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1. 发明授权

US09081733B2 16-point transform for media data coding 有权
标题翻译：用于媒体数据编码的16点变换
公开(公告)号：US09081733B2
公开(公告)日：2015-07-14
申请号：US12820346
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： H04N7/12 , H04N11/02 , G06F17/14
CPC分类号： G06F17/147 , H04N19/42 , H04N19/61 , H04N19/625
摘要： In general, techniques are described for implementing a 16-point inverse discrete cosine transform (IDCT) that is capable of applying multiple IDCTs of different sizes. For example, an apparatus comprising a 16-point inverse discrete cosine transform of type II (IDCT-II) unit may implement the techniques of this disclosure. The 16-point IDCT-II unit performs these IDCTs-II of different sizes to transform data from a spatial to a frequency domain. The 16-point IDCT-II unit includes an 8-point IDCT-II unit that performs one of the IDCTs-II of size 8 and a first 4-point IDCT-II unit that performs one of the IDCTs-II of size 4. The 8-point IDCT-II unit includes the first 4-point DCT-II unit. The 16-point IDCT-II unit also comprises an inverse 8-point DCT-IV unit that includes a second 4-point IDCT-II unit and a third 4-point IDCT-II unit. Each of the second and third 4-point IDCT-II units performs one of the IDCTs-II of size 4.
摘要翻译：一般来说，描述了实现能够应用不同大小的多个IDCT的16点离散余弦变换（IDCT）的技术。例如，包括II型（IDCT-II）单元的16点逆离散余弦变换的装置可以实现本公开的技术。 16点IDCT-II单元执行不同尺寸的这些IDCT-II以将数据从空间变换到频域。 16点IDCT-II单元包括执行尺寸为8的IDCT-II之一的8点IDCT-II单元和执行大小为4的IDCT-II之一的第一个4点IDCT-II单元。 8点IDCT-II单元包括第一个4点DCT-II单元。 16点IDCT-II单元还包括具有第二4点IDCT-II单元和第三个4点IDCT-II单元的逆8点DCT-IV单元。第二和第三4点IDCT-II单元中的每一个执行大小为4的IDCT-II之一。

2. 发明申请

US20100329329A1 8-POINT TRANSFORM FOR MEDIA DATA CODING 有权
标题翻译：用于媒体数据编码的8点变换
公开(公告)号：US20100329329A1
公开(公告)日：2010-12-30
申请号：US12820312
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： H04N7/12
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 (η) 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比例因子（＆eegr）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。

3. 发明授权

US09185422B2 Variable localized bit-depth increase for fixed-point transforms in video coding 有权
标题翻译：视频编码中定点变换的可变局部化位深增加
公开(公告)号：US09185422B2
公开(公告)日：2015-11-10
申请号：US13159063
申请日：2011-06-13
申请人： Rajan L. Joshi , Wei-Jung Chien , Marta Karczewicz , Yuriy Reznik , Peisong Chen , Hsiao-Chiang Chuang
发明人： Rajan L. Joshi , Wei-Jung Chien , Marta Karczewicz , Yuriy Reznik , Peisong Chen , Hsiao-Chiang Chuang
IPC分类号： H04N7/12 , H04N19/42 , H04N19/176 , H04N19/46 , H04N19/196 , H04N19/122 , H04N19/61 , H04N19/60 , H04N19/157 , H04N19/184
CPC分类号： H04N19/42 , H04N19/122 , H04N19/157 , H04N19/176 , H04N19/184 , H04N19/196 , H04N19/46 , H04N19/60 , H04N19/61
摘要： This disclosure describes techniques for mitigating rounding errors in a fixed-point transform associated with video coding by applying a variable localized bit-depth increase at the transform. More specifically, the techniques include selecting a constant value based on a size of a fixed-point transform in a video coding device and applying a variable localized bit-depth increase at the transform with a value equal to the constant value. Applying the variable localized bit-depth increase includes left-shifting a transform input signal by a number of bits equal to the constant value before the fixed-point transform, and right-shifting a transform output signal by a number of bits equal to the constant value after the fixed-point transform. The constant value is selected from a plurality of constant values stored on the video coding device. Each of the constant values is pre-calculated for one of a plurality of different transform sizes supported by the video coding.
摘要翻译：本公开描述了通过在变换处应用可变局部位深增加来减轻与视频编码相关联的定点变换中的舍入误差的技术。更具体地，这些技术包括基于视频编码装置中的定点变换的大小来选择常数值，并且在变换时以等于常数值的值应用可变的局部位深增加。应用可变局部位置深度增加包括将变换输入信号左移到等于定点变换之前的常数值的位数，并且将变换输出信号右移到等于常数的位数定点变换后的值。从存储在视频编码装置上的多个常数值中选择常数值。对于由视频编码支持的多个不同的变换大小之一，预先计算每个常数值。

4. 发明申请

US20110153699A1 16-POINT TRANSFORM FOR MEDIA DATA CODING 有权
标题翻译：用于媒体数据编码的16点变换
公开(公告)号：US20110153699A1
公开(公告)日：2011-06-23
申请号：US12820346
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： G06F17/14
CPC分类号： G06F17/147 , H04N19/42 , H04N19/61 , H04N19/625
摘要： In general, techniques are described for implementing a 16-point inverse discrete cosine transform (IDCT) that is capable of applying multiple IDCTs of different sizes. For example, an apparatus comprising a 16-point inverse discrete cosine transform of type II (IDCT-II) unit may implement the techniques of this disclosure. The 16-point IDCT-II unit performs these IDCTs-II of different sizes to transform data from a spatial to a frequency domain. The 16-point IDCT-II unit includes an 8-point IDCT-II unit that performs one of the IDCTs-II of size 8 and a first 4-point IDCT-II unit that performs one of the IDCTs-II of size 4. The 8-point IDCT-II unit includes the first 4-point DCT-II unit. The 16-point IDCT-II unit also comprises an inverse 8-point DCT-IV unit that includes a second 4-point IDCT-II unit and a third 4-point IDCT-II unit. Each of the second and third 4-point IDCT-II units performs one of the IDCTs-II of size 4.
摘要翻译：一般来说，描述了实现能够应用不同大小的多个IDCT的16点离散余弦变换（IDCT）的技术。例如，包括II型（IDCT-II）单元的16点逆离散余弦变换的装置可以实现本公开的技术。 16点IDCT-II单元执行不同尺寸的这些IDCT-II以将数据从空间变换到频域。 16点IDCT-II单元包括执行尺寸为8的IDCT-II之一的8点IDCT-II单元和执行尺寸为4的IDCT-II之一的第一个4点IDCT-II单元。 8点IDCT-II单元包括第一个4点DCT-II单元。 16点IDCT-II单元还包括具有第二4点IDCT-II单元和第三个4点IDCT-II单元的逆8点DCT-IV单元。第二和第三4点IDCT-II单元中的每一个执行大小为4的IDCT-II之一。

5. 发明申请

US20110150079A1 16-POINT TRANSFORM FOR MEDIA DATA CODING 有权
标题翻译：用于媒体数据编码的16点变换
公开(公告)号：US20110150079A1
公开(公告)日：2011-06-23
申请号：US12820357
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： H04N7/30
CPC分类号： G06F17/147 , H04N19/122 , H04N19/176 , H04N19/42 , H04N19/61 , H04N19/625
摘要： In general, techniques are described for implementing a 16-point discrete cosine transform (DCT) that is capable of applying multiple IDCT of different sizes. For example, an apparatus comprising a 16-point discrete cosine transform of type II (DCT-II) unit may implement the techniques of this disclosure. The 16-point DCT-II unit performs these DCTs-II of different sizes to transform data from a spatial to a frequency domain. The 16-point DCT-II unit includes an 8-point DCT-II unit that performs one of the DCTs-II of size 8 and a first 4-point DCT-II unit that performs one of the DCTs-II of size 4. The 8-point DCT-II unit includes the first 4-point DCT-II unit. The 16-point DCT-II unit also comprises an 8-point DCT-IV unit that includes a second 4-point DCT-II unit and a third 4-point DCT-II unit. Each of the second and third 4-point DCT-II units performs one of the DCTs-II of size 4.
摘要翻译：通常，描述了用于实现能够应用不同大小的多个IDCT的16点离散余弦变换（DCT）的技术。例如，包括II型（DCT-II）单元的16点离散余弦变换的装置可以实现本公开的技术。 16点DCT-II单元执行不同尺寸的DCT-II以将数据从空间变换到频域。 16点DCT-II单元包括执行尺寸为8的DCT-II之一的8点DCT-II单元和执行尺寸为4的DCT-II之一的第一个4点DCT-II单元。 8点DCT-II单元包括第一个4点DCT-II单元。 16点DCT-II单元还包括8点DCT-IV单元，其包括第二个4点DCT-II单元和第三个4点DCT-II单元。第二和第三4点DCT-II单元中的每一个执行大小为4的DCT-II之一。

6. 发明授权

US09118898B2 8-point transform for media data coding 有权
标题翻译：用于媒体数据编码的8点变换
公开(公告)号：US09118898B2
公开(公告)日：2015-08-25
申请号：US12820312
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： H04N7/12 , H04N19/625 , G06F17/14 , H04N19/60
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 (η) 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比例因子（＆eegr）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。

7. 发明授权

US09075757B2 16-point transform for media data coding 有权
标题翻译：用于媒体数据编码的16点变换
公开(公告)号：US09075757B2
公开(公告)日：2015-07-07
申请号：US12820357
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： H04N7/12 , H04N11/02 , G06F17/14 , H04N19/176 , H04N19/122 , H04N19/42 , H04N19/625 , H04N19/61
CPC分类号： G06F17/147 , H04N19/122 , H04N19/176 , H04N19/42 , H04N19/61 , H04N19/625
摘要： In general, techniques are described for implementing a 16-point discrete cosine transform (DCT) that is capable of applying multiple IDCT of different sizes. For example, an apparatus comprising a 16-point discrete cosine transform of type II (DCT-II) unit may implement the techniques of this disclosure. The 16-point DCT-II unit performs these DCTs-II of different sizes to transform data from a spatial to a frequency domain. The 16-point DCT-II unit includes an 8-point DCT-II unit that performs one of the DCTs-II of size 8 and a first 4-point DCT-II unit that performs one of the DCTs-II of size 4. The 8-point DCT-II unit includes the first 4-point DCT-II unit. The 16-point DCT-II unit also comprises an 8-point DCT-IV unit that includes a second 4-point DCT-II unit and a third 4-point DCT-II unit. Each of the second and third 4-point DCT-II units performs one of the DCTs-II of size 4.
摘要翻译：通常，描述了用于实现能够应用不同大小的多个IDCT的16点离散余弦变换（DCT）的技术。例如，包括II型（DCT-II）单元的16点离散余弦变换的装置可以实现本公开的技术。 16点DCT-II单元执行不同尺寸的DCT-II以将数据从空间变换到频域。 16点DCT-II单元包括执行尺寸为8的DCT-II之一的8点DCT-II单元和执行尺寸为4的DCT-II之一的第一个4点DCT-II单元。 8点DCT-II单元包括第一个4点DCT-II单元。 16点DCT-II单元还包括8点DCT-IV单元，其包括第二个4点DCT-II单元和第三个4点DCT-II单元。第二和第三4点DCT-II单元中的每一个执行大小为4的DCT-II之一。

8. 发明授权

US08451904B2 8-point transform for media data coding 失效
标题翻译：用于媒体数据编码的8点变换
公开(公告)号：US08451904B2
公开(公告)日：2013-05-28
申请号：US12820329
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： H04N7/12
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 (η) 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（mu）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缩放因子（eta）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。

9. 发明申请

US20120014455A1 Variable Localized Bit-Depth Increase for Fixed-Point Transforms in Video Coding 有权
标题翻译：视频编码中定点变换的可变局部位深增加
公开(公告)号：US20120014455A1
公开(公告)日：2012-01-19
申请号：US13159063
申请日：2011-06-13
申请人： Rajan L. Joshi , Wei-Jung Chien , Marta Karczewicz , Yuriy Reznik , Peisong Chen , Hsiao-Chiang Chuang
发明人： Rajan L. Joshi , Wei-Jung Chien , Marta Karczewicz , Yuriy Reznik , Peisong Chen , Hsiao-Chiang Chuang
IPC分类号： H04N7/30
CPC分类号： H04N19/42 , H04N19/122 , H04N19/157 , H04N19/176 , H04N19/184 , H04N19/196 , H04N19/46 , H04N19/60 , H04N19/61
摘要： This disclosure describes techniques for mitigating rounding errors in a fixed-point transform associated with video coding by applying a variable localized bit-depth increase at the transform. More specifically, the techniques include selecting a constant value based on a size of a fixed-point transform in a video coding device and applying a variable localized bit-depth increase at the transform with a value equal to the constant value. Applying the variable localized bit-depth increase includes left-shifting a transform input signal by a number of bits equal to the constant value before the fixed-point transform, and right-shifting a transform output signal by a number of bits equal to the constant value after the fixed-point transform. The constant value is selected from a plurality of constant values stored on the video coding device. Each of the constant values is pre-calculated for one of a plurality of different transform sizes supported by the video coding.
摘要翻译：本公开描述了通过在变换处应用可变局部位深增加来减轻与视频编码相关联的定点变换中的舍入误差的技术。更具体地，这些技术包括基于视频编码装置中的定点变换的大小来选择常数值，并且在变换时以等于常数值的值应用可变的局部位深增加。应用可变局部位置深度增加包括将变换输入信号左移到等于定点变换之前的常数值的位数，并且将变换输出信号右移到等于常数的位数定点变换后的值。从存储在视频编码装置上的多个常数值中选择常数值。对于由视频编码支持的多个不同的变换大小之一，预先计算每个常数值。

10. 发明申请

US20110150078A1 8-POINT TRANSFORM FOR MEDIA DATA CODING 失效
标题翻译：用于媒体数据编码的8点变换
公开(公告)号：US20110150078A1
公开(公告)日：2011-06-23
申请号：US12820329
申请日：2010-06-22
申请人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
发明人： Yuriy Reznik , Rajan L. Joshi , Marta Karczewicz
IPC分类号： H04N7/30
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 (η) 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缩放因子（＆eegr）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。

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