公开(公告)号：US07325200B2

公开(公告)日：2008-01-29

申请号：US11098668

申请日：2005-04-04

申请人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

发明人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

IPC分类号： G06F3/00 ,  G06F13/00

CPC分类号： H04N7/17318 ,  G06F17/30905 ,  H04N21/234318 ,  H04N21/25833 ,  H04N21/6547

摘要： A user interface system comprises a server having a scene description converting device for converting scene description containing input user interaction into converted scene description while leaving parts containing the user interaction and a scene description decoding device for decoding converted scene description into decoded scene description, a remote terminal having a scene description decoding device for decoding scene description and converted scene description sent from the server and a display device for displaying decoded scenes and a user input device for receiving user input according to this display, and a display terminal for displaying decoded scenes sent from the server. Thus, decoding can be enabled at terminals having inferior decoding capabilities and display capabilities.

公开(公告)号：US07269839B2

公开(公告)日：2007-09-11

申请号：US09876990

申请日：2001-06-11

申请人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

发明人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

IPC分类号： H04N5/95 ,  H04N7/173

CPC分类号： H04N21/23424 ,  H04N21/23406 ,  H04N21/238 ,  H04N21/2387 ,  H04N21/6332 ,  H04N21/654

摘要： A special playback controller receives a special playback request from a user. A data storage unit stores data. In response to the special playback request received by the special playback controller, a data converter converts the data stored in the data storage unit into special playback data according to the type of special playback operation. The special playback data converted by the data converter is transmitted to a decoding terminal via a multiplexer, a transmitter, and a communication line, thereby enabling the decoding terminal to perform the special playback operation.

摘要翻译： 专用播放控制器从用户接收特殊播放请求。 数据存储单元存储数据。 响应于由特殊播放控制器接收的特殊重放请求，数据转换器根据特殊重放操作的类型将存储在数据存储单元中的数据转换成特殊重放数据。 由数据转换器转换的特殊重放数据通过多路复用器，发送器和通信线路发送到解码终端，从而使解码终端能够执行特殊重放操作。

公开(公告)号：US20060198438A1

公开(公告)日：2006-09-07

申请号：US11419080

申请日：2006-05-18

申请人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

发明人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

IPC分类号： H04N11/04 ,  H04N11/02 ,  H04N7/12 ,  H04B1/66

CPC分类号： H04N21/23412 ,  H04N19/25 ,  H04N19/29 ,  H04N21/234318 ,  H04N21/2402 ,  H04N21/25833 ,  H04N21/2662 ,  H04N21/44012 ,  H04N21/47205 ,  H04N21/6587 ,  H04N21/8453

摘要： A user interface system includes a server which includes a scene description converter for converting an input scene description into scene description data having a hierarchical structure, based on an identifier that indicates a division unit for dividing the input scene description, in accordance with hierarchical information. A scene description delivering unit delivers the scene description having the hierarchical structure to a decoding terminal through a transmission medium/recording medium. A scene description storage device stores the scene description.

摘要翻译： 用户接口系统包括：服务器，其包括：场景描述转换器，用于根据分层信息，基于指示用于划分输入场景描述的分割单元的标识符，将输入场景描述转换为具有分层结构的场景描述数据。 场景描述传送单元通过传输介质/记录介质将具有分层结构的场景描述传送给解码终端。 场景描述存储装置存储场景描述。

公开(公告)号：US07088775B2

公开(公告)日：2006-08-08

申请号：US09765852

申请日：2001-01-19

申请人： Kazushi Sato ,  Kuniaki Takahashi ,  Zhu Yiwen ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Kuniaki Takahashi ,  Zhu Yiwen ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： H04B1/66

CPC分类号： H04N5/4401 ,  H04N7/012 ,  H04N19/132 ,  H04N19/20 ,  H04N19/40 ,  H04N19/577 ,  H04N19/587 ,  H04N21/440218 ,  H04N21/440281

摘要： An image data converting apparatus comprising an MPEG2-image data decoding section 19, a scan-converting section 20, an MPEG4-image encoding section 21, and a picture-type determining section 18. The MPEG2-image data decoding section 19 decodes input MPEG2-image compressed data in both the vertical direction and the horizontal direction by using only lower, fourth-order coefficients. The scan-converting section 20 converts interlaced-scan pixel data to sequential-scan pixel data. The MPEG4-image encoding section 21 generates MPEG4-image compressed data from the sequential-scan pixel signals. The sections 19, 20 and 21 are connected in series. The picture-type determining section 18 is connected to the input of the MPEG2-image data decoding section 19. The section 18 determines the picture type of each frame data contained in the interlaced-scan MPEG4-picture compressed data, outputs only the frame data about I/P pictures, discards the frame data about B pictures, thereby converting the frame rate.

公开(公告)号：US07031317B2

公开(公告)日：2006-04-18

申请号：US09931923

申请日：2001-08-20

申请人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

发明人： Shinji Negishi ,  Hideki Koyanagi ,  Yoichi Yagasaki

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L65/607 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/80 ,  H04L67/02 ,  H04L67/08 ,  H04L69/329 ,  H04N21/23412 ,  H04N21/234318 ,  H04N21/234327 ,  H04N21/2402 ,  H04N21/26216 ,  H04N21/2662 ,  H04N21/4312 ,  H04N21/4314 ,  H04N21/44012 ,  H04N21/6373 ,  H04N21/64769

摘要： A transmission system is a data delivery system which includes a server for transmitting ES data and a receiving terminal for receiving the transmitted data. The server includes a conversion controller for determining elementary streams (ES's) and a scene description to be transmitted based on transmission priority levels and display priority levels, in accordance with the state of a transmission path and/or a request from the receiving terminal. The server also includes an ES processor and a scene description processor.

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。

公开(公告)号：US20050249289A1

公开(公告)日：2005-11-10

申请号：US10524214

申请日：2003-10-09

申请人： Yoichi Yagasaki ,  Osamu Sunuhara ,  Jun Murayama

发明人： Yoichi Yagasaki ,  Osamu Sunuhara ,  Jun Murayama

IPC分类号： H04N5/92 ,  G06T9/00 ,  H03M7/40 ,  H04N19/00 ,  H04N19/102 ,  H04N19/12 ,  H04N19/126 ,  H04N19/13 ,  H04N19/146 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/467 ,  H04N19/503 ,  H04N19/51 ,  H04N19/61 ,  H04N19/625 ,  H04N19/67 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96 ,  H04N7/12

CPC分类号： H04N19/12 ,  H04N19/00569 ,  H04N19/13 ,  H04N19/156 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50

摘要： A video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. By limiting the amount of data to be input into/output from a CABAC encoding unit and decoding unit on a unit-of-encoding basis, such as one picture, slice, macroblock or block, and by encoding uncompressed video data, it is possible to provide a video-information encoding apparatus and decoding apparatus with a guarantee of a fixed processing time. Thereby, an apparatus with a guarantee of the processing time can be mounted.

摘要翻译： 一种具有固定处理时间保证的视频信息编码装置和解码装置。 通过将基于单位编码的CABAC编码单元和解码单元（例如一个图像，片，宏块或块）和通过编码未压缩的视频数据来限制输入/输出的数据量， 提供具有固定处理时间的保证的视频信息编码装置和解码装置。 因此，可以安装具有处理时间保证的装置。

公开(公告)号：US06950468B2

公开(公告)日：2005-09-27

申请号：US09986436

申请日：2001-11-08

申请人： Kazushi Satoh ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Kazushi Satoh ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： H04N19/00 ,  H04N19/102 ,  H04N19/126 ,  H04N19/134 ,  H04N19/136 ,  H04N19/146 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/19 ,  H04N19/196 ,  H04N19/40 ,  H04N19/85 ,  H04N7/12

CPC分类号： H04N19/40 ,  H04N19/105 ,  H04N19/115 ,  H04N19/126 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/15 ,  H04N19/172 ,  H04N19/196 ,  H04N19/197 ,  H04N19/20 ,  H04N19/61 ,  H04N19/87

摘要： The invention provides an image information conversion apparatus and method by which picture quality deterioration caused by setting of an initial value can be prevented when code amount control in MPEG4 image coding is performed based on information extracted from MPEG2 image compression information. An initial reference quantization scale determination section determines an initial value for a reference quantization scale from predetermined MPEG2 image compression information, the number of macro blocks to be included in an MPEG4 bit stream, a code amount allocated to the first I picture of the MPEG2 image compression information stored in an information buffer, an average quantization scale and a target code amount for the first I-VOP of the MPEG4 bit stream calculated by an MPEG4 image information coding section, and then calculates an initial value for a virtual buffer occupation amount based on the determined initial value for the reference quantization scale.

摘要翻译： 本发明提供了一种图像信息转换装置和方法，在MPEG4图像编码中的代码量控制基于从MPEG2图像压缩信息中提取的信息进行时，可以防止由初始值的设置引起的图像质量恶化。 初始参考量化尺度确定部分从预定的MPEG2图像压缩信息，要包括在MPEG4比特流中的宏块的数量，分配给MPEG2图像的第一I图像的代码量确定用于参考量化尺度的初始值 存储在信息缓冲器中的压缩信息，由MPEG4图像信息编码部分计算的MPEG4比特流的第一I-VOP的平均量化尺度和目标代码量，然后计算基于虚拟缓冲器占用量的初始值 对于参考量化比例的确定的初始值。

公开(公告)号：US20050190840A1

公开(公告)日：2005-09-01

申请号：US11113295

申请日：2005-04-25

申请人： Kazushi Sato ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N19/103 ,  H04N19/134 ,  H04N19/136 ,  H04N19/142 ,  H04N19/146 ,  H04N19/172 ,  H04N19/186 ,  H04N19/19 ,  H04N19/196 ,  H04N19/20 ,  H04N19/40 ,  H04N19/423 ,  H04N19/51 ,  H04N19/59 ,  H04N19/60 ,  H04N19/625 ,  H04N19/85 ,  H04N19/91 ,  H04N7/12

CPC分类号： H04N19/40 ,  H04N19/115 ,  H04N19/126 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/159 ,  H04N19/172 ,  H04N19/196 ,  H04N19/20 ,  H04N19/463 ,  H04N19/51 ,  H04N19/61

摘要： The invention provides an image information conversion apparatus and method by which picture quality deterioration caused by conversion from inputted MPEG2 image compression information into MPEG4 image compression information to be outputted is prevented. When an I picture of an MPEG2 bit stream is to be converted into a P-VOP of an MPEG4 bit stream based on an estimated value of the complexity for each VOP, a scene change detection section detects whether or not the I picture includes a scene change. If a scene change is detected by the scene change detection section, then a GOV structure determination section determines that conversion of the I picture of the MPEG2 bit stream into a P-VOP of an MPEG4 bit stream should not be performed.

公开(公告)号：US06888889B2

公开(公告)日：2005-05-03

申请号：US09986435

申请日：2001-11-08

申请人： Kazushi Sato ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

发明人： Kazushi Sato ,  Kuniaki Takahashi ,  Teruhiko Suzuki ,  Yoichi Yagasaki

IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N19/103 ,  H04N19/134 ,  H04N19/136 ,  H04N19/142 ,  H04N19/146 ,  H04N19/172 ,  H04N19/186 ,  H04N19/19 ,  H04N19/196 ,  H04N19/20 ,  H04N19/40 ,  H04N19/423 ,  H04N19/51 ,  H04N19/59 ,  H04N19/60 ,  H04N19/625 ,  H04N19/85 ,  H04N19/91 ,  H04B1/66 ,  H04N7/12

CPC分类号： H04N19/40 ,  H04N19/115 ,  H04N19/126 ,  H04N19/139 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/159 ,  H04N19/172 ,  H04N19/196 ,  H04N19/20 ,  H04N19/463 ,  H04N19/51 ,  H04N19/61

摘要： The system provides an image information conversion apparatus and method by which picture quality deterioration caused by conversion from inputted MPEG2 image compression information into MPEG4 image compression information to be outputted is prevented. When an I picture of an MPEG2 bit stream is to be converted into a P-VOP of an MPEG4 bit stream based on an estimated value of the complexity for each VOP, a scene change detection section detects whether or not the I picture includes a scene change. If a scene change is detected by the scene change detection section, then a GOV structure determination section determines that conversion of the I picture of the MPEG2 bit stream into a P-VOP of an MPEG4 bit stream should not be performed.

摘要翻译： 该系统提供了一种图像信息转换装置和方法，通过该图像信息转换装置和方法防止了从输入的MPEG2图像压缩信息转换成要输出的MPEG4图像压缩信息引起的图像质量恶化。 当基于每个VOP的复杂度的估计值将MPEG2比特流的I图像转换为MPEG4比特流的P-VOP时，场景改变检测部分检测I图像是否包括场景 更改。 如果场景变化检测部检测到场景变化，则GOV构造判定部判定为不进行MPEG2比特流的P图像的MPEG图像的MPEG图像的转换。