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1. 发明申请

WO2009093947A1 PIXEL BLOCK PROCESSING 审中-公开
标题翻译：像素块处理
公开(公告)号：WO2009093947A1
公开(公告)日：2009-07-30
申请号：PCT/SE2008/051038
申请日：2008-09-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , STRÖM, Jacob , AKENINE-MÖLLER, Tomas , WENNERSTEN, Per , RASMUSSON, Jim
发明人： STRÖM, Jacob , AKENINE-MÖLLER, Tomas , WENNERSTEN, Per , RASMUSSON, Jim
IPC分类号： H04N7/26 , G06T9/00
CPC分类号： G06T9/00 , H04N19/105 , H04N19/124 , H04N19/14 , H04N19/15 , H04N19/152 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/192 , H04N19/426 , H04N19/46 , H04N19/593 , H04N19/98
摘要： A pixel block (300) is losslessly compressed into a candidate compressed block. If the bit length of the candidate block exceeds a threshold value, the property values of the pixels (310-317) in the block (300) are quantized and the quantized values are losslessly compressed into a new candidate compressed block. The procedure is repeated until a candidate compressed block having good image quality and a bit length below the threshold value is found. A compressed representation (400) of the block (300) is determined based on the found candidate compressed block (420) and an identifier (410) of the used quantization parameter.
摘要翻译：像素块（300）被无损压缩成候选压缩块。如果候选块的比特长度超过阈值，则对块（300）中的像素（310-317）的属性值进行量化，并将量化值无损压缩为新的候选压缩块。重复该过程，直到找到具有良好图像质量和位长度低于阈值的候选压缩块。基于所找到的候选压缩块（420）和使用的量化参数的标识符（410）来确定块（300）的压缩表示（400）。

2. 发明申请

WO2009092455A2 PREDICTION-BASED IMAGE PROCESSING 审中-公开
标题翻译：基于预测的图像处理
公开(公告)号：WO2009092455A2
公开(公告)日：2009-07-30
申请号：PCT/EP2008/056288
申请日：2008-05-21
申请人： Telefonaktiebolaget LM Ericsson (publ) , STRÖM, Jacob , WENNERSTEN, Per , AKENINE-MÖLLER, Tomas , RASMUSSON, Jim
发明人： STRÖM, Jacob , WENNERSTEN, Per , AKENINE-MÖLLER, Tomas , RASMUSSON, Jim
IPC分类号： H04N7/34
CPC分类号： G06T9/00 , H04N19/105 , H04N19/124 , H04N19/14 , H04N19/15 , H04N19/152 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/192 , H04N19/426 , H04N19/46 , H04N19/593
摘要： A pixel block (300) is compressed by providing a respective color component prediction for each pixel (310-318) in the block (300). A difference between color components of two neighboring pixels (312, 316) is calculated and compared to a threshold. If the difference is smaller than the threshold, the prediction is calculated based on a first linear combination the color components of these two neighboring pixels (312, 316). However, if the difference exceeds the threshold, a second or third linear combination of the color components of the neighboring pixels (312, 316) is employed a prediction. A guiding bit (470) associated with the selected linear combination. A prediction error is calculated based on the color component of the pixel (318) and the provided prediction. The compressed block (400) comprises an encoded representation (480) of the prediction error and any guiding bit (470).
摘要翻译：通过对块（300）中的每个像素（310-318）提供相应的颜色分量预测来压缩像素块（300）。计算两个相邻像素（312,316）的颜色分量之间的差异并将其与阈值进行比较。如果差值小于阈值，则基于这两个相邻像素（312,316）的颜色分量的第一线性组合来计算预测。然而，如果差超过阈值，则采用相邻像素（312,316）的颜色分量的第二或第三线性组合来进行预测。与所选择的线性组合相关联的引导位（470）。基于像素（318）的颜色分量和所提供的预测来计算预测误差。压缩块（400）包括预测误差的编码表示（480）和任何引导位（470）。

3. 发明申请

WO2008122536A2 FRAME BUFFER COMPRESSION AND DECOMPRESSION METHOD FOR GRAPHICS RENDERING 审中-公开
标题翻译：用于图形渲染的框架缓冲器压缩和解压缩方法
公开(公告)号：WO2008122536A2
公开(公告)日：2008-10-16
申请号：PCT/EP2008/053810
申请日：2008-03-31
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , RASMUSSON, Jim , AKENINE-MÖLLER, Tomas , HASSELGREN, Jon , MUNKBERG, Jacob
发明人： RASMUSSON, Jim , AKENINE-MÖLLER, Tomas , HASSELGREN, Jon , MUNKBERG, Jacob
CPC分类号： G06T11/40 , G09G5/363 , G09G5/393 , G09G2340/02 , G09G2340/10 , H04N19/12 , H04N19/147 , H04N19/154 , H04N19/176 , H04N19/40 , H04N19/423
摘要： Methods and apparatus are disclosed for the processing of frame buffer data, such as color buffer data, in graphics processing applications. Although more generally applicable, these methods and apparatus are particularly useful in real-time, polygon-based, 3D rendering applications. An exemplary method for processing graphics data according to one or more embodiments of the invention begins with the retrieval, from a buffer, of pixel values corresponding to a tile of two or more pixels, and with the updating of one or more of those updated pixel values. The updated pixel values are selectively compressed using a lossy compression operation or a lossless compression operation, based on an accumulated error metric value for the tile. If lossy compression is used, then the accumulated error metric value for the tile is updated; in either event, the compressed pixel values are stored in the frame buffer for further processing. With this approach, the accumulated error caused by successive, or tandem, compression operations may be limited to a pre-determined maximum.
摘要翻译：公开了用于在图形处理应用中处理帧缓冲器数据（例如彩色缓冲器数据）的方法和装置。尽管更普遍适用，但是这些方法和装置在实时，基于多边形的3D渲染应用中特别有用。根据本发明的一个或多个实施例的用于处理图形数据的示例性方法开始于从缓冲器检索对应于两个或更多个像素的图块的像素值，并且随着更新这些更新像素中的一个或多个值。基于瓦片的累积误差度量值，使用有损压缩操作或无损压缩操作来选择性地压缩更新的像素值。如果使用有损压缩，则更新瓦片的累积误差量度值; 在任一情况下，将压缩像素值存储在帧缓冲器中用于进一步处理。利用这种方法，由连续或串联的压缩操作引起的累积误差可能被限制为预定的最大值。

4. 发明申请

WO2006032435A1 METHOD AND SYSTEM FOR ANTI-ALIASING BY PIXEL SAMPLING 审中-公开
标题翻译：用于通过像素采样反病毒的方法和系统
公开(公告)号：WO2006032435A1
公开(公告)日：2006-03-30
申请号：PCT/EP2005/010085
申请日：2005-09-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , AKENINE-MÖLLER, Tomas , STRÖM, Jacob
发明人： AKENINE-MÖLLER, Tomas , STRÖM, Jacob
IPC分类号： G06T15/00
CPC分类号： G06T15/005 , G06T5/002 , G06T15/503 , G06T2200/12
摘要： A method, system, and article of manufacture for reducing aliasing. A method in accordance with one embodiment sampling a pixel of an image at a plurality of pixel sample points to produce a corresponding plurality of pixel sample values, wherein at least one of the plurality of pixel sample points is located at a predetermined displacement from a position along an edge of the pixel. The method further includes combining the plurality of pixel sample values to produce a displayed pixel value.
摘要翻译：用于减少混叠的方法，系统和制品。根据一个实施例的方法对多个像素采样点处的图像的像素采样以产生相应的多个像素采样值，其中所述多个像素采样点中的至少一个位于距离位置的预定位移沿像素的边缘。该方法还包括组合多个像素样本值以产生显示的像素值。

5. 发明申请

WO2009080448A1 UNIFIED COMPRESSION/DECOMPRESSION GRAPHICS ARCHITECTURE 审中-公开
标题翻译：统一的压缩/解码图形架构
公开(公告)号：WO2009080448A1
公开(公告)日：2009-07-02
申请号：PCT/EP2008/066594
申请日：2008-12-02
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , RASMUSSON, Jim , MUNKBERG, Jacob , HASSELGREN, Jon , CLARBERG, Petrik , AKENINE-MÖLLER, Tomas
发明人： RASMUSSON, Jim , MUNKBERG, Jacob , HASSELGREN, Jon , CLARBERG, Petrik , AKENINE-MÖLLER, Tomas
IPC分类号： G06T15/00
CPC分类号： G06T11/001 , G06T1/60 , G06T9/00 , G06T15/04 , G06T2210/08
摘要： A unified compression/decompression architecture is disclosed for reducing memory bandwidth requirements in 3D graphics processing applications. The techniques described erase several distinctions between a texture (compressed once, and decompressed many times), and buffers (compressed and decompressed repeatedly during rendering of an image). An exemplary method for processing graphics data according to one or more embodiments of the invention thus begins with the updating of one or more tiles of a first image array, which are then compressed, using a real-time buffer compression algorithm, to obtain compressed image array tiles. The compressed image array tiles are stored for subsequent use as a texture. During real-time rendering of a second image array, the compressed image array tiles are retrieved and decompressed using a decompression algorithm corresponding to the buffer compression algorithm. The decompressed image array tiles are then applied as a texture to one or more primitives in the second image array.
摘要翻译：公开了一种用于减少3D图形处理应用中的存储器带宽要求的统一的压缩/解压缩架构。描述的技术擦除纹理（压缩一次，解压缩多次）和缓冲区（在渲染图像期间重复压缩和解压缩）之间的几个区别。因此，根据本发明的一个或多个实施例的用于处理图形数据的示例性方法开始于使用实时缓冲器压缩算法来更新第一图像阵列的一个或多个瓦片，然后将其压缩以获得压缩图像阵列瓦片。压缩的图像阵列瓦片被存储以供随后用作纹理。在第二图像阵列的实时渲染期间，使用对应于缓冲器压缩算法的解压缩算法来检索和解压缩压缩图像阵列瓦片。然后将解压缩的图像阵列瓦片作为纹理应用于第二图像阵列中的一个或多个基元。

6. 发明申请

WO2008123825A1 MULTI-MODE VECTOR-BASED IMAGE PROCESSING 审中-公开
标题翻译：多模式矢量图像处理
公开(公告)号：WO2008123825A1
公开(公告)日：2008-10-16
申请号：PCT/SE2008/050375
申请日：2008-03-31
申请人： Telefonaktiebolaget LM Ericsson (publ) , AKENINE-MÖLLER, Tomas , MUNKBERG, Jacob , STRÖM, Jacob
发明人： AKENINE-MÖLLER, Tomas , MUNKBERG, Jacob , STRÖM, Jacob
IPC分类号： G06T15/20 , G06T9/00
CPC分类号： G06T9/005 , G06T9/00 , G06T9/008 , H04N19/176
摘要： A block (300) of image elements (310) is compressed by identifying a base vector (460) based on normalized feature vectors (312) of the block (300). If a position-determining coordinate (420) of the base vector (460) is present inside a defined selection section (530) of feature vector space (500), the block (300) is compressed according to a default mode and an auxiliary mode to get a default and auxiliary compressed block (600), respectively. The compressed block (600) resulting in smallest compression error is selected. If the auxiliary mode is selected, the position-determining coordinate (420) is mappedto get a mapped coordinate (425) present outside the representable normalization portion (510) of vector space (500). The auxiliary compressed block (600) comprises a representation of this mappedcoordinate (425). If the default mode is selected no such coordinate mappingis performedand the default compressed block (600) instead comprises a representation of the non-mirrored coordinate (420).
摘要翻译：通过基于块（300）的归一化特征向量（312）识别基本向量（460）来压缩图像元素（310）的块（300）。如果基本向量（460）的位置确定坐标（420）存在于特征向量空间（500）的定义的选择部分（530）内，则根据默认模式和辅助模式来压缩块（300）获得默认和辅助压缩块（600）。选择导致最小压缩误差的压缩块（600）。如果选择辅助模式，则映射位置确定坐标（420）以获得呈现在向量空间（500）的可表示归一化部分（510）之外的映射坐标（425）。辅助压缩块（600）包括该映射协调的表示（425）。如果选择了默认模式，则不进行这样的坐标映射并且默认压缩块（600）包括非镜像坐标的表示（420）。

7. 发明申请

WO2008123823A1 VECTOR-BASED IMAGE PROCESSING 审中-公开
标题翻译：基于矢量图像处理
公开(公告)号：WO2008123823A1
公开(公告)日：2008-10-16
申请号：PCT/SE2008/050309
申请日：2008-03-19
申请人： Telefonaktiebolaget LM Ericsson (publ) , AKENINE-MÖLLER, Tomas , MUNKBERG, Jacob , STRÖM, Jacob
发明人： AKENINE-MÖLLER, Tomas , MUNKBERG, Jacob , STRÖM, Jacob
IPC分类号： G06T15/20
CPC分类号： G06T9/005 , G06T9/00 , G06T9/008 , H04N19/176
摘要： A block (300) of image elements (310) is compressed by determining multiple base vectors (510, 520, 530, 540) based on the feature vectors (312) associated with the image elements. Additional vectors (560, 570) are calculated based on defined pairs of neighboring base vectors (510, 520, 530, 540). A vector among the base vectors (510, 520, 530, 540) and the additional vectors (560, 570) is selected as representation of the feature vector (312) of an image element (310). An identifier (550) associated with selected vector is assigned to the image element (310) and included in the compressed block (500) which also comprises representations of the determined base vectors (510, 520, 530, 540).
摘要翻译：基于与图像元素相关联的特征向量（312），通过确定多个基本向量（510,520,530,540）来压缩图像元素（310）的块（300）。基于定义的邻近基本向量对（510,520,530,540）来计算附加向量（560,570）。选择基本向量（510,520,530,540）和附加向量（560,570）之间的向量作为图像元素（310）的特征向量（312）的表示。与所选择的向量相关联的标识符（550）被分配给图像元素（310），并被包括在压缩块（500）中，该压缩块（500）还包括所确定的基本向量（510,520,530,540）的表示。

8. 发明申请

WO2010147529A1 METHODS AND ARRANGEMENTS FOR IMAGE PROCESSING 审中-公开
标题翻译：图像处理的方法和布置
公开(公告)号：WO2010147529A1
公开(公告)日：2010-12-23
申请号：PCT/SE2009/051483
申请日：2009-12-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RASMUSSON, Jim , AKENINE-MÖLLER, Tomas , WENNERSTEN, Per , STRÖM, Jakob
发明人： RASMUSSON, Jim , AKENINE-MÖLLER, Tomas , WENNERSTEN, Per , STRÖM, Jakob
IPC分类号： G06T9/00
CPC分类号： H04N1/64 , G06T9/00 , H04N19/14 , H04N19/428 , H04N19/593
摘要： The present invention relates to methods and arrangements for compressing images. The invention is based on the fact that edge blocks contain much information in one direction (across the edge), but very little information in the other direction (along the edge). By encoding edges explicitly, it is possible to obtain a high quality to a very low cost for many blocks. A block is encoded by first specifying the orientation of the edge in the block, and then specifying the profile across the edge using a function with a small number of parameters.
摘要翻译：本发明涉及压缩图像的方法和装置。本发明基于以下事实：边缘块在一个方向（跨越边缘）包含许多信息，但在另一个方向（沿着边缘）包含很少的信息。通过明确地编码边缘，可以获得许多块的高质量到非常低的成本。通过首先指定块中边缘的方向，然后使用少量参数的函数来指定边缘上的轮廓来对块进行编码。

9. 发明申请

WO2007084062A2 IMAGE PROCESSING 审中-公开
标题翻译：图像处理
公开(公告)号：WO2007084062A2
公开(公告)日：2007-07-26
申请号：PCT/SE2007/000053
申请日：2007-01-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL). , AKENINE-MÖLLER, Tomas , MUNKBERG, Jacob , CLARBERG, Petrik , HASSELGREN, Jon , STRÖM, Jacob
发明人： AKENINE-MÖLLER, Tomas , MUNKBERG, Jacob , CLARBERG, Petrik , HASSELGREN, Jon , STRÖM, Jacob
IPC分类号： H04N7/26 , G06T9/00
CPC分类号： G06T9/00 , H04N19/103 , H04N19/176 , H04N19/90
摘要： First (710) and (720) second codewords are determined, based on first feature vector components of the image elements (610) in an image block (600), as representations of a first (10) and second (12) component value. Third (730) and fourth (740) codewords are determined, based on second vector components, as representations of a third (20) and fourth (22) component value. First N1 and second N2 resolution numbers are selected based on the relation of a distribution of the first vector components and a distribution of the second vector components. N1 additional component values are generated based on the first (10) and second (12) component values and N2 additional component values are generated based on the third (20) and fourth (22) component values. Component indices indicative of the generated component values (750, 760) are then provided for the different image elements (610).
摘要翻译：基于图像块（600）中的图像元素（610）的第一特征向量分量，将第一（710）和（720）第二码字确定为第一（10）和第二（12）分量值。基于第二矢量分量，第三（730）和第四（740）码字被确定为第三（20）和第四（22）分量值的表示。基于第一矢量分量的分布与第二矢量分量的分布的关系来选择第一N1和第二N2分辨率数。基于第一（10）和第二（12）分量值生成N1个附加分量值，并且基于第三（20）和第四（22）分量值生成N2个附加分量值。然后为不同的图像元素（610）提供指示所生成的分量值（750,760）的分量索引。

10. 发明申请

WO2006006915A1 MULTI-MODE IMAGE PROCESSING 审中-公开
标题翻译：多模式图像处理
公开(公告)号：WO2006006915A1
公开(公告)日：2006-01-19
申请号：PCT/SE2005/001070
申请日：2005-07-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , STRÖM, Jacob , AKENINE-MÖLLER, Tomas
发明人： STRÖM, Jacob , AKENINE-MÖLLER, Tomas
IPC分类号： G06T9/00
CPC分类号： G06T9/00 , H04N19/12 , H04N19/176 , H04N19/186 , H04N19/91
摘要： The invention is applied to image processing schemes by providing at least one auxiliary block processing mode in addition to the standard default block processing mode of the scheme. An image to be decoded is divided into a number of image blocks (800) having multiple image elements (810). These blocks (800) are individually compressed by means of a default compressing mode or an auxiliary compressing mode, depending on which mode that results in a smallest error metric. A portion (980) of the resulting compressed block (900) is used to discriminate between the two modes. In the auxiliary mode, the remaining payload portion (990) of the compressed block (900) can be used for encoding purposes, whereas the default mode can in addition utilize the discriminating portion (980).
摘要翻译：除了方案的标准默认块处理模式之外，还通过提供至少一个辅助块处理模式将本发明应用于图像处理方案。要解码的图像被划分为具有多个图像元素（810）的多个图像块（800）。这些块（800）通过默认压缩模式或辅助压缩模式被单独压缩，取决于导致最小误差度量的哪个模式。所得到的压缩块（900）的部分（980）用于区分两种模式。在辅助模式中，压缩块（900）的剩余有效载荷部分（990）可以用于编码目的，而默认模式可以另外使用识别部分（980）。

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