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31. 发明申请

US20130142266A1 CO-COMPRESSION AND CO-DECOMPRESSION OF DATA VALUES 有权
标题翻译：数据值的共同压缩和共同解除
公开(公告)号：US20130142266A1
公开(公告)日：2013-06-06
申请号：US13817000
申请日：2010-09-03
申请人： Jacob Ström , Per Wennersten
发明人： Jacob Ström , Per Wennersten
IPC分类号： H03M7/30 , G10L19/00
CPC分类号： H03M7/30 , G06T9/008 , G10L19/00 , H03M7/3082 , H04N19/126 , H04N19/51
摘要： A first and a second data value are co-compressed by generating a sequence of symbols having a most significant symbol that is the most significant symbol of a compressed representation of the first data value and a least significant symbol that is the most significant symbol of a compressed representation of the second data value. The compressed representation of the first data value corresponds to at least a portion of the symbols of the sequence of symbols starting from the most significant symbol and extending towards the least significant symbol in a first reading direction. The compressed representation of the second data value also corresponds to at least a portion of the symbols of the sequence of symbols, however, starting from the least significant symbol and extending in an opposite reading direction towards the most significant symbol.
摘要翻译：通过产生具有最高有效符号的符号序列来共同压缩第一和第二数据值，所述最重要符号是第一数据值的压缩表示的最高有效符号，以及作为第一数据值的最重要符号的最小有效符号第二数据值的压缩表示。第一数据值的压缩表示对应于从最高有效符号开始的符号序列的符号的至少一部分，并且朝向第一读取方向上的最小有效符号延伸。第二数据值的压缩表示也对应于符号序列的符号的至少一部分，然而，从最小有效符号开始并且朝着最重要符号的相反读取方向延伸。

32. 发明申请

US20130011059A1 Prediction-Based Image Processing 有权
标题翻译：基于预测的图像处理
公开(公告)号：US20130011059A1
公开(公告)日：2013-01-10
申请号：US13619127
申请日：2012-09-14
申请人： Jacob Ström , Per Wennersten , Tomas Akenine-Moller , Jim Rasmusson
发明人： Jacob Ström , Per Wennersten , Tomas Akenine-Moller , Jim Rasmusson
IPC分类号： G06K9/36
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 is compressed by providing a respective color component prediction for each pixel in the block. A difference between color components of two neighboring pixels 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 of the color components of these two neighboring pixels. However, if the difference exceeds the threshold, a second or third linear combination of the color components of the neighboring pixels is employed in the prediction. A guiding bit associated with the selected linear combination may be used. A prediction error is calculated based on the color component of the pixel and the provided prediction. The compressed block comprises an encoded representation of the prediction error and any guiding bit.
摘要翻译：通过为块中的每个像素提供相应的颜色分量预测来压缩像素块。计算两个相邻像素的颜色分量之间的差异并将其与阈值进行比较。如果差小于阈值，则基于这两个相邻像素的颜色分量的第一线性组合来计算预测。然而，如果差异超过阈值，则在预测中采用相邻像素的颜色分量的第二或第三线性组合。可以使用与所选择的线性组合相关联的引导位。基于像素的颜色分量和所提供的预测来计算预测误差。压缩块包括预测误差和任何引导位的编码表示。

33. 发明授权

US08331664B2 Prediction-based image processing 有权
标题翻译：基于预测的图像处理
公开(公告)号：US08331664B2
公开(公告)日：2012-12-11
申请号：US12863214
申请日：2008-05-21
申请人： Jacob Strom , Per Wennersten , Tomas Akenine-Moller , Jim Rasmusson
发明人： Jacob Strom , Per Wennersten , Tomas Akenine-Moller , Jim Rasmusson
IPC分类号： G06K9/00 , G06K9/36 , G06K9/46 , H04N7/12 , H04N11/02 , H04N11/04
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 is compressed by providing a respective color component prediction for each pixel in the block. A difference between color components of two neighboring pixels 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 of the color components of these two neighboring pixels. However, if the difference exceeds the threshold, a second or third linear combination of the color components of the neighboring pixels is employed in the prediction. A guiding bit associated with the selected linear combination may be used. A prediction error is calculated based on the color component of the pixel and the provided prediction. The compressed block comprises an encoded representation of the prediction error and any guiding bit.
摘要翻译：通过为块中的每个像素提供相应的颜色分量预测来压缩像素块。计算两个相邻像素的颜色分量之间的差异并将其与阈值进行比较。如果差小于阈值，则基于这两个相邻像素的颜色分量的第一线性组合来计算预测。然而，如果差异超过阈值，则在预测中采用相邻像素的颜色分量的第二或第三线性组合。可以使用与所选择的线性组合相关联的引导位。基于像素的颜色分量和所提供的预测来计算预测误差。压缩块包括预测误差和任何引导位的编码表示。

34. 发明申请

US20110176739A1 Pixel Block Processing 有权
标题翻译：像素块处理
公开(公告)号：US20110176739A1
公开(公告)日：2011-07-21
申请号：US13120336
申请日：2008-11-18
申请人： Jacob Strom , Per Wennersten
发明人： Jacob Strom , Per Wennersten
IPC分类号： G06K9/36
CPC分类号： G06T9/00
摘要： A compressed pixel block (400) is decompressed by defining multiple available property values. At least one reference point relative the pixel block (300) is identified based on a reference codeword (410) of the compressed pixel block (400). Pixel indices of the pixels (310) are determined based on the respective positions of pixels (310) in the pixel block (300) relative the at least one reference point. These pixel indices are used for selecting among the multiple defined property values. The selected property values are then assigned to pixels (310) to be decompressed based on their determined pixel indices.
摘要翻译：通过定义多个可用属性值来解压缩压缩像素块（400）。基于压缩像素块（400）的参考码字（410）来识别相对于像素块（300）的至少一个参考点。基于相对于至少一个参考点的像素块（300）中的像素（310）的相应位置来确定像素（310）的像素索引。这些像素索引用于在多个定义的属性值之间进行选择。然后将所选择的属性值分配给像素（310），以根据它们确定的像素索引进行解压缩。

35. 发明申请

US20100296745A1 Pixel Block Processing 有权
标题翻译：像素块处理
公开(公告)号：US20100296745A1
公开(公告)日：2010-11-25
申请号：US12863692
申请日：2008-09-17
申请人： Jacob Strom , Tomas Akenine-Moller , Per Wennersten
发明人： Jacob Strom , Tomas Akenine-Moller , Per Wennersten
IPC分类号： G06K9/36
CPC分类号： H04N19/192 , H04N19/115 , H04N19/162 , H04N19/176
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）。

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