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21. 发明授权

US08494268B2 Method and arrangement for retrieving information comprised in a barcode 有权
标题翻译：用于检索包含在条形码中的信息的方法和装置
公开(公告)号：US08494268B2
公开(公告)日：2013-07-23
申请号：US12918378
申请日：2009-02-24
申请人： Joakim Söderberg , Jacob Ström , Jonas Alfthan
发明人： Joakim Söderberg , Jacob Ström , Jonas Alfthan
IPC分类号： G06K9/00 , G06K7/00
CPC分类号： G06K7/1465 , G06K7/14 , G06K7/1443 , G06K7/1456
摘要： A method of retrieving information comprised in a barcode is disclosed. The method comprises detecting that the barcode is present in a first image having a first image quality and capturing a first region, acquiring, when it is detected that the barcode is present, a second image having a second image quality and capturing a second region, wherein the second image quality is higher than the first image quality, and wherein the second region at least partly overlaps the first region, and decoding the barcode based on the second image to retrieve the information. A corresponding program product and a corresponding arrangement are also disclosed along with a communication device comprising the arrangement.
摘要翻译：公开了一种检索包含在条形码中的信息的方法。该方法包括检测条形码是否存在于具有第一图像质量的第一图像中并且捕获第一区域，当检测到条形码存在时获取具有第二图像质量并捕获第二区域的第二图像，其中所述第二图像质量高于所述第一图像质量，并且其中所述第二区域至少部分地与所述第一区域重叠，以及基于所述第二图像对所述条形码进行解码以检索所述信息。还公开了相应的节目产品和相应的配置以及包括该装置的通信设备。

22. 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。

23. 发明授权

US08457417B2 Weight based image processing 有权
标题翻译：基于重量的图像处理
公开(公告)号：US08457417B2
公开(公告)日：2013-06-04
申请号：US11915669
申请日：2006-05-24
申请人： Jacob Ström
发明人： Jacob Ström
IPC分类号： G06K9/36
CPC分类号： G06T9/00 , G06T9/001 , G06T9/004 , H04N19/105 , H04N19/176 , H04N19/186 , H04N19/593
摘要： In an image-encoding scheme, an input image is decomposed into several image blocks (600) comprising multiple image elements (610). The image blocks (600) are encoded into encoded block representations (700). In this encoding, color weights are assigned to the image elements (610) in the block (600) based on their relative positions in the block (600). At least two color codeword (710, 720, 730, 740) are determined, at least partly based on the color weights. These codewords (710, 720, 730, 740) are representations of at least two color values. The original colors of the image elements (610) are represented by color representations derivable from combinations of the at least two color values weighted by the assigned color weights.
摘要翻译：在图像编码方案中，将输入图像分解成包括多个图像元素的多个图像块（600）（610）。图像块（600）被编码成编码块表示（700）。在该编码中，基于块（600）中的相对位置，将颜色权重分配给块（600）中的图像元素（610）。至少部分地基于颜色权重来确定至少两个颜色码字（710,720,730,740）。这些码字（710,720,730,740）是至少两个颜色值的表示。图像元素（610）的原始颜色由通过由分配的颜色权重加权的至少两个颜色值的组合导出的颜色表示来表示。

24. 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。

25. 发明申请

US20110194609A1 Selecting Predicted Motion Vector Candidates 审中-公开
标题翻译：选择预测运动矢量候选者
公开(公告)号：US20110194609A1
公开(公告)日：2011-08-11
申请号：US13022170
申请日：2011-02-07
申请人： Thomas Rusert , Jacob Ström , Kenneth Andersson , Per Wennersten , Rickard Sjöberg
发明人： Thomas Rusert , Jacob Ström , Kenneth Andersson , Per Wennersten , Rickard Sjöberg
IPC分类号： H04N7/32
CPC分类号： H04N19/105 , H04N19/137 , H04N19/176 , H04N19/52
摘要： There is provided a method of selecting PMV candidates, wherein each PMV candidate corresponds to a motion vector used for coding of a previous block, said previous block having a distance from a current block. The method comprises identifying allowed distance values of distances between the current block and the previous block. The method further comprises selecting a set of PMV candidates as a subset of the set of previously coded motion vectors that were used for previous blocks having an allowed distance from the current block.
摘要翻译：提供了一种选择PMV候选的方法，其中每个PMV候选对应于用于前一块的编码的运动矢量，所述先前块具有与当前块的距离。该方法包括识别当前块和先前块之间的距离的允许距离值。该方法还包括选择一组PMV候选作为先前编码的运动矢量集合的子集，其用于具有来自当前块的允许距离的先前块。

26. 发明申请

US20110194608A1 Managing Predicted Motion Vector Candidates 审中-公开
标题翻译：管理预测的运动矢量候选者
公开(公告)号：US20110194608A1
公开(公告)日：2011-08-11
申请号：US13022133
申请日：2011-02-07
申请人： Thomas Rusert , Jacob Ström , Kenneth Andersson , Per Wennersten , Rickard Sjöberg
发明人： Thomas Rusert , Jacob Ström , Kenneth Andersson , Per Wennersten , Rickard Sjöberg
IPC分类号： H04N7/12
CPC分类号： H04N19/105 , H04N19/137 , H04N19/176 , H04N19/52
摘要： There is provided a method of managing PMV candidates. The method comprises selecting a set of PMV candidates as a subset of the previously coded motion vectors. The method further comprises assigning a code value to each PMV candidate in the set of PMV candidates. The code values vary in length and are assigned to the PMV candidates in order of expected usage such that the PMV candidate having the highest expected usage has one of the shortest code values.
摘要翻译：提供了一种管理PMV候选人的方法。该方法包括选择一组PMV候选作为先前编码的运动矢量的子集。该方法还包括向PMV候选集合中的每个PMV候选分配码值。代码值的长度不同，按照预期的使用顺序分配给PMV候选，使得具有最高预期使用的PMV候选具有最短代码值之一。

27. 发明申请

US20070071333A1 Multi-mode image processing 有权
标题翻译：多模式图像处理
公开(公告)号：US20070071333A1
公开(公告)日：2007-03-29
申请号：US10583453
申请日：2004-12-17
申请人： Jacob Ström , Tomas Akenine-Moller
发明人： Jacob Ström , Tomas Akenine-Moller
IPC分类号： G06K9/36 , G06K9/00
CPC分类号： H04N19/90 , H04N19/12 , H04N19/14 , H04N19/154 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/436 , H04N19/46
摘要： An image encoding and decoding scheme operable according two different modes depending on properties of the processed image is disclosed. In the encoding, an image is decomposed into image blocks (600) comprising image elements (610). The blocks (600) are compressed into block representations (700A, 700B) according to one of two compression modes. A block representation (700A; 700B) comprises two codewords (720A, 730A; 720B, 730B) representing properties of the image elements (610) in the block (600) and a sequence (740A; 740B) of image element associated indices indicative of one of the codewords (720B, 730B) or a property representation generated based on a codeword (730A). The block representation (700A; 700B) also includes a mode index representing the mode, according to which the block representation (700A; 700B) was compressed. This mode index can be provided before, during or after generation of the codewords (720A, 730A; 720B, 730B) and index sequence (740A; 740B). In the decoding, the codewords (720A, 730A; 720B, 730B) and index sequence (740A; 740B) are used to decompress the block representation (700A; 700B) according a decompression mode determined by the mode index (710A; 710B).
摘要翻译：公开了根据处理的图像的属性根据两种不同模式操作的图像编码和解码方案。在编码中，图像被分解为包括图像元素（610）的图像块（600）。根据两种压缩模式之一，块（600）被压缩成块表示（700A，700B）。块表示（700A; 700B）包括表示块（600）中的图像元素（610）的属性的两个码字（720A，730A; 720B，730B）和序列（740A; 740B ）指示码字（720B，730B）中的一个的图像元素相关索引或基于码字（730A）生成的属性表示。块表示（700A; 700B）还包括表示模式的模式索引，根据该模式，块表示（700A; 700B）被压缩。可以在码字（720A，730A; 720B，730B）和索引序列（740A; 740B）生成之前，期间或之后提供该模式索引。在解码中，使用码字（720A，730A; 720B，730B）和索引序列（740A; 740B）根据由所述解码模式确定的解压缩模式来解压缩块表示（700A; 700B）模式指数（710A; 710B）。

28. 发明授权

US09111328B2 Texture compression and decompression 有权
标题翻译：纹理压缩和解压缩
公开(公告)号：US09111328B2
公开(公告)日：2015-08-18
申请号：US13640203
申请日：2011-02-09
申请人： Jim Rasmusson , Michael Doggett , Jacob Ström , Per Wennersten
发明人： Jim Rasmusson , Michael Doggett , Jacob Ström , Per Wennersten
IPC分类号： G06T11/40 , G06T9/00
CPC分类号： G06T9/00
摘要： Embodiments relate to compression and decompression of textures. A texel block (10) is compressed by specifying two major directions in the texel block (10) and defining the profiles of how the texel values change along the respective directions. The resulting compressed texel block (30) comprises two value codewords (31, 32), two line codewords (35-38) and a function codeword (33, 34). The two value codewords (31, 32) are employed to calculate two texel values for the texel block (10). The line codewords (35-38) are employed to determine equations of two lines (20, 22) coinciding with the two major directions in the texel block (10). Signed distances are calculated for each texel (12) from the texel position in the texel block (10) and to the two lines (20, 22). The signed distances are input to a function defined by the function codeword (33, 34) to output two values from which weights are calculated and applied to the two texel values in order to get a representation of the texel value of a texel (12).
摘要翻译：实施例涉及纹理的压缩和解压缩。通过在纹素块（10）中指定两个主要方向来压缩纹理块（10），并且定义纹理值沿着各个方向如何变化的轮廓。所得到的压缩纹理块（30）包括两个值码字（31,32），两行码字（35-38）和一个功能码字（33,34）。两个值码字（31,32）用于计算纹素块（10）的两个纹素值。行码字（35-38）用于确定与纹理块（10）中的两个主要方向一致的两条线（20,22）的等式。从纹理块（10）中的纹素位置和两条线（20,22）中的每个纹理像素（12）计算签名距离。有符号距离被输入到由功能代码字（33,34）定义的函数，以输出计算权重的两个值并将其应用于两个纹素值，以便获得纹素的纹理值的表示（12）。

29. 发明授权

US08750637B2 Barcode processing 有权
标题翻译：条码处理
公开(公告)号：US08750637B2
公开(公告)日：2014-06-10
申请号：US13258386
申请日：2009-06-26
申请人： Jacob Ström , Saeed Yahyanejad
发明人： Jacob Ström , Saeed Yahyanejad
IPC分类号： G06K9/40 , G06T5/00
CPC分类号： G06T5/003 , G06K7/146 , G06T5/40 , G06T2207/20201 , G06T2207/30176
摘要： A blurred barcode image is processed by providing an image representation thereof comprising grayscale values. The image representation is deconvoluted using a candidate motion kernel to get a deconvoluted representation. A barcode similarity measure is calculated for the deconvoluted representation to indicate how close the distribution of the grayscale values of the deconvoluted representation is to an optimal distribution for a barcode image. The kernel provision, deconvolution and measure calculation are repeated for different candidate kernels and the candidate kernel resulting in a deconvoluted representation that is closest to a barcode image as determined based on the barcode similarity measures is selected. The selected kernel is used for deconvoluting the blurred barcode image to get a deblurred barcode image that can be read and decoded.
摘要翻译：通过提供其包括灰度值的图像表示来处理模糊的条形码图像。使用候选运动内核对图像表示进行解卷积以获得去卷积的表示。针对解卷积表示计算条形码相似性度量，以指示去卷积表示的灰度值的分布与条形码图像的最优分布接近的程度。针对不同的候选内核重复内核提供，去卷积和度量计算，并且选择基于条形码相似性度量确定的最接近条形码图像的去卷积表示的候选内核。所选择的内核用于解卷积模糊条形码图像以获得可被读取和解码的去模糊条形码图像。

30. 发明申请

US20140023287A1 Method and an Arrangement for Texture Compression 有权
标题翻译：方法和纹理压缩的布置
公开(公告)号：US20140023287A1
公开(公告)日：2014-01-23
申请号：US14009440
申请日：2011-08-24
申请人： Jacob Ström , Jim Rasmusson
发明人： Jacob Ström , Jim Rasmusson
IPC分类号： G06T9/00
CPC分类号： G06T9/00 , G06T9/004 , H04N19/126 , H04N19/154 , H04N19/176 , H04N19/593
摘要： The embodiments of the present invention reduce the compression time in order to achieve a faster texture compression. That is achieved by guessing, i.e. estimating the best table or tables (e.g. from tables 0 to 7) representing luminance information, and to only execute the compression for the table(s) estimated to provide the best luminance information.
摘要翻译：本发明的实施例减小了压缩时间，以便实现更快的纹理压缩。这是通过猜测，即估计表示亮度信息的最佳表或表（例如从表0到7）来实现的，并且仅对被估计提供最佳亮度信息的表执行压缩。

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