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1. 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。

2. 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。

3. 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。

4. 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。

5. 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。

6. 发明授权

US06608935B2 Picture encoding method and apparatus, picture decoding method and apparatus and furnishing medium 失效
标题翻译：图像编码方法及装置，图像解码方法及装置及家具介质
公开(公告)号：US06608935B2
公开(公告)日：2003-08-19
申请号：US09339690
申请日：1999-06-24
申请人： Takefumi Nagumo , Teruhiko Suzuki , Yoichi Yagasaki
发明人： Takefumi Nagumo , Teruhiko Suzuki , Yoichi Yagasaki
IPC分类号： G06K946
CPC分类号： H04N19/00 , G06T9/20 , H04N19/20 , H04N19/46 , H04N19/563 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70
摘要： The MPEG4 is expanded to permit the use of the 4:2:2 format and the 4:4:4 format. To this end, there is provided an encoder adapted for encoding a picture in terms of a macro-block made up of a block of luminance Y and a block of chrominance Cr, Cb. The encoder includes a VOP encoding unit 3 for encoding the picture as reading of a flag (cbpc) specifying the state of encoding of the chrominance block and a flag (cbpcb, cbpcr) specifying the state of encoding of the chrominance block associated with the types of the chrominance Cb, Cr is adaptively changed responsive to a flag (chroma_type) representing the chrominance format of the picture and to the flag (cbpc) specifying the state of encoding of the chrominance block.
摘要翻译： MPEG4扩展为允许使用4：2：2格式和4：4：4格式。为此，提供了一种编码器，其适于根据由亮度块Y和色度块Cr，Cb组成的宏块来编码图像。编码器包括用于将图像编码为指定色度块的编码状态的标志（cbpc）的读取的VOP编码单元3和指定与类型相关联的色度块的编码状态的标志（cbpcb，cbpcr）的色度Cb，Cr响应于表示图像的色度格式的标志（chroma_type）和指定色度块的编码状态的标志（cbpc）自适应地改变。

7. 发明申请

US20070003149A1 Image decoding device and image decoding method 有权
标题翻译：图像解码装置和图像解码方法
公开(公告)号：US20070003149A1
公开(公告)日：2007-01-04
申请号：US10553960
申请日：2004-04-19
申请人： Takefumi Nagumo , Yoichi Yagasaki , Teruhiko Suzuki
发明人： Takefumi Nagumo , Yoichi Yagasaki , Teruhiko Suzuki
IPC分类号： G06K9/36
CPC分类号： H04N5/783 , H04N9/8042 , H04N19/132 , H04N19/44 , H04N19/587
摘要： This invention realizes an image decoding apparatus and an image decoding method capable of correctly performing a decoding process in short time with a simple construction. In an image decoding apparatus and an image decoding method for performing a decoding process under a prescribed coding method, simple playback frames comprising an I-picture and following prescribed pieces of P-pictures on the basis of the I-picture existing at a desired position in picture data encoded with the coding method are extracted in a fast playback mode.
摘要翻译：本发明实现了能够以简单的结构在短时间内正确地执行解码处理的图像解码装置和图像解码方法。在用于以规定的编码方式执行解码处理的图像解码装置和图像解码方法中，基于存在于期望位置的I图像，包括I图像和以下规定的P图像的简单重放帧以快速重放模式提取用编码方法编码的图像数据。

8. 发明授权

US08705627B2 Image processing apparatus and method 有权
标题翻译：图像处理装置及方法
公开(公告)号：US08705627B2
公开(公告)日：2014-04-22
申请号：US13054648
申请日：2009-07-24
申请人： Ohji Nakagami , Junichi Tanaka , Takefumi Nagumo , Yoichi Yagasaki
发明人： Ohji Nakagami , Junichi Tanaka , Takefumi Nagumo , Yoichi Yagasaki
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N7/26 , H04N7/36 , H04N7/50
CPC分类号： H04N7/26 , H04N19/00 , H04N19/109 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/573 , H04N19/615
摘要： The present invention relates to an image processing apparatus and method that allow the generation of a high-accuracy prediction image without increasing the processing load.A difference image between motion compensation images MC0 and MC1 extracted from different reference frames is calculated. A low-pass filter is applied to the difference image, and the gain of an obtained image is adjusted. A high-pass filter is applied to an image obtained by the application of a low-pass filter, and the gain of an obtained image is adjusted. An image obtained by adding the output of a gain adjustment circuit 53 and the output of a gain adjustment circuit 55 is added with the motion compensation image MC0, and a prediction image is generated. The present invention can be applied to an apparatus that performs prediction encoding, and an apparatus that decodes information encoded through prediction encoding.
摘要翻译：本发明涉及一种允许生成高精度预测图像而不增加处理负荷的图像处理装置和方法。计算从不同参考帧提取的运动补偿图像MC0和MC1之间的差分图像。对差分图像应用低通滤波器，并且调整所获得的图像的增益。将高通滤波器应用于通过应用低通滤波器获得的图像，并且调整所获得的图像的增益。通过将增益调整电路53的输出和增益调整电路55的输出相加而获得的图像与运动补偿图像MC0相加，生成预测图像。本发明可以应用于执行预测编码的装置，以及对通过预测编码编码的信息进行解码的装置。

9. 发明授权

US06400768B1 Picture encoding apparatus, picture encoding method, picture decoding apparatus, picture decoding method and presentation medium 失效
标题翻译：图像编码装置，图像编码方法，图像解码装置，图像解码方法和显示介质
公开(公告)号：US06400768B1
公开(公告)日：2002-06-04
申请号：US09334853
申请日：1999-06-17
申请人： Takefumi Nagumo , Teruhiko Suzuki , Yoichi Yagasaki
发明人： Takefumi Nagumo , Teruhiko Suzuki , Yoichi Yagasaki
IPC分类号： H04N141
CPC分类号： H04N19/31 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/146 , H04N19/152 , H04N19/17 , H04N19/172 , H04N19/187 , H04N19/20 , H04N19/29 , H04N19/30 , H04N19/33 , H04N19/42 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/91
摘要： A picture encoding apparatus, a picture encoding method, a picture decoding method and a presentation medium capable of making efficient random accesses at a high speed. The picture encoding apparatus for encoding a picture and outputting an encoded bitstream obtained as a result of encoding said picture comprises a hierarchy forming means for converting a sequence of objects composing said picture into a hierarchy comprising two or more hierarchical layers, a first encoding means for encoding a first hierarchical layer of said sequence of objects output by said hierarchy forming means by dividing said first hierarchical layer into a plurality of groups, and a second encoding means for encoding a second hierarchical layer of said sequence of objects output by said hierarchy forming means by dividing said second hierarchical layer into a plurality of groups in such a way that an object at said second hierarchical layer to be displayed at a time coinciding with or immediately after a display time of an object first displayed in a group pertaining to said first hierarchical layer is first displayed in a group pertaining to said second hierarchical layer.
摘要翻译：一种图像编码装置，图像编码方法，图像解码方法以及能够高效地进行有效随机存取的显示介质。用于对图像进行编码并输出作为编码所述图像的结果的编码比特流的图像编码装置包括：层次形成装置，用于将构成所述图像的对象序列转换成包括两层或更多层次的层次;第一编码装置，通过将所述第一层划分为多个组来对由所述层次形成装置输出的所述对象序列的第一层次进行编码;以及第二编码装置，用于对由所述层级形成装置输出的所述对象序列的第二层进行编码通过将所述第二层次划分成多个组，使得在与所述第一层次有关的组中首先显示的对象的显示时间一致或紧接在之后显示所述第二层的对象层首先显示在属于所述第二层的组中。

10. 发明申请

US20110122953A1 IMAGE PROCESSING APPARATUS AND METHOD 有权
标题翻译：图像处理装置和方法
公开(公告)号：US20110122953A1
公开(公告)日：2011-05-26
申请号：US13054648
申请日：2009-07-24
申请人： Ohji Nakagami , Junichi Tanaka , Takefumi Nagumo , Yoichi Yagasaki
发明人： Ohji Nakagami , Junichi Tanaka , Takefumi Nagumo , Yoichi Yagasaki
IPC分类号： H04N7/26
CPC分类号： H04N7/26 , H04N19/00 , H04N19/109 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/573 , H04N19/615
摘要： The present invention relates to an image processing apparatus and method that allow the generation of a high-accuracy prediction image without increasing the processing load.A difference image between motion compensation images MC0 and MC1 extracted from different reference frames is calculated. A low-pass filter is applied to the difference image, and the gain of an obtained image is adjusted. A high-pass filter is applied to an image obtained by the application of a low-pass filter, and the gain of an obtained image is adjusted. An image obtained by adding the output of a gain adjustment circuit 53 and the output of a gain adjustment circuit 55 is added with the motion compensation image MC0, and a prediction image is generated. The present invention can be applied to an apparatus that performs prediction encoding, and an apparatus that decodes information encoded through prediction encoding.
摘要翻译：本发明涉及一种允许生成高精度预测图像而不增加处理负荷的图像处理装置和方法。计算从不同参考帧提取的运动补偿图像MC0和MC1之间的差分图像。对差分图像应用低通滤波器，并且调整所获得的图像的增益。将高通滤波器应用于通过应用低通滤波器获得的图像，并且调整所获得的图像的增益。通过将增益调整电路53的输出和增益调整电路55的输出相加而获得的图像与运动补偿图像MC0相加，生成预测图像。本发明可以应用于执行预测编码的装置，以及对通过预测编码编码的信息进行解码的装置。

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