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1. 发明申请

US20100195735A1 APPARATUS AND METHOD FOR CONVERTING SIGNALS 审中-公开
标题翻译：用于转换信号的装置和方法
公开(公告)号：US20100195735A1
公开(公告)日：2010-08-05
申请号：US12754902
申请日：2010-04-06
申请人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
发明人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
IPC分类号： H04N11/02
CPC分类号： H04N5/4401 , H04N5/46 , H04N11/20 , H04N19/105 , H04N19/112 , H04N19/132 , H04N19/137 , H04N19/40 , H04N19/577 , H04N19/587 , H04N19/59 , H04N21/440218 , H04N21/440263 , H04N21/440281
摘要： An image-coding format converting apparatus comprising an EMPEG2 image decoder 30, a resolution/frame rate converter 31, a motion vector converter 32, and an MPEG4 encoder 33. The EMPEG2 decoder 30 decodes a bit stream of EMPEG2 image codes, generating an image signal. The resolution/frame rate converter 31 converts the image signal. The MPEG4 encoder 33 encodes the output of the resolution/frame rate converter 31, generating a bit stream of MPEG4 image codes. In the resolution/frame rate converter 31, pixels are added or extracted in accordance with the start position of a macro block, thus adjusting the input image signal to one than can easily be encoded to MPEG4 image codes. The motion vector converter 32 generates an MPEG4 motion vector from parameters such as an MPEG2 motion vector. The MPEG4 encoder 33 uses the MPEG4 motion vector to encode the output of the resolution/frame rate converter 31.
摘要翻译：包括EMPEG2图像解码器30，分辨率/帧速率转换器31，运动矢量转换器32和MPEG4编码器33的图像编码格式转换装置.EMPEG2解码器30解码EMPEG2图像码的比特流，产生图像信号。分辨率/帧速率转换器31转换图像信号。 MPEG4编码器33对分辨率/帧速率转换器31的输出进行编码，生成MPEG4图像代码的比特流。在分辨率/帧速率转换器31中，根据宏块的开始位置来添加或提取像素，从而将输入图像信号调整为可以容易地编码为MPEG4图像代码的输入图像信号。运动矢量转换器32从诸如MPEG2运动矢量的参数产生MPEG4运动矢量。 MPEG4编码器33使用MPEG4运动矢量对分辨率/帧速率转换器31的输出进行编码。

2. 发明授权

US07711050B2 Apparatus and method for converting signals 失效
标题翻译：用于转换信号的装置和方法
公开(公告)号：US07711050B2
公开(公告)日：2010-05-04
申请号：US11193244
申请日：2005-07-29
申请人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
发明人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
IPC分类号： H04N7/12 , H04N7/01
CPC分类号： H04N5/4401 , H04N5/46 , H04N11/20 , H04N19/105 , H04N19/112 , H04N19/132 , H04N19/137 , H04N19/40 , H04N19/577 , H04N19/587 , H04N19/59 , H04N21/440218 , H04N21/440263 , H04N21/440281
摘要： An image-coding format converting apparatus comprising an MPEG2 image decoder 30, a resolution/frame rate converter 31, a motion vector converter 32, and an MPEG4 encoder 33. The MPEG2 decoder 30 decodes a bit stream of MPEG2 image codes, generating an image signal. The resolution/frame rate converter 31 converts the image signal. The MPEG4 encoder 33 encodes the output of the resolution/frame rate converter 31, generating a bit stream of MPEG4 image codes. In the resolution/frame rate converter 31, pixels are added or extracted in accordance with the start position of a macro block, thus adjusting the input image signal to one than can easily be encoded to MPEG4 image codes. The motion vector converter 32 generates an MPEG4 motion vector from parameters such as an MPEG2 motion vector. The MPEG4 encoder 33 uses the MPEG4 motion vector to encode the output of the resolution/frame rate converter 31.
摘要翻译：一种包括MPEG2图像解码器30，分辨率/帧速率转换器31，运动矢量转换器32和MPEG4编码器33的图像编码格式转换装置.MMP2解码器30解码MPEG2图像代码的比特流，产生图像信号。分辨率/帧速率转换器31转换图像信号。 MPEG4编码器33对分辨率/帧速率转换器31的输出进行编码，生成MPEG4图像代码的比特流。在分辨率/帧速率转换器31中，根据宏块的开始位置来添加或提取像素，从而将输入图像信号调整为可以容易地编码为MPEG4图像代码的输入图像信号。运动矢量转换器32从诸如MPEG2运动矢量的参数产生MPEG4运动矢量。 MPEG4编码器33使用MPEG4运动矢量对分辨率/帧速率转换器31的输出进行编码。

3. 发明授权

US06983019B2 Apparatus and method for converting signals 失效
标题翻译：用于转换信号的装置和方法
公开(公告)号：US06983019B2
公开(公告)日：2006-01-03
申请号：US09791013
申请日：2001-02-22
申请人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
发明人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
IPC分类号： H04N7/12
CPC分类号： H04N5/4401 , H04N5/46 , H04N11/20 , H04N19/105 , H04N19/112 , H04N19/132 , H04N19/137 , H04N19/40 , H04N19/577 , H04N19/587 , H04N19/59 , H04N21/440218 , H04N21/440263 , H04N21/440281
摘要： An image-coding format converting apparatus comprising an EMPEG2 image decoder 30, a resolution/frame rate converter 31, a motion vector converter 32, and an MPEG4 encoder 33. The EMPEG2 decoder 30 decodes a bit stream of EMPEG2 image codes, generating an image signal. The resolution/frame rate converter 31 converts the image signal. The MPEG4 encoder 33 encodes the output of the resolution/frame rate converter 31, generating a bit stream of MPEG4 image codes. In the resolution/frame rate converter 31, pixels are added or extracted in accordance with the start position of a macro block, thus adjusting the input image signal to one than can easily be encoded to MPEG4 image codes. The motion vector converter 32 generates an MPEG4 motion vector from parameters such as an MPEG2 motion vector. The MPEG4 encoder 33 uses the MPEG4 motion vector to encode the output of the resolution/frame rate converter 31.
摘要翻译：包括EMPEG2图像解码器30，分辨率/帧速率转换器31，运动矢量转换器32和MPEG4编码器33的图像编码格式转换装置。 EMPEG2解码器30解码EMPEG2图像码的比特流，产生图像信号。分辨率/帧速率转换器31转换图像信号。 MPEG4编码器33对分辨率/帧速率转换器31的输出进行编码，生成MPEG4图像代码的比特流。在分辨率/帧速率转换器31中，根据宏块的开始位置来添加或提取像素，从而将输入图像信号调整为可以容易地编码为MPEG4图像代码的输入图像信号。运动矢量转换器32从诸如MPEG2运动矢量的参数产生MPEG4运动矢量。 MPEG4编码器33使用MPEG4运动矢量对分辨率/帧速率转换器31的输出进行编码。

4. 发明授权

US06970514B1 Signal processing device, signal processing method, decoding device, decoding method and recording medium 失效
标题翻译：信号处理装置，信号处理方法，解码装置，解码方法和记录介质
公开(公告)号：US06970514B1
公开(公告)日：2005-11-29
申请号：US09699209
申请日：2000-10-27
申请人： Takefumi Nagumo , Yoichi Yagasaki , Kuniaki Takahashi
发明人： Takefumi Nagumo , Yoichi Yagasaki , Kuniaki Takahashi
IPC分类号： H04N19/70 , H04J3/00 , H04J3/16 , H04N7/08 , H04N7/081 , H04N7/18 , H04N7/58 , H04N19/00
CPC分类号： H04N21/2365 , H04N7/181 , H04N21/4347
摘要： A device and a method for multiplexing a plurality of bit streams, a device and a method for decoding a multiplexed signal and a recording medium storing a program for multiplexing a plurality of bit streams are adapted to carry out a dividing step for dividing said second bit stream into predetermined units, an adding step for adding a start code to each of said units obtained by dividing said second bit stream and a multiplexing step for defining a user operable region in said first bit stream and multiplexing and recording at least part of said second bit stream on said user operable region. As a result, a picture signal can be decoded with minimal processing steps because a conventional coding system can be used without modification.
摘要翻译：适用于复用多个比特流的装置和方法，用于对多路复用信号进行解码的装置和方法以及存储用于多路复用多个比特流的程序的记录介质进行分割步骤，用于分割所述第二比特流入预定单元，添加步骤，用于将通过划分所述第二比特流获得的每个所述单元添加起始码和用于定义所述第一比特流中的用户可操作区域的复用步骤，并且复用和记录所述第二比特流的至少一部分所述用户可操作区域上的位流。结果，可以以最小的处理步骤来解码图像信号，因为可以使用常规的编码系统而无需修改。

5. 发明申请

US20050265457A1 Apparatus and method for converting signals 失效
标题翻译：用于转换信号的装置和方法
公开(公告)号：US20050265457A1
公开(公告)日：2005-12-01
申请号：US11193244
申请日：2005-07-29
申请人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
发明人： Zhu Yiwen , Yoichi Yagasaki , Takefumi Nagumo , Kuniaki Takahashi
IPC分类号： H04N19/50 , H03M7/00 , H04N5/46 , H04N5/92 , H04N7/46 , H04N11/20 , H04N19/105 , H04N19/137 , H04N19/176 , H04N19/40 , H04N19/42 , H04N19/51 , H04N19/513 , H04N19/59 , H04N19/80 , H04N19/91 , H04N7/12
CPC分类号： H04N5/4401 , H04N5/46 , H04N11/20 , H04N19/105 , H04N19/112 , H04N19/132 , H04N19/137 , H04N19/40 , H04N19/577 , H04N19/587 , H04N19/59 , H04N21/440218 , H04N21/440263 , H04N21/440281
摘要： An image-coding format converting apparatus comprising an EMPEG2 image decoder 30, a resolution/frame rate converter 31, a motion vector converter 32, and an MPEG4 encoder 33. The EMPEG2 decoder 30 decodes a bit stream of EMPEG2 image codes, generating an image signal. The resolution/frame rate converter 31 converts the image signal. The MPEG4 encoder 33 encodes the output of the resolution/frame rate converter 31, generating a bit stream of MPEG4 image codes. In the resolution/frame rate converter 31, pixels are added or extracted in accordance with the start position of a macro block, thus adjusting the input image signal to one than can easily be encoded to MPEG4 image codes. The motion vector converter 32 generates an MPEG4 motion vector from parameters such as an MPEG2 motion vector. The MPEG4 encoder 33 uses the MPEG4 motion vector to encode the output of the resolution/frame rate converter 31.
摘要翻译：包括EMPEG2图像解码器30，分辨率/帧速率转换器31，运动矢量转换器32和MPEG4编码器33的图像编码格式转换装置。 EMPEG2解码器30解码EMPEG2图像码的比特流，产生图像信号。分辨率/帧速率转换器31转换图像信号。 MPEG4编码器33对分辨率/帧速率转换器31的输出进行编码，生成MPEG4图像代码的比特流。在分辨率/帧速率转换器31中，根据宏块的开始位置来添加或提取像素，从而将输入图像信号调整为可以容易地编码为MPEG4图像代码的输入图像信号。运动矢量转换器32从诸如MPEG2运动矢量的参数产生MPEG4运动矢量。 MPEG4编码器33使用MPEG4运动矢量对分辨率/帧速率转换器31的输出进行编码。

6. 发明申请

US20120287992A1 METHOD AND APPARATUS FOR CODING IMAGE INFORMATION, METHOD AND APPARATUS FOR DECODING IMAGE INFORMATION, METHOD AND APPARATUS FOR CODING AND DECODING IMAGE INFORMATION, AND SYSTEM OF CODING AND TRANSMITTING IMAGE INFORMATION 有权
标题翻译：用于编码图像信息的方法和装置，用于解码图像信息的方法和装置，用于编码和解码图像信息的方法和装置，以及编码和传输图像信息的系统
公开(公告)号：US20120287992A1
公开(公告)日：2012-11-15
申请号：US13559123
申请日：2012-07-26
申请人： Kazushi SATO , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
发明人： Kazushi SATO , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
IPC分类号： H04N7/12
CPC分类号： H04N19/124 , H04N7/26244 , H04N7/26335 , H04N7/26941 , H04N7/50 , H04N19/126 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/40 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/625
摘要： A multiplexing method for multiplexing a bit stream in a multiplexing apparatus. The method includes encoding, in an encoding unit in the multiplexing apparatus, a chroma component of image data using a chroma quantization parameter calculated on the basis of a luma quantization parameter weighted by an addition operation that adds a weight parameter and generating the bit stream. The method further includes multiplexing, in an multiplexing unit in the multiplexing apparatus, the bit stream and generating a system stream.
摘要翻译：一种用于复用多路复用装置中的比特流的复用方法。该方法包括：在多路复用装置的编码单元中，使用基于通过加权重参数加权的亮度量化参数计算的色度量化参数，生成比特流，对图像数据的色度分量进行编码。该方法还包括在多路复用装置中的复用单元中复用比特流并生成系统流。

7. 发明授权

US08144767B2 Method and apparatus for coding image information, method and apparatus for decoding image information, method and apparatus for coding and decoding image information, and system of coding and transmitting image information 有权
标题翻译：用于图像信息编码的方法和装置，用于对图像信息进行解码的方法和装置，用于对图像信息进行编码和解码的方法和装置，以及编码和发送图像信息的系统
公开(公告)号：US08144767B2
公开(公告)日：2012-03-27
申请号：US12620383
申请日：2009-11-17
申请人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
发明人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
IPC分类号： H04B1/66
CPC分类号： H04N19/124 , H04N7/26244 , H04N7/26335 , H04N7/26941 , H04N7/50 , H04N19/126 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/40 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/625
摘要： An image information decoding method for decoding compressed image information which has been coded via a process including dividing an input image signal into blocks, performing an orthogonal transform on the blocks on a block-by-block basis, and quantizing resultant orthogonal transform coefficients. The decoding process includes performing dequantization such that a quantization parameter is weighted by an addition operation, and the dequantization is performed on each chroma components of the quantized coefficients using said weighted quantization parameter, and performing an inverse orthogonal transform.
摘要翻译：一种图像信息解码方法，用于对通过包括将输入图像信号分割为块的处理进行了编码的压缩图像信息进行解码，对该块进行正交变换，并对所得到的正交变换系数进行量化。解码处理包括进行解量化，使得量化参数通过加法运算加权，并且使用所述加权量化参数对量化系数的每个色度分量执行去量化，并执行逆正交变换。

8. 发明授权

US07409098B2 Image processing apparatus and method for coding with complexity-based quantization 失效
标题翻译：用于基于复杂度量化的编码的图像处理装置和方法
公开(公告)号：US07409098B2
公开(公告)日：2008-08-05
申请号：US10733255
申请日：2003-12-12
申请人： Kazushi Sato , Osamu Sunohara , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
发明人： Kazushi Sato , Osamu Sunohara , Kuniaki Takahashi , Teruhiko Suzuki , Yoichi Yagasaki
IPC分类号： G06K9/00 , G06K9/36 , G06K9/38 , G06K9/46 , H04B1/66 , H04N1/00 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/42 , H04N19/115 , H04N19/126 , H04N19/14 , H04N19/149 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/61
摘要： An image processing apparatus is provided that can define the change amount of a quantizing parameter by suitably reflecting the complexity of image data in the case, when the quantizing parameter is increased a predetermined unit amount, the coarseness the image data of motion picture is quantized becomes r times. An activity computing circuit generates an activity Nactj serving as a complexity of the image data. A ΔQ computing circuit defines a corresponding relationship between activity Nactj and change amount data ΔQ such that the change amount data ΔQ of quantizing parameter increases 1 as the activity Nactj becomes 1.12 times, to thereby acquire change amount data ΔQ corresponding to the activity Nactj generated by the activity computing circuit.
摘要翻译：提供一种图像处理装置，其可以通过在量化参数增加预定单位量的情况下适当地反映图像数据的复杂度来定义量化参数的变化量，使运动图像的图像数据量化的粗糙度变为 r次。活动计算电路产生用作图像数据的复杂度的活动Nact。 DeltaQ计算电路定义活动Nact和改变量数据DeltaQ之间的对应关系，使得量化参数的变化量数据DeltaQ随着活动Nact 增加1，变为1.12 从而获取与由活动计算电路生成的活动Nact相关的变化量数据DeltaQ。

9. 发明申请

US20070286501A1 METHOD AND APPARATUS FOR CODING IMAGE INFORMATION, METHOD AND APPARATUS FOR DECODING IMAGE INFORMATION, METHOD AND APPARATUS FOR CODING AND DECODING IMAGE INFORMATION, AND SYSTEM OF CODING AND TRANSMITTING IMAGE INFORMATION 有权
标题翻译：用于编码图像信息的方法和装置，用于解码图像信息的方法和装置，用于编码和解码图像信息的方法和装置，以及编码和传输图像信息的系统
公开(公告)号：US20070286501A1
公开(公告)日：2007-12-13
申请号：US11836467
申请日：2007-08-09
申请人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
发明人： Kazushi Sato , Osamu Sunohara , Teruhiko Suzuki , Peter Kuhn , Yoichi Yagasaki , Kuniaki Takahashi
IPC分类号： G06K9/36
CPC分类号： H04N19/124 , H04N7/26244 , H04N7/26335 , H04N7/26941 , H04N7/50 , H04N19/126 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/40 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/625
摘要： An image information decoding method for decoding compressed image information which has been coded via a process including dividing an input image signal into blocks, performing an orthogonal transform on the blocks on a block-by-block basis, and quantizing resultant orthogonal transform coefficients. The decoding process includes performing dequantization such that a quantization parameter is weighted by an addition operation, and the dequantization is performed on each chroma components of the quantized coefficients using said weighted quantization parameter, and performing an inverse orthogonal transform.
摘要翻译：一种图像信息解码方法，用于对通过包括将输入图像信号分割为块的处理进行了编码的压缩图像信息进行解码，对该块进行正交变换，并对所得到的正交变换系数进行量化。解码处理包括进行解量化，使得量化参数通过加法运算加权，并且使用所述加权量化参数对量化系数的每个色度分量执行去量化，并执行逆正交变换。

10. 发明授权

US07116835B2 Image processing apparatus and method, recording medium, and program 失效
标题翻译：图像处理装置和方法，记录介质和程序
公开(公告)号：US07116835B2
公开(公告)日：2006-10-03
申请号：US10196259
申请日：2002-07-17
申请人： Kuniaki Takahashi , Kazushi Sato , Yoichi Yagasaki
发明人： Kuniaki Takahashi , Kazushi Sato , Yoichi Yagasaki
IPC分类号： G06K9/36 , G06K9/46 , H04N7/12
CPC分类号： H04N19/59 , H04N19/124 , H04N19/132 , H04N19/15 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/40 , H04N19/523 , H04N19/56 , H04N19/61
摘要： A normalized activity calculating unit calculates a normalized activity that is calculated from luminescence component pixel values of an original image on the basis of information from an information buffer, such as bit rate, an amount of bits generated in each frame, and an amount of bits generated and a quantization step size in each macroblock. The normalized activity calculating unit then outputs the normalized activity to a code amount control unit. The code amount control unit calculates a quantization scale code corresponding to a target bit rate, which quantization scale code matches visual characteristics, using the normalized activity inputted from the normalized activity calculating unit, and then outputs the quantization scale code to a quantizing unit. The quantizing unit quantizes discrete cosine transform coefficients inputted from a band limiting unit on the basis of the quantization scale code inputted to the quantizing unit.
摘要翻译：归一化活动计算单元基于来自信息缓冲器的信息，例如比特率，每帧中生成的位数和位数来计算从原始图像的发光分量像素值计算的归一化活动度生成和每个宏块中的量化步长。归一化活动计算单元然后将归一化活动输出到码量控制单元。代码量控制单元使用从归一化活动性计算单元输入的归一化活动来计算与目标比特率相对应的量化尺度代码与量化尺度代码匹配视觉特性的量化尺度代码，然后将量化尺度代码输出到量化单元。量化单元基于输入到量化单元的量化比例代码量化从频带限制单元输入的离散余弦变换系数。

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