A1
公开(公告)日：2012-09-07
申请号：PCT/US2012/021870
申请日：2012-01-19
申请人： SONY CORPORATION , LIU, Wei , GHARAVI-ALKHANSARI, Mohammad , MAANI, Ehsan
发明人： LIU, Wei , GHARAVI-ALKHANSARI, Mohammad , MAANI, Ehsan
IPC分类号： G06K9/00
CPC分类号： H04N19/154 , H04N19/126 , H04N19/176
摘要： Visually optimized quantization is described herein. Specifically, the visually optimized quantization is for arbitrary block-based transforms such as Mode-Dependent Directional Transform (MDDT). The compression method involves the process of taking a discrete cosine transform of an MDDT basis function, obtaining the frequency weights, and computing the contrast sensitivity function for each of the frequency components. The overall effect of the distortion is calculated by error pooling and the quantization matrix is the inverse proportional of the overall effect.
摘要翻译：这里描述了视觉优化的量化。具体地，视觉上优化的量化用于诸如模式相关方向变换（MDDT）的任意的基于块的变换。压缩方法包括采用MDDT基函数的离散余弦变换，获得频率权重，以及计算每个频率分量的对比度灵敏度函数的过程。通过误差池计算失真的整体效应，量化矩阵与整体效应成反比。

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