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1. 发明申请

WO2010141899A3 4X4 TRANSFORM FOR MEDIA CODING 审中-公开
标题翻译： 4X4变换媒体编码
公开(公告)号：WO2010141899A3
公开(公告)日：2012-05-18
申请号：PCT/US2010037513
申请日：2010-06-04
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： G06F17/14 , H04N7/26
CPC分类号： H04N19/625 , G06F17/147 , H04N19/124 , H04N19/42 , H04N19/45 , H04N19/51 , H04N19/61 , H04N19/91
摘要： In general, techniques are described that provide for 4x4 transforms for media coding. A number of different 4x4 transforms are described that adhere to these techniques. As one example, an apparatus includes a 4x4 discrete cosine transform (DCT) hardware unit. The DCT hardware unit implements an orthogonal 4x4 DCT having an odd portion that applies first and second internal factors (C, S) that are related to a scaled factor (?) such that the scaled factor equals a square root of a sum of a square of the first internal factor (C) plus a square of the second internal factor (S). The 4x4 DCT hardware unit applies the 4x4 DCT implementation to media data to transform the media data from a spatial domain to a frequency domain. As another example, an apparatus implements a non-orthogonal 4x4 DCT to improve coding gain.
摘要翻译：一般而言，描述了为媒体编码提供4×4变换的技术。描述了许多不同的4x4变换符合这些技术。作为一个例子，装置包括4×4离散余弦变换（DCT）硬件单元。 DCT硬件单元实现具有奇数部分的正交4×4DCT，所述奇数部分应用与缩放因子（α）有关的第一和第二内部因子（C，S），使得缩放因子等于平方和第一个内部因素（C）加上第二个内部因素（S）的平方。 4x4 DCT硬件单元将4x4 DCT实现应用于媒体数据，以将媒体数据从空间域转换到频域。作为另一个例子，装置实现非正交的4×4DCT以改善编码增益。

2. 发明申请

WO2012016168A2 OBJECT RECOGNITION USING INCREMENTAL FEATURE EXTRACTION 审中-公开
标题翻译：使用增量特征提取的对象识别
公开(公告)号：WO2012016168A2
公开(公告)日：2012-02-02
申请号：PCT/US2011045942
申请日：2011-07-29
申请人： QUALCOMM INC , BAHETI PAWAN KUMAR , VADDADI SUNDEEP , SWAMINATHAN ASHWIN , REZNIK YURIY , HAMSICI ONUR C , CHARI MURALI RAMASWAMY , HONG JOHN H , LEE CHONG UK
发明人： BAHETI PAWAN KUMAR , VADDADI SUNDEEP , SWAMINATHAN ASHWIN , REZNIK YURIY , HAMSICI ONUR C , CHARI MURALI RAMASWAMY , HONG JOHN H , LEE CHONG UK
IPC分类号： G06K9/46
CPC分类号： G06K9/6857 , G06K9/4671
摘要： In one example, an apparatus includes a processor configured to extract a first set of one or more keypoints from a first set of blurred images of a first octave of a received image, calculate a first set of one or more descriptors for the first set of keypoints, receive a confidence value for a result produced by querying a feature descriptor database with the first set of descriptors, wherein the result comprises information describing an identity of an object in the received image, and extract a second set of one or more keypoints from a second set of blurred images of a second octave of the received image when the confidence value does not exceed a confidence threshold. In this manner, the processor may perform incremental feature descriptor extraction, which may improve computational efficiency of object recognition in digital images.
摘要翻译：在一个示例中，一种装置包括处理器，该处理器被配置为从接收到的图像的第一八度的第一组模糊图像中提取第一组一个或多个关键点，计算第一组的一个或多个描述符接收关于通过用第一组描述符查询特征描述符数据库产生的结果的置信度值，其中所述结果包括描述所接收的图像中的对象的身份的信息，并且从第二组关键点提取一个或多个关键点当置信度值不超过置信度阈值时，所接收图像的第二八度音阶的第二组模糊图像。以这种方式，处理器可以执行递增特征描述符提取，这可以提高数字图像中对象识别的计算效率。

3. 发明申请

WO2008005757A2 EFFICIENT FIXED-POINT APPROXIMATIONS OF FORWARD AND INVERSE DISCRETE COSINE TRANSFORMS 审中-公开
标题翻译：正反分离余弦变换的有效不动点逼近
公开(公告)号：WO2008005757A2
公开(公告)日：2008-01-10
申请号：PCT/US2007072169
申请日：2007-06-26
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
CPC分类号： G06F17/147 , H04N19/45 , H04N19/61
摘要： Techniques are described to approximate computation of an inverse discrete cosine transform using fixed-point calculations. According to these techniques, matrixes of scaled coefficients are generated by multiplying coefficients in matrixes of encoded coefficients by scale factors. Next, matrixes of biased coefficients are generated by adding a midpoint bias value to a DC coefficient of the matrix of scaled coefficients. Fixed-point arithmetic is then used to apply a transform to the matrixes of biased coefficients. Values in the resulting matrixes are then right-shifted in order to derive matrixes of pixel component values. Matrixes of pixel component values are then combined to create matrixes of pixels. The matrixes of pixels generated by these techniques closely resemble matrixes of pixels decompressed using the ideal inverse discrete cosine transform ("IDCT").
摘要翻译：描述了使用定点计算近似计算逆离散余弦变换的技术。根据这些技术，缩放系数矩阵通过将编码系数矩阵中的系数乘以缩放因子来生成。接下来，通过将中点偏差值添加到缩放系数矩阵的DC系数来生成偏置系数的矩阵。然后使用定点算术将变换应用于有偏系数的矩阵。然后将得到的矩阵中的值右移，以便导出像素分量值的矩阵。像素分量值的矩阵然后被组合以创建像素矩阵。由这些技术生成的像素矩阵与使用理想的反离散余弦变换（“IDCT”）解压缩的像素的矩阵非常相似。

4. 发明申请

WO2008002897A2 REDUCTION OF ERRORS DURING COMPUTATION OF INVERSE DISCRETE COSINE TRANSFORM 审中-公开
标题翻译：在反演离散余弦变换计算过程中减少误差
公开(公告)号：WO2008002897A2
公开(公告)日：2008-01-03
申请号：PCT/US2007072088
申请日：2007-06-26
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： G06F17/14 , H04N7/26
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, an inverse discrete cosine transform a vector of coefficients is calculated using a series of butterfly structure operations on fixed-point numbers. 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，使用对定点数量的一系列蝶形结构操作来计算系数向量的逆离散余弦变换。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。

5. 发明申请

WO2011005572A3 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：WO2011005572A3
公开(公告)日：2012-05-31
申请号：PCT/US2010039657
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： G06F17/14 , H04N7/26
CPC分类号： H04N19/625 , G06F17/147 , H04N19/60
摘要： In general, techniques are described for implementing an 8-point inverse discrete cosine transform (IDCT). An apparatus comprising an 8-point inverse discrete cosine transform (IDCT) hardware unit may implement these techniques to transform media data from a frequency domain to a spatial domain. The 8-point IDCT 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 IDCT 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, fourth, fifth and sixth internal factors.
摘要翻译：通常，描述了用于实现8点逆离散余弦变换（IDCT）的技术。包括8点逆离散余弦变换（IDCT）硬件单元的装置可实施这些技术以将媒体数据从频域转换为空间域。 8点IDCT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IDCT硬件单元还包括与根据第二关系的第二缩放因子（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比例因素与第三个，第四个，第五个和第六个内部因素联系起来。

6. 发明申请

WO2010121077A3 COMPUTING EVEN-SIZED DISCRETE COSINE TRANSFORMS 审中-公开
标题翻译：计算即将来临的离散COSINE变换
公开(公告)号：WO2010121077A3
公开(公告)日：2011-11-17
申请号：PCT/US2010031314
申请日：2010-04-15
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： G06F17/14
CPC分类号： G06F17/147 , H04N19/122 , H04N19/134 , H04N19/176 , H04N19/30 , H04N19/61 , H04N19/625
摘要： In general, techniques are described for computing even-sized discrete cosine transforms (DCTs). For example, a coding device may implement these techniques. The coding device includes a DCT-II unit that first determines whether a DCT-II to perform is a multiple of two, and in response to determining that the DCT-II to perform is a multiple of two, performs the DCT-II. To perform the DCT-II, the DCT-II unit computes a butterfly and reverses an order of a first sub-set of the outputs of the butterfly. The DCT-II unit then recursively subtracts the reverse-ordered first sub-set of the butterfly outputs. The DCT-II unit computes a sub-DCT-II for a second sub-set of the butterfly outputs and a sub-DCT-III for the recursively subtracted first set of butterfly outputs. The DCT-II unit reorders the outputs produced by the sub-DCT-II and sub-DCT-III to generate output values of the DCT-II.
摘要翻译：通常，描述了用于计算均匀尺寸的离散余弦变换（DCT）的技术。例如，编码装置可以实现这些技术。编码装置包括DCT-II单元，其首先确定要执行的DCT-II是否是2的倍数，并且响应于确定要执行的DCT-II是两倍的倍数，执行DCT-II。为了执行DCT-II，DCT-II单元计算蝴蝶并反转蝴蝶输出的第一子集的顺序。 DCT-II单元然后递归地减去蝶形输出的反向有序的第一子集。 DCT-II单元计算蝴蝶输出的第二子集的子DCT-II和用于递归减法的第一组蝶形输出的子DCT-III。 DCT-II单元对由子DCT-II和子DCT-III产生的输出进行重新排序以产生DCT-II的输出值。

7. 发明申请

WO2011113026A2 IMAGE FEATURE DETECTION BASED ON APPLICATION OF MULTIPLE FEATURE DETECTORS 审中-公开
标题翻译：基于多特征检测器的图像特征检测
公开(公告)号：WO2011113026A2
公开(公告)日：2011-09-15
申请号：PCT/US2011028232
申请日：2011-03-11
申请人： QUALCOMM INC , HONG JOHN H , HAMSICI ONUR C , DOS SANTOS JOSE R , HUANG JOSEPH , LEE CHONG U , REZNIK YURIY , MURPHY MARK K , YAMAKAWA DEVENDER A
发明人： HONG JOHN H , HAMSICI ONUR C , DOS SANTOS JOSE R , HUANG JOSEPH , LEE CHONG U , REZNIK YURIY , MURPHY MARK K , YAMAKAWA DEVENDER A
IPC分类号： G06K9/46
CPC分类号： G06K9/4671
摘要： In a particular embodiment, a method includes applying a first feature detector to a portion of an image to detect a first set of features. The first set of features is used to locate a region of interest, and a boundary corresponding to the region of interest is determined. The method also includes displaying the boundary at a display. In response to receiving user input to accept the displayed boundary, a second feature detector is applied to an area of the image encapsulated by the boundary.
摘要翻译：在特定实施例中，一种方法包括将第一特征检测器应用于图像的一部分以检测第一组特征。第一组特征用于定位感兴趣区域，并且确定与感兴趣区域对应的边界。该方法还包括在显示器上显示边界。响应于接收用户输入以接受所显示的边界，将第二特征检测器应用于由边界封装的图像的区域。

8. 发明申请

WO2009032740A3 FAST COMPUTATION OF PRODUCTS BY DYADIC FRACTIONS WITH SIGN-SYMMETRIC ROUNDING ERRORS 审中-公开
标题翻译：通过具有符号对称错误的DYADIC分段快速计算产品
公开(公告)号：WO2009032740A3
公开(公告)日：2011-02-10
申请号：PCT/US2008074607
申请日：2008-08-28
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： G06F17/14 , G06F7/499
CPC分类号： G06F7/483 , G06F7/49942 , G06F7/533 , G06F17/147 , H04N19/42 , H04N19/60
摘要： A product of an integer value and an irrational value may be determined by a sign-symmetric algorithm. A process may determine possible algorithms that minimize metrics such as mean asymmetry, mean error, variance of error, and magnitude of error. Given an integer variable x and rational dyadic constants that approximate the irrational fraction, a series of intermediate values may be produced that are sign-symmetric. The intermediate values may include a sequence of addition, subtraction and right shift operations the when summed together approximate the product of the integer and irrational value. Other operations, such as additions or subtractions of Os or shifts by 0 bits may be removed.
摘要翻译：可以通过符号对称算法来确定整数值和非理性值的乘积。过程可以确定最小化诸如平均不对称性，平均误差，误差方差和误差大小的度量的可能算法。给定一个整数变量x和近似非理性分数的有理二元常数，可以产生一系列中间值，这些中间值是符号对称的。中间值可以包括加法，减法和右移操作的序列，当加在一起近似整数和非理性值的乘积时。可以删除其他操作，例如添加或减少O或移位0位。

9. 发明申请

WO2007082272A3 TRANSFORMS WITH COMMON FACTORS 审中-公开
标题翻译：与共同因素的转变
公开(公告)号：WO2007082272A3
公开(公告)日：2008-10-02
申请号：PCT/US2007060405
申请日：2007-01-11
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： G06F17/14 , H04N7/26
CPC分类号： G06F17/147 , G06F7/4836 , G06F7/60 , H04N19/61 , H04N19/625
摘要： Techniques for efficiently performing transforms on data are described. In one design, an apparatus performs multiplication of a first group of at least one data value with a first group of at least one rational dyadic constant that approximates a first group of at least one irrational constant scaled by a first common factor. The apparatus further performs multiplication of a second group of at least one data value with a second group of at least one rational dyadic constant that approximates a second group of at least one irrational constant scaled by a second common factor. Each rational dyadic constant is a rational number with a dyadic denominator. The first and second groups of at least one data value have different sizes. The first and common factors may be selected based on the number of logical and arithmetic operations for the multiplications, the precision of the results, etc.
摘要翻译：描述了有效执行数据转换的技术。在一种设计中，一种装置执行第一组至少一个数据值与至少一个理性二元常数的第一组的乘法，该组合近似于由第一公共因子缩放的至少一个非理性常数的第一组。该装置进一步执行第二组至少一个数据值与至少一个理性二元常数的第二组的乘法，该第二组接近由第二公共因子缩放的至少一个非理性常数的第二组。每个理性二元常数是具有二进制分母的理性数。至少一个数据值的第一组和第二组具有不同的大小。可以基于乘法的逻辑和算术运算的数量，结果的精度等来选择第一和常见的因素。

10. 发明申请

WO2010141903A3 4X4 TRANSFORM FOR MEDIA CODING 审中-公开
标题翻译： 4X4用于媒体编码的变换
公开(公告)号：WO2010141903A3
公开(公告)日：2012-05-18
申请号：PCT/US2010037518
申请日：2010-06-04
申请人： QUALCOMM INC , REZNIK YURIY
发明人： REZNIK YURIY
IPC分类号： G06F17/14 , H04N7/26
CPC分类号： G06F17/147 , H04N19/42 , H04N19/45 , H04N19/61 , H04N19/625
摘要： In general, techniques are described that provide for 4x4 transforms for media coding. A number of different 4x4 transforms are described that adhere to these techniques. As one example, an apparatus includes a 4x4 discrete cosine transform (DCT) hardware unit. The DCT hardware unit implements an orthogonal 4x4 DCT having an odd portion that applies first and second internal factors (C, S) that are related to a scaled factor (?) such that the scaled factor equals a square root of a sum of a square of the first internal factor (C) plus a square of the second internal factor (S). The 4x4 DCT hardware unit applies the 4x4 DCT implementation to media data to transform the media data from a spatial domain to a frequency domain. As another example, an apparatus implements a non-orthogonal 4x4 DCT to improve coding gain.
摘要翻译：通常，描述了为媒体编码提供4x4变换的技术。描述了许多遵循这些技术的不同4x4变换。作为一个示例，装置包括4×4离散余弦变换（DCT）硬件单元。 DCT硬件单元实现具有奇数部分的正交4×4 DCT，该奇数部分应用与缩放因子（α）相关的第一和第二内部因子（C，S），使得缩放因子等于平方和的平方根的第一内因子（C）加上第二内因子（S）的平方。 4x4 DCT硬件单元将4x4 DCT实现应用于媒体数据，以将媒体数据从空间域转换为频域。作为另一示例，设备实现非正交的4×4 DCT以提高编码增益。

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