公开(公告)号：EP2129133A2

公开(公告)日：2009-12-02

申请号：EP09075265.0

申请日：1996-08-29

申请人： Sharp Kabushiki Kaisha

发明人： Hibi, Keiichi ,  Ema, Nobuyuki

IPC分类号： H04N7/26 ,  G06T9/00

CPC分类号： G06T9/008 ,  H04N19/109 ,  H04N19/46 ,  H04N19/51 ,  H04N19/517 ,  H04N19/52 ,  H04N19/537 ,  H04N19/54 ,  H04N19/56

摘要： A video coding device is disclosed for encoding a video frame by using a plurality of motion-compensated interframe-prediction methods. The device comprises a motion vector searching means (331) for searching motion vectors of a video frame; a prediction means (332) for producing predicted images corresponding to the motion vector and the plurality of the prediction methods for an area that is obtained by dividing the video frame into a plurality of areas; an area prediction deciding means for selecting one prediction method out of the plurality of prediction methods and outputting the predicted image and side-information which indicates the selected prediction method and the motion vector; and a side-information coding means for encoding the side-information, wherein the side-information coding means reduces an amount of the side-information required for the motion vectors of the coding area by utilizing motion vectors of an area neighboring the coding area, when a prediction method for the coding area is decided to be different from the prediction method for the neighboring area.
A corresponding video decoding device is also disclosed.

摘要翻译： 公开了一种通过使用多个运动补偿帧间预测方法对视频帧进行编码的视频编码装置。 该装置包括用于搜索视频帧的运动矢量的运动矢量搜索装置（331） 用于产生对应于运动矢量的预测图像的预测装置和用于通过将视频帧分割成多个区域而获得的区域的多个预测方法; 区域预测决定装置，用于从多种预测方法中选择一种预测方法，并输出表示所选择的预测方法和运动矢量的预测图像和侧面信息; 以及侧信息编码装置，用于对侧信息进行编码，其中侧信息编码装置通过利用与编码区相邻的区域的运动矢量来减少编码区的运动矢量所需的侧信息量， 当决定与编码区域的预测方法不同于相邻区域的预测方法时。 还公开了相应的视频解码装置。

公开(公告)号：EP1274253A3

公开(公告)日：2005-10-12

申请号：EP02021632.1

申请日：1996-08-29

申请人： SHARP KABUSHIKI KAISHA

发明人： Hibi, Keiichi ,  Ema, Nobuyuki

IPC分类号： H04N7/26

CPC分类号： G06T9/008 ,  H04N19/109 ,  H04N19/46 ,  H04N19/51 ,  H04N19/517 ,  H04N19/52 ,  H04N19/537 ,  H04N19/54 ,  H04N19/56

摘要： A video coding device is disclosed for encoding a video frame by using a plurality of motion-compensated interframe-prediction methods. The device comprises a motion vector searching means (331) for searching motion vectors of a video frame; a prediction means (332) for dividing the video frame into one or more areas and producing a plurality of predicted images for each of the respective divided areas by applying the motion vectors and the plurality of the prediction methods; an area prediction deciding means (333) for determining the most adaptive one of the plurality of the prediction methods for each of the divided areas according to coding efficiencies of the produced predictive images and outputting side-information indicating the decided prediction methods and the motion vectors and the predicted image; and a side-information coding means (334) for encoding the side-information, said means capable of coding the side-information for indicating motion vectors of an objective codable area by utilizing motion vectors of one or more neighboring areas decided to be encoded by a prediction method which is different from the prediction method decided for said objective codable area.
A corresponding video decoding device is also disclosed.

摘要翻译： 公开了一种通过使用多个运动补偿帧间预测方法对视频帧进行编码的视频编码装置。 该装置包括用于搜索视频帧的运动矢量的运动矢量搜索装置（331） 用于通过应用所述运动矢量和所述多种预测方法，将所述视频帧分割为一个或多个区域并为每个所述分割区域产生多个预测图像的预测装置（332） 区域预测决定装置，用于根据所产生的预测图像的编码效率，确定针对每个分割区域的多个预测方法中最适合的一个预测方法，并输出指示所确定的预测方法和运动矢量的侧面信息 和预测图像; 以及用于对侧信息进行编码的侧信息编码装置（334），所述装置能够通过利用一个或多个相邻区域的运动矢量来编码用于指示目标可编码区域的运动矢量的侧信息， 预测方法与对所述目标可编程区域确定的预测方法不同。 还公开了相应的视频解码装置。

公开(公告)号：EP0762773B1

公开(公告)日：2002-10-16

申请号：EP96306321.9

申请日：1996-08-30

申请人： SHARP KABUSHIKI KAISHA

发明人： Sato, Seiji ,  Ema, Nobuyuki ,  Hibi, Keiichi

IPC分类号： H04N7/26

CPC分类号： H04N19/577 ,  H04N19/61 ,  H04N19/63

公开(公告)号：EP0873016A2

公开(公告)日：1998-10-21

申请号：EP98106757.2

申请日：1998-04-14

申请人： SHARP KABUSHIKI KAISHA

发明人： Hibi, Keiichi ,  Sato, Seiji

IPC分类号： H04N7/30

CPC分类号： H04N19/89 ,  H04N19/102 ,  H04N19/61 ,  H04N19/63

摘要： A video-coding device and a video-decoding device, which are capable of assuring the necessary quality of a video sequence even if a transmission error and/or a loss of information occurs in a transmission line and preventing the propagation of decoding error to subsequent images, and can effectively retransmit the necessary coded information when a transmission error and/or a loss of information occurs in a transmission line. A motion-compensated interframe-predicting portion (301) predicts an input image by using a preceding decoded image stored in a frame memory portion (302) and outputs motion vectors. A difference calculating portion (303) determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion (304) which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions (305a to 305n). A loop-back control portion (307) decides whether each of the coded frequency-band-components of the coded prediction-error signal from respective coding portions is input to a synthesizing portion (309) and outputs a decoded prediction-error signal. The predicted image signal and the decoded prediction-error signal are combined to generate a decoded image signal corresponding to the input image. The decoded image signal is used for prediction of a subsequent input image. A motion-compensated interframe-predicting portion (901) predicts an input image by using a preceding decoded image stored in a frame memory portion (902) and outputs motion vectors. A difference calculating portion (903) determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion (904) which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions (905a to 905n) for quantizing and encoding the respective components. Buffer portions (906a to 906n) store the coded information and output the information to an external circuit. The buffers output respective frequency-band-components of the coded information according to retransmission request signals from a retransmission control portion (910).

摘要翻译： 视频编码装置和视频解码装置，即使在传输线中发生传输错误和/或信息丢失也能够确保视频序列的必要质量，并且防止解码错误传播到随后的 图像，并且可以在传输线中发生传输错误和/或信息丢失时有效地重传必要的编码信息。 运动补偿帧间预测部（301）通过使用存储在帧存储器部（302）中的先前解码图像来预测输入图像，并输出运动矢量。 差分计算部分（303）确定输入图像信号和预测图像信号之间的差异，并将该差值作为预测误差信号输出到频带分割部分（304），频带分割部分又将预测误差信号划分为n 分层的频带分量并将其输出到相应的编码部分（305a至305n）。 环回控制部（307）判定来自各编码部的编码预测误差信号的编码频带分量中的每一个是否输入到合成部（309），并输出解码预测误差信号。 预测图像信号和解码预测误差信号被组合以产生对应于输入图像的解码图像信号。 解码图像信号用于对后续输入图像的预测。 运动补偿帧间预测部（901）通过使用存储在帧存储部（902）中的先前解码图像来预测输入图像，并输出运动矢量。 差分计算部分（903）确定输入图像信号和预测图像信号之间的差异，并将该差值作为预测误差信号输出到频带分割部分（904），分频部分又将预测误差信号划分为n 分层的频带分量并将其输出到各个编码部分（905a至905n），以对各个分量进行量化和编码。 缓冲部分（906a至906n）存储编码信息并将信息输出到外部电路。 缓冲器根据来自重传控制部分（910）的重传请求信号输出编码信息的各频带分量。

公开(公告)号：EP2144389A3

公开(公告)日：2010-08-18

申请号：EP09011168.3

申请日：2008-01-09

申请人： Sharp Kabushiki Kaisha

发明人： Yamada, Shohei ,  Nakashima, Daiichiro ,  Hibi, Keiichi

IPC分类号： H04W16/00 ,  H04L1/00

CPC分类号： H04W72/0406 ,  H04L1/003 ,  H04L1/0057 ,  H04L1/0079 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0094 ,  H04L25/0228 ,  H04L27/0008 ,  H04L27/0012

摘要： In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.

公开(公告)号：EP2134021A3

公开(公告)日：2010-08-18

申请号：EP09011169.1

申请日：2008-01-09

申请人： Sharp Kabushiki Kaisha

发明人： Yamada, Shohei ,  Nakashima, Daiichiro ,  Hibi, Keiichi

IPC分类号： H04W16/00 ,  H04L1/00

CPC分类号： H04W72/0406 ,  H04L1/003 ,  H04L1/0057 ,  H04L1/0079 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0094 ,  H04L25/0228 ,  H04L27/0008 ,  H04L27/0012

摘要： In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.

摘要翻译： 在以频率分量和时间分量构成的资源块为单位分配资源的无线系统中，对于移动台装置的控制信息和用于识别发送控制信息的控制信息传输信道的格式的识别信息 通过控制信息传输信道从基站装置传输到移动站装置。

公开(公告)号：EP1599047A8

公开(公告)日：2006-01-11

申请号：EP05017431.7

申请日：1998-04-14

申请人： SHARP KABUSHIKI KAISHA

发明人： Hibi, Keiichi ,  Sato, Seiji

IPC分类号： H04N7/26

CPC分类号： H04N19/89 ,  H04N19/102 ,  H04N19/61 ,  H04N19/63

摘要： A video-coding device and a video-decoding device, which are capable of assuring the necessary quality of a video sequence even if a transmission error and/or a loss of information occurs in a transmission line and preventing the propagation of decoding error to subsequent images, and can effectively retransmit the necessary coded information when a transmission error and/or a loss of information occurs in a transmission line. A motion-compensated interframe-predicting portion (301) predicts an input image by using a preceding decoded image stored in a frame memory portion (302) and outputs motion vectors. A difference calculating portion (303) determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion (304) which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions (305a to 305n). A loop-back control portion (307) decides whether each of the coded frequency-band-components of the coded prediction-error signal from respective coding portions is input to a synthesizing portion (309) and outputs a decoded prediction-error signal. The predicted image signal and the decoded prediction-error signal are combined to generate a decoded image signal corresponding to the input image. The decoded image signal is used for prediction of a subsequent input image. A motion-compensated interframe-predicting portion (901) predicts an input image by using a preceding decoded image stored in a frame memory portion (902) and outputs motion vectors. A difference calculating portion (903) determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion (904) which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions (905a to 905n) for quantizing and encoding the respective components. Buffer portions (906a to 906n) store the coded information and output the information to an external circuit. The buffers output respective frequency-band-components of the coded information according to retransmission request signals from a retransmission control portion (910).

公开(公告)号：EP1599047A2

公开(公告)日：2005-11-23

申请号：EP05017431.7

申请日：1998-04-14

申请人： SHARP KABUSHIKI KAISHA

发明人： Hibi, Keiichi ,  Sato, Seiji

IPC分类号： H04N7/26

CPC分类号： H04N19/89 ,  H04N19/102 ,  H04N19/61 ,  H04N19/63

摘要： A video-coding device and a video-decoding device, which are capable of assuring the necessary quality of a video sequence even if a transmission error and/or a loss of information occurs in a transmission line and preventing the propagation of decoding error to subsequent images, and can effectively retransmit the necessary coded information when a transmission error and/or a loss of information occurs in a transmission line. A motion-compensated interframe-predicting portion (301) predicts an input image by using a preceding decoded image stored in a frame memory portion (302) and outputs motion vectors. A difference calculating portion (303) determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion (304) which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions (305a to 305n). A loop-back control portion (307) decides whether each of the coded frequency-band-components of the coded prediction-error signal from respective coding portions is input to a synthesizing portion (309) and outputs a decoded prediction-error signal. The predicted image signal and the decoded prediction-error signal are combined to generate a decoded image signal corresponding to the input image. The decoded image signal is used for prediction of a subsequent input image. A motion-compensated interframe-predicting portion (901) predicts an input image by using a preceding decoded image stored in a frame memory portion (902) and outputs motion vectors. A difference calculating portion (903) determines a difference between the input image signal and the predicted image signal and outputs the difference as a prediction-error signal to a band-dividing portion (904) which in turn divides the prediction-error signal into n hierarchical layers of frequency-band-components and outputs them to respective coding portions (905a to 905n) for quantizing and encoding the respective components. Buffer portions (906a to 906n) store the coded information and output the information to an external circuit. The buffers output respective frequency-band-components of the coded information according to retransmission request signals from a retransmission control portion (910).

摘要翻译： 视频编码装置和视频解码装置，即使在传输线中发生传输错误和/或信息丢失也能够确保视频序列的必要质量，并且防止解码错误传播到随后的 图像，并且可以在传输线中发生传输错误和/或信息丢失时有效地重传必要的编码信息。 运动补偿帧间预测部（301）通过使用存储在帧存储器部（302）中的先前解码图像来预测输入图像，并输出运动矢量。 差分计算部分（303）确定输入图像信号和预测图像信号之间的差异，并将该差值作为预测误差信号输出到频带分割部分（304），频带分割部分又将预测误差信号划分为n 分层的频带分量并将其输出到相应的编码部分（305a至305n）。 环回控制部（307）判定来自各编码部的编码预测误差信号的编码频带分量中的每一个是否输入到合成部（309），并输出解码预测误差信号。 预测图像信号和解码预测误差信号被组合以产生对应于输入图像的解码图像信号。 解码图像信号用于对后续输入图像的预测。 运动补偿帧间预测部（901）通过使用存储在帧存储部（902）中的先前解码图像来预测输入图像，并输出运动矢量。 差分计算部分（903）确定输入图像信号和预测图像信号之间的差异，并将该差值作为预测误差信号输出到频带分割部分（904），分频部分又将预测误差信号划分为n 分层的频带分量并将其输出到各个编码部分（905a至905n），以对各个分量进行量化和编码。 缓冲部分（906a至906n）存储编码信息并将信息输出到外部电路。 缓冲器根据来自重传控制部分（910）的重传请求信号输出编码信息的各频带分量。

公开(公告)号：EP0765087B1

公开(公告)日：2003-11-12

申请号：EP96306265.8

申请日：1996-08-29

申请人： SHARP KABUSHIKI KAISHA

发明人： Hibi, Keiichi ,  Ema, Nobuyuki

IPC分类号： H04N7/36

CPC分类号： G06T9/008 ,  H04N19/109 ,  H04N19/46 ,  H04N19/51 ,  H04N19/517 ,  H04N19/52 ,  H04N19/537 ,  H04N19/54 ,  H04N19/56

公开(公告)号：EP1148715A1

公开(公告)日：2001-10-24

申请号：EP01303548.0

申请日：2001-04-19

申请人： SHARP KABUSHIKI KAISHA

发明人： Hibi, Keiichi ,  Shioi, Masahiro

IPC分类号： H04N5/14 ,  G08B13/194 ,  H04N7/26

CPC分类号： G08B13/19602 ,  G08B13/19604 ,  G08B13/19669 ,  G08B13/19676 ,  H04N5/147 ,  H04N19/51

摘要： The image processing apparatus includes a change detecting portion (13) for outputting a first control signal indicating transition from a small change state to a large change state and a second control signal indicating transition from a large change state to a small change state between picture planes of input motion picture data, and an operation control portion (14) for controlling starting and stopping of recording or transmission of input motion picture data according to the first control signal and the second control signal. During recording or transmission, the operation control portion (14) controls to stop recording or transmission if the first control signal is not output until after a predetermined arbitrary time T1 elapses after the second control signal is output.

摘要翻译： 图像处理装置包括：变化检测部（13），用于输出指示从小变化状态到大变化状态的转变的第一控制信号，以及指示从大变化状态到图像平面之间的小变化状态的转变的第二控制信号 以及用于根据第一控制信号和第二控制信号控制输入运动图像数据的记录或发送的开始和停止的操作控制部分（14）。 在记录或发送期间，如果在输出第二控制信号之后经过预定的任意时间T1之后，如果不输出第一控制信号，则操作控制部分（14）控制停止记录或发送。