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21. 发明申请

WO2008112550A3 DATA COMPRESSION USING VARIABLE-TO-FIXED LENGTH CODES 审中-公开
标题翻译：使用可变固定长度代码的数据压缩
公开(公告)号：WO2008112550A3
公开(公告)日：2009-02-12
申请号：PCT/US2008056225
申请日：2008-03-07
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： H03M7/40
CPC分类号： H03M7/40 , H04N19/61 , H04N19/91
摘要： This disclosure is directed to techniques for memory efficient variable to fixed length (VF) coding techniques for a variety of applications, such as digital video, image, audio, or speech data. The techniques described in this disclosure may utilize algebraic properties of VF coding trees constructed using Tunstall or Khodak algorithms, and employ combinatorial enumeration techniques for construction, encoding and decoding of codewords.
摘要翻译：本公开涉及用于诸如数字视频，图像，音频或语音数据的各种应用的用于存储器有效的可变到固定长度（VF）编码技术的技术。本公开中描述的技术可以利用使用Tunstall或Khodak算法构建的VF编码树的代数特性，并且采用组合枚举技术来构造，编码和解码码字。

22. 发明申请

WO2008002881A2 REDUCTION OF ERRORS DURING COMPUTATION OF INVERSE DISCRETE COSINE TRANSFORM 审中-公开
标题翻译：在反演离散COSINE变换计算过程中减少误差
公开(公告)号：WO2008002881A2
公开(公告)日：2008-01-03
申请号：PCT/US2007072039
申请日：2007-06-25
申请人： QUALCOMM INC , GARUDADRI HARINATH , REZNIK YURIY
发明人： GARUDADRI HARINATH , REZNIK YURIY
IPC分类号： G06F17/14
CPC分类号： G06F17/147 , H04N19/45 , H04N19/60 , H04N19/61
摘要： Techniques are described to reduce rounding errors during computation of discrete cosine transform using fixed-point calculations. According to these techniques, a discrete cosine transform a matrix of scaled coefficients is calculated by multiplying coefficients in a matrix of coefficients by scale factors. Next, a midpoint bias value and a supplemental bias value are added to a DC coefficient of the matrix of scaled coefficients. Next, an inverse discrete cosine transform is applied to the resulting matrix of scaled coefficients. Values in the resulting matrix are then right-shifted in order to derive a matrix of pixel component values. As described herein, the addition of the supplemental bias value to the DC coefficient reduces rounding errors attributable to this right-shifting. As a result, a final version of a digital media file decompressed using these techniques may more closely resemble an original version of a digital media file.
摘要翻译：描述了使用定点计算在离散余弦变换计算期间减少舍入误差的技术。根据这些技术，通过用系数矩阵乘以比例因子来计算缩放系数矩阵的离散余弦变换。接下来，将中点偏置值和补充偏置值加到缩放系数矩阵的DC系数中。接下来，将逆离散余弦变换应用于所得到的缩放系数矩阵。然后将所得矩阵中的值右移，以便导出像素分量值的矩阵。如这里所述，补充偏置值加到DC系数可以减少归因于该右移的舍入误差。因此，使用这些技术解压缩的数字媒体文件的最终版本可能更接近于数字媒体文件的原始版本。

23. 发明申请

WO2007047478A2 EFFICIENT MULTIPLICATION-FREE COMPUTATION FOR SIGNAL AND DATA PROCESSING 审中-公开
标题翻译：用于信号和数据处理的高效无误码计算
公开(公告)号：WO2007047478A2
公开(公告)日：2007-04-26
申请号：PCT/US2006040165
申请日：2006-10-12
申请人： QUALCOMM INC , REZNIK YURIY , CHUNG HYUKJUNE , GARUDADRI HARINATH , SRINIVASAMURTHY NAVEEN D , SAGETONG PHOOM
发明人： REZNIK YURIY , CHUNG HYUKJUNE , GARUDADRI HARINATH , SRINIVASAMURTHY NAVEEN D , SAGETONG PHOOM
CPC分类号： G06F17/147 , H03H17/0225 , H04N19/42 , H04N19/60 , H04N19/61 , H04N19/70
摘要： Techniques for efficiently performing computation for signal and data processing are described. For multiplication-free processing, a series of intermediate values is generated based on an input value for data to be processed. At least one intermediate value in the series is generated based on at least one other intermediate value in the series. One intermediate value in the series is provided as an output value for a multiplication of the input value with a constant value. The constant value may be an integer constant, a rational constant, or an irrational constant. An irrational constant may be approximated with a rational dyadic constant having an integer numerator and a denominator that is a power of twos. The multiplication-free processing may be used for various transforms (e.g., DCT and IDCT), filters, and other types of signal and data processing.
摘要翻译：描述了用于有效执行信号和数据处理计算的技术。对于无需乘法处理，根据要处理的数据的输入值生成一系列中间值。基于该系列中的至少一个其它中间值，生成该系列中的至少一个中间值。该系列中的一个中间值被提供为用于将输入值与常数值相乘的输出值。常数值可以是整数常数，有理常数或非理性常数。非理性常数可以用具有整数分子和二分之一的分母的有理二元常数近似。无乘法处理可以用于各种变换（例如，DCT和IDCT），滤波器以及其它类型的信号和数据处理。

24. 发明申请

WO2011005573A3 8-POINT TRANSFORM FOR MEDIA DATA CODING 审中-公开
标题翻译：用于媒体数据编码的8点变换
公开(公告)号：WO2011005573A3
公开(公告)日：2012-07-12
申请号：PCT/US2010039660
申请日：2010-06-23
申请人： QUALCOMM INC , REZNIK YURIY , JOSHI RAJAN L , KARCZEWICZ MARTA
发明人： REZNIK YURIY , JOSHI RAJAN L , KARCZEWICZ MARTA
IPC分类号： H04N7/26 , G06F17/14
CPC分类号： H04N19/00812 , G06F17/147 , H04N19/42 , H04N19/45 , H04N19/61 , H04N19/625
摘要： In general, techniques are described for implementing an 8-point discrete cosine transform (DCT). An apparatus comprising an 8-point discrete cosine transform (DCT) hardware unit may implement these techniques to transform media data from a spatial domain to a frequency domain. The 8-point DCT hardware unit includes an even portion comprising factors A, B that are related to a first scaled factor (µ) in accordance with a first relationship. The 8-point DCT hardware unit also includes an odd portion comprising third, fourth, fifth and sixth internal factors (G, D, E, Z) that are related to a second scaled factor (?) in accordance with a second relationship. The first relationship relates the first scaled factor to the first and second internal factors. The second relationship relates the second scaled factor to the third internal factor and a fourth internal factor, as well as, the fifth internal factor and a sixth internal factor.
摘要翻译：通常，描述了用于实现8点离散余弦变换（DCT）的技术。包括8点离散余弦变换（DCT）硬件单元的装置可以实施这些技术以将媒体数据从空间域转换到频域。 8点DCT硬件单元包括与根据第一关系的第一缩放因子（μ）相关的因子A，B的偶数部分。 8点DCT硬件单元还包括与根据第二关系的第二比例因子（α）相关的第三，第四，第五和第六内部因素（G，D，E，Z）的奇数部分。第一个关系将第一个缩放因子与第一个和第二个内部因素相关联。第二个关系将第二个缩放因子与第三个内在因素和第四个内在因素以及第五个内在因素和第六个内在因素联系起来。

25. 发明申请

WO2011069021A3 FEATURE MATCHING BY CLUSTERING DETECTED KEPOINTS IN QUERY AND MODEL IMAGES 审中-公开
标题翻译：通过在查询和模型图像中聚类检测的KEPOIN的特征匹配
公开(公告)号：WO2011069021A3
公开(公告)日：2011-08-18
申请号：PCT/US2010058805
申请日：2010-12-02
申请人： QUALCOMM INC , VADDADI SUNDEEP , HONG JOHN H , HAMSICI ONUR C , REZNIK YURIY , LEE CHONG U
发明人： VADDADI SUNDEEP , HONG JOHN H , HAMSICI ONUR C , REZNIK YURIY , LEE CHONG U
IPC分类号： G06K9/64
CPC分类号： G06K9/6211
摘要： A method for feature matching in image recognition is provided. First, image scaling may be based on a feature distribution across scale spaces for an image to estimate image size/resolution, where peak(s) in the keypoint distribution at different scales is used to track a dominant image scale and roughly track object sizes. Second, instead of using all detected features in an image for feature matching, keypoints may be pruned based on cluster density and/or the scale level in which the keypoints are detected. Keypoints falling within high-density clusters may be preferred over features falling within lower density clusters for purposes of feature matching. Third, inlier-to-outlier keypoint ratios are increased by spatially constraining keypoints into clusters in order to reduce or avoid geometric consistency checking for the image.
摘要翻译：提供了一种图像识别中的特征匹配方法。首先，图像缩放可以基于用于图像的尺度空间上的特征分布来估计图像尺寸/分辨率，其中使用不同尺度的关键点分布中的峰值来跟踪主要图像尺度并粗略地跟踪对象尺寸。第二，不是使用图像中的所有检测到的特征来进行特征匹配，而是可以基于簇密度和/或检测关键点的比例级别来修剪关键点。落入高密度簇内的关键点可能优于落入低密度簇内的特征，用于特征匹配。第三，通过空间约束关键点进入群集来增加从早到晚的关键点比例，以便减少或避免图像的几何一致性检查。

26. 发明申请

WO2010077658A3 FAST PARSING OF VARIABLE-TO-FIXED-LENGTH CODES 审中-公开
标题翻译：快速描述可变长度代码
公开(公告)号：WO2010077658A3
公开(公告)日：2010-10-21
申请号：PCT/US2009067148
申请日：2009-12-08
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： H03M7/40
CPC分类号： H03M7/40
摘要： Methods and systems for parsing and decoding compressed data are provided. Random segments of the compressed data may be decompressed and positioned appropriately in the corresponding uncompressed data set. The methods and systems utilize variable to fixed length (VF) coding techniques. For some applications, the VF coding techniques may be implemented within media encoders, decoders, or combined encoder-decoders (CODECs).
摘要翻译：提供了用于解析和解码压缩数据的方法和系统。压缩数据的随机段可以被解压缩并且适当地定位在相应的未压缩数据集中。该方法和系统利用可变到固定长度（VF）编码技术。对于一些应用，VF编码技术可以在媒体编码器，解码器或组合的编码器 - 解码器（CODEC）内实现。

27. 发明申请

WO2010080662A2 LOW-COMPLEXITY TRANSFORMS FOR DATA COMPRESSION AND DECOMPRESSION 审中-公开
标题翻译：用于数据压缩和分解的低复杂度变换
公开(公告)号：WO2010080662A2
公开(公告)日：2010-07-15
申请号：PCT/US2009069471
申请日：2009-12-23
申请人： QUALCOMM INC , REZNIK YURIY , CHIVUKULA RAVI KIRAN , LEE CHONG U
发明人： REZNIK YURIY , CHIVUKULA RAVI KIRAN , LEE CHONG U
IPC分类号： G06F17/14
CPC分类号： G06F17/147 , H04N19/122 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/30 , H04N19/61
摘要： This disclosure describes the use of non-dyadic discrete cosine transform (DCT) sizes for performing a DCT. Similarly, this disclosure describes the use of non-dyadic inverse discrete cosine transform (IDCT) sizes for performing an IDCT. Using non-dyadic transform sizes may be less computationally expensive compared to using conventional dyadic transform sizes. Aspects of this disclosure may be useful in any device or system that performs a DCT or IDCT.
摘要翻译：本公开描述了使用非二次离散余弦变换（DCT）尺寸来执行DCT。类似地，本公开描述了使用非二次逆离散余弦变换（IDCT）大小来执行IDCT。与使用常规二进制变换大小相比，使用非二进制变换大小可能计算成本较低。本公开的方面在用于执行DCT或IDCT的任何设备或系统中可能是有用的。

28. 发明申请

WO2008061143A3 MEMORY EFFICIENT ADAPTIVE BLOCK CODING 审中-公开
标题翻译：存储有效的自适应块编码
公开(公告)号：WO2008061143A3
公开(公告)日：2008-07-10
申请号：PCT/US2007084682
申请日：2007-11-14
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： H03M7/40
CPC分类号： H03M7/40
摘要： In general, this disclosure is directed to techniques for memory efficient and low complexity adaptive variable length coding (VLC) of data for a variety of applications, such as coding of digital video, image, audio, or speech data. In some aspects, the techniques may exploit properties of particular sets of codewords to support very compact data structures. In other aspects, the techniques may support low-complexity, adaptive encoding and decoding of binary sequences produced by memoryless sources.
摘要翻译：一般来说，本发明针对用于多种应用（例如数字视频，图像，音频或语音数据的编码）的存储高效和低复杂度自适应可变长度编码（VLC）数据的技术。在一些方面，这些技术可以利用特定码字集的属性来支持非常紧凑的数据结构。在其他方面，这些技术可以支持由无记忆源产生的二进制序列的低复杂度，自适应编码和解码。

29. 发明申请

WO2008061008A3 MEMORY EFFICIENT CODING OF VARIABLE LENGTH CODES 审中-公开
标题翻译：可变长度代码的高效编码
公开(公告)号：WO2008061008A3
公开(公告)日：2008-07-10
申请号：PCT/US2007084270
申请日：2007-11-09
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： H03M7/40
CPC分类号： H03M7/40 , H03M7/4006 , H04N19/61 , H04N19/91 , H04N19/93
摘要： In general, this disclosure is directed to techniques for memory efficient and low complexity adaptive variable length coding (VLC) of data for a variety of applications, such as coding of digital video, image, audio, or speech data. In some aspects, the techniques may exploit properties of particular sets of codewords to support very compact data structures. In other aspects, the techniques may support low-complexity, adaptive encoding and decoding of binary sequences produced by memoryless sources.
摘要翻译：通常，本公开涉及用于各种应用的数据的存储器有效和低复杂度自适应可变长度编码（VLC）的技术，例如数字视频，图像，音频或语音数据的编码。在一些方面，这些技术可以利用特定的码字集合的属性来支持非常紧凑的数据结构。在其他方面，这些技术可以支持由无记忆源产生的二进制序列的低复杂度，自适应编码和解码。

30. 发明申请

WO2007115127A2 TRANSFORM DESIGN WITH SCALED AND NON-SCALED INTERFACES 审中-公开
标题翻译：用尺寸和非标准接口进行变形设计
公开(公告)号：WO2007115127A2
公开(公告)日：2007-10-11
申请号：PCT/US2007065548
申请日：2007-03-29
申请人： QUALCOMM INC , REZNIK YURIY , LUDWIN ALBERT SCOTT , CHUNG HYUKJUNE , GARUDADRI HARINATH , SRINIVASAMURTHY NAVEEN B , SAGETONG PHOOM
发明人： REZNIK YURIY , LUDWIN ALBERT SCOTT , CHUNG HYUKJUNE , GARUDADRI HARINATH , SRINIVASAMURTHY NAVEEN B , SAGETONG PHOOM
IPC分类号： G06F17/14
CPC分类号： G06F17/14 , G06F17/147 , H04N19/42 , H04N19/61
摘要： Techniques for efficiently performing full and scaled transforms on data received via full and scaled interfaces, respectively, are described. A full transform is a transform that implements the complete mathematical description of the transform. A full transform operates on or provides full transform coefficients. A scaled transform is a transform that operates on or provides scaled transform coefficients, which are scaled versions of the full transform coefficients. The scaled transform may have lower computational complexity whereas the full transform may be simpler to use by applications. The full and scaled transforms may be for a 2D IDCT, which may be implemented in a separable manner with 1D IDCTs. The full and scaled transforms may also be for a 2D DCT, which may be implemented in a separable manner with 1D DCTs. The 1D IDCTs and 1D DCTs may be implemented in a computationally efficient manner.
摘要翻译：描述了分别对通过完整和缩放界面接收的数据进行全面和缩放变换的技术。全变换是实现变换的完整数学描述的变换。完全变换在全变换系数上运行或提供全变换系数。缩放变换是对或者提供缩放变换系数的变换，其是全变换系数的缩放版本。缩放变换可能具有较低的计算复杂度，而全变换可能更易于由应用使用。完整和缩放的变换可以用于2D IDCT，其可以用1D IDCT以可分离的方式实现。完整和缩放变换也可以用于2D DCT，其可以用1D DCT以可分离的方式实现。 1D IDCT和1D DCT可以以计算有效的方式实现。

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