专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09143160B2 Co-compression and co-decompression of data values 有权
标题翻译：协同压缩和共同减压的数据值
公开(公告)号：US09143160B2
公开(公告)日：2015-09-22
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 , G06T9/00 , G10L19/00 , H04N19/51 , H04N19/126
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。

2. 发明申请

US20140079115A1 ENCODING AND DECODING VIDEO SEQUENCES COMPRISING REFERENCE PICTURE SETS 有权
标题翻译：编码和解码包含参考图像集的视频序列
公开(公告)号：US20140079115A1
公开(公告)日：2014-03-20
申请号：US14000506
申请日：2013-07-01
申请人： Jacob Ström , Jonatan Samuelsson , Rickard Sjöberg
发明人： Jacob Ström , Jonatan Samuelsson , Rickard Sjöberg
IPC分类号： H04N7/26
CPC分类号： H04N19/58 , H04N19/105 , H04N19/136 , H04N19/139 , H04N19/174 , H04N19/176 , H04N19/463 , H04N19/70
摘要： A method of encoding a video sequence comprising Reference Picture Sets (RPSs) is provided. The method comprises arranging the RPSs in transmission order in a data structure, such as a Sequence Parameter Set (SPS), determining whether explicit RPS transmission is used for an RPS of a current picture of the video sequence, and encoding information indicating an RPS comprised in the data structure to be used for predicting the RPS of the current picture, such as delta_idx_minus1, only if explicit RPS transmission is used. By transmitting delta_idx_minus1 only if explicit RPS transmission is used, and interpreting delta_idx_minus1 to be equal to zero otherwise, a reduced bitrate is achieved. Further, a method of decoding a video sequence comprising RPSs, corresponding computer programs and computer program products, as well as corresponding encoders and decoders are provided.
摘要翻译：提供了一种编码包括参考图像集（RPS）的视频序列的方法。该方法包括以诸如序列参数集（SPS）的数据结构中的传输顺序来布置RPS，确定是否将用于视频序列的当前图像的RPS的显式RPS传输用于指示包括的RPS的编码信息在用于预测当前图像的RPS的数据结构中，例如Δ_idx_minus1，仅在使用显式RPS传输时。只有当使用了显式RPS传输时才传输delta_idx_minus1，否则将delta_idx_minus1解释为等于零，就可以实现降低的比特率。此外，提供了一种对包括RPS，对应的计算机程序和计算机程序产品的视频序列进行解码的方法，以及对应的编码器和解码器。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 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。

9. 发明授权

US07940283B2 Method and apparatus for pixel sampling 有权
标题翻译：像素采样方法和装置
公开(公告)号：US07940283B2
公开(公告)日：2011-05-10
申请号：US11719742
申请日：2005-11-18
申请人： Jacob Ström , Tomas Akenine-Möller
发明人： Jacob Ström , Tomas Akenine-Möller
IPC分类号： G09G5/00
CPC分类号： G06T11/00 , G06T3/4007
摘要： A method and a device for generating a pixel value from a plurality of sample values being generated from a plurality of sample points. The method comprises generating a plurality of sample values; and weighting said plurality of sample values for determining said pixel value. Each sample value is generated from one of a plurality of candidate sample points within a sample region. The sample region is positioned at a corner of two intersecting borders of the pixel. The size of the sample region is smaller than the size of the pixel. The device is arranged to carry out the method according to the invention.
摘要翻译：一种用于从多个采样点产生的多个样本值生成像素值的方法和装置。该方法包括生成多个样本值; 以及对所述多个采样值加权以确定所述像素值。每个样本值从样本区域内的多个候选样本点中的一个生成。样本区域位于像素的两个相交边界的拐角处。样本区域的大小小于像素的大小。该装置被设置为执行根据本发明的方法。

10. 发明申请

US20100014766A1 MULTI-MODE VECTOR-BASED IMAGE PROCESSING 有权
标题翻译：多模式矢量图像处理
公开(公告)号：US20100014766A1
公开(公告)日：2010-01-21
申请号：US12522736
申请日：2008-03-31
申请人： Tomas Akenine-Möller , Munkberg Jacob , Jacob Ström
发明人： Tomas Akenine-Möller , Munkberg Jacob , Jacob Ström
IPC分类号： G06K9/36
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 mapped to 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 mapped coordinate (425). If the default mode is selected no such coordinate mapping is performed and the default compressed block (600) instead comprises a representation of the non-mirrored coordinate
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）。如果选择了辅助模式，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）包括该映射坐标的表示（425）。如果选择了默认模式，则不执行这样的坐标映射，并且默认压缩块（600）代替地包括非镜像坐标的表示

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式