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    • 2. 发明授权
    • Method and apparatus for accomplishing multiple description coding for video
    • 完成视频多重编码的方法和装置
    • US07813427B2
    • 2010-10-12
    • US11050570
    • 2005-02-03
    • Michael OrchardHamid JafarkhaniAmy ReibmanYao Wang
    • Michael OrchardHamid JafarkhaniAmy ReibmanYao Wang
    • H04N7/12H04N11/02H04N11/04H04B1/66
    • H04N21/234327H04N19/103H04N19/107H04N19/114H04N19/146H04N19/176H04N19/177H04N19/30H04N19/39H04N19/593H04N19/61
    • A method and apparatus for utilizing temporal prediction and motion compensated prediction to accomplish multiple description video coding is disclosed. An encoder receives a sequence of video frames and divides each frame into non-overlapping macroblocks. Each macroblock is then encoded using either an intraframe mode (I-mode) or a prediction mode (P-mode) technique. Both the I-mode and the P-mode encoding techniques produce an output for each of n channels used to transmit the encoded video data to a decoder. The P-mode technique generates at least n+1 prediction error signals for each macroblock. One of the at least n+1 P-mode prediction error signals is encoded such that it may be utilized to reconstruct the original sequence of video frames regardless of the number of channels received by the decoder. A component of the one of the at least n+1 P-mode prediction error signals is sent on each of the n channels. Each of the remaining at least n+1 P-mode prediction error signals is sent on a separate one of the n channels (along with the above mentioned component). These remaining at least n+1 P-mode prediction error signals are encoded such that, when combined with the component of the one P-mode prediction error signal which was sent on the same channel, a reasonably good reconstruction of the original sequence of video frames may be obtained if the number of received channels is between 1 and n−1.
    • 公开了一种利用时间预测和运动补偿预测来完成多描述视频编码的方法和装置。 编码器接收视频帧序列,并将每个帧划分成不重叠的宏块。 然后使用帧内模式(I模式)或预测模式(P模式)技术对每个宏块进行编码。 I模式和P模式编码技术都产生用于将编码视频数据发送到解码器的n个通道中的每一个的输出。 P模式技术为每个宏块产生至少n + 1个预测误差信号。 对至少n + 1个P模式预测误差信号中的一个进行编码,使得它可以用于重建视频帧的原始序列,而不管解码器接收的信道数量如何。 在n个通道中的每一个上发送至少n + 1个P模式预测误差信号之一的分量。 剩余的至少n + 1个P模式预测误差信号中的每一个在n个通道中的单独一个(以及上述组件)上发送。 这些剩余的至少n + 1个P模式预测误差信号被编码,使得当与在同一信道上发送的一个P模式预测误差信号的分量组合时,原始视频序列的相当好的重建 如果接收的信道的数量在1和n-1之间,则可以获得帧。
    • 3. 发明申请
    • MULTIPLE DESCRIPTION CODING COMMUNICATION SYSTEM
    • 多种编码通信系统
    • US20080025416A1
    • 2008-01-31
    • US11869443
    • 2007-10-09
    • Hamid JafarkhaniMichael OrchardAmy ReibmanYao Wang
    • Hamid JafarkhaniMichael OrchardAmy ReibmanYao Wang
    • H04B14/06
    • H03M7/40H04N19/39H04N19/61
    • A method and apparatus reliably encode and decode information over a communication system. The method includes transforming two coefficients into two pairs of random variables, one random variable in each pair having substantially equal energy as one random variable in the other pair. The method further includes quantizing each of the pairs of random variables and entropy coding each quantized random variable separately creating an encoded bitstreams. The encoded bitstreams are received by a decoder which first determines which channels of the communication system are working. The encoded bitstream is entropy decoded, inversed quantized and inversed transformed. An inverse transform performs three different transformations depending upon which channels are working, i.e., whether the first, second or both channels are working.
    • 一种方法和装置通过通信系统可靠地编码和解码信息。 该方法包括将两个系数变换成两对随机变量,每对中的一个随机变量具有基本相等的能量作为另一对中的一个随机变量。 该方法还包括量化每对随机变量,并对每个量化的随机变量进行熵编码,分别创建编码比特流。 编码的比特流由解码器接收,该解码器首先确定通信系统的哪些信道正在工作。 编码比特流被熵解码,反相量化和反转换。 逆变换根据哪个通道工作,即第一,第二或两个通道是否工作,执行三种不同的变换。
    • 4. 发明申请
    • Method and apparatus for accomplishing multiple description coding for video
    • 完成视频多重编码的方法和装置
    • US20050152456A1
    • 2005-07-14
    • US11050570
    • 2005-02-03
    • Michael OrchardHamid JafarkhaniAmy ReibmanYao Wang
    • Michael OrchardHamid JafarkhaniAmy ReibmanYao Wang
    • G06T9/00H04N7/12H04N7/24H04N7/26H04N7/50
    • H04N21/234327H04N19/103H04N19/107H04N19/114H04N19/146H04N19/176H04N19/177H04N19/30H04N19/39H04N19/593H04N19/61
    • A method and apparatus for utilizing temporal prediction and motion compensated prediction to accomplish multiple description video coding is disclosed. An encoder receives a sequence of video frames and divides each frame into non-overlapping macroblocks. Each macroblock is then encoded using either an intraframe mode (I-mode) or a prediction mode (P-mode) technique. Both the I-mode and the P-mode encoding techniques produce an output for each of n channels used to transmit the encoded video data to a decoder. The P-mode technique generates at least n+1 prediction error signals for each macroblock. One of the at least n+1 P-mode prediction error signals is encoded such that it may be utilized to reconstruct the original sequence of video frames regardless of the number of channels received by the decoder. A component of the one of the at least n+1 P-mode prediction error signals is sent on each of the n channels. Each of the remaining at least n+1 P-mode prediction error signals is sent on a separate one of the n channels (along with the above mentioned component). These remaining at least n+1 P-mode prediction error signals are encoded such that, when combined with the component of the one P-mode prediction error signal which was sent on the same channel, a reasonably good reconstruction of the original sequence of video frames may be obtained if the number of received channels is between 1 and n−1.
    • 公开了一种利用时间预测和运动补偿预测来完成多描述视频编码的方法和装置。 编码器接收视频帧序列,并将每个帧划分成不重叠的宏块。 然后使用帧内模式(I模式)或预测模式(P模式)技术对每个宏块进行编码。 I模式和P模式编码技术都产生用于将编码视频数据发送到解码器的n个通道中的每一个的输出。 P模式技术为每个宏块产生至少n + 1个预测误差信号。 对至少n + 1个P模式预测误差信号中的一个进行编码,使得它可以用于重建视频帧的原始序列,而不管解码器接收的信道数量如何。 在n个通道中的每一个上发送至少n + 1个P模式预测误差信号之一的分量。 剩余的至少n + 1个P模式预测误差信号中的每一个在n个通道中的单独一个(以及上述组件)上发送。 这些剩余的至少n + 1个P模式预测误差信号被编码,使得当与在同一信道上发送的一个P模式预测误差信号的分量组合时,原始视频序列的相当好的重建 如果接收的信道的数量在1和n-1之间,则可以获得帧。
    • 9. 发明授权
    • Method and apparatus for accomplishing multiple description coding for video
    • 完成视频多重编码的方法和装置
    • US06556624B1
    • 2003-04-29
    • US09478002
    • 2000-01-05
    • Michael OrchardHamid JafarkhaniAmy ReibmanYao Wang
    • Michael OrchardHamid JafarkhaniAmy ReibmanYao Wang
    • H04N712
    • H04N21/234327H04N19/103H04N19/107H04N19/114H04N19/146H04N19/176H04N19/177H04N19/30H04N19/39H04N19/593H04N19/61
    • A method and apparatus for utilizing temporal prediction and motion compensated prediction to accomplish multiple description video coding is disclosed. An encoder receives a sequence of video frames and divides each frame into non-overlapping macroblocks. Each macroblock is then encoded using either an intraframe mode (I-mode) or a prediction mode (P-mode) technique. Both the I-mode and the P-mode encoding techniques produce an output for each of n channels used to transmit the encoded video data to a decoder. The P-mode technique generates at least n+1 prediction error signals for each macroblock. One of the at least n+1 P-mode prediction error signals is encoded such that it may be utilized to reconstruct the original sequence of video frames regardless of the number of channels received by the decoder. A component of the one of the at least n+1 P-mode prediction error signals is sent on each of the n channels. Each of the remaining at least n+1 P-mode prediction error signals is sent on a separate one of the n channels (along with the above mentioned component). These remaining at least n+1 P-mode prediction error signals are encoded such that, when combined with the component of the one P-mode prediction error signal which was sent on the same channel, a reasonably good reconstruction of the original sequence of video frames may be obtained if the number of received channels is between 1 and n−1.
    • 公开了一种利用时间预测和运动补偿预测来完成多描述视频编码的方法和装置。 编码器接收视频帧序列,并将每个帧划分成不重叠的宏块。 然后使用帧内模式(I模式)或预测模式(P模式)技术对每个宏块进行编码。 I模式和P模式编码技术都产生用于将编码视频数据发送到解码器的n个通道中的每一个的输出。 P模式技术为每个宏块产生至少n + 1个预测误差信号。 对至少n + 1个P模式预测误差信号中的一个进行编码,使得它可以用于重建视频帧的原始序列,而不管解码器接收的信道数量如何。 在n个通道中的每一个上发送至少n + 1个P模式预测误差信号之一的分量。 剩余的至少n + 1个P模式预测误差信号中的每一个在n个通道中的单独一个(以及上述组件)上发送。 这些剩余的至少n + 1个P模式预测误差信号被编码,使得当与在同一信道上发送的一个P模式预测误差信号的分量组合时,原始视频序列的相当好的重建 如果接收的信道的数量在1和n-1之间,则可以获得帧。
    • 10. 发明授权
    • Multiple description coding communication system
    • 多描述编码通信系统
    • US06823018B1
    • 2004-11-23
    • US09511367
    • 2000-02-23
    • Hamid JafarkhaniMichael T. OrchardAmy R. ReibmanYao Wang
    • Hamid JafarkhaniMichael T. OrchardAmy R. ReibmanYao Wang
    • H04B1406
    • H04N19/39
    • A method and apparatus reliably encode and decode information over a communication system. The method includes transforming two coefficients into two pairs of random variables, one random variable in each pair having substantially equal energy as one random variable in the other pair. The method further includes quantizing each of the pairs of random variables and entropy coding each quantized random variable separately creating an encoded bitstreams. The encoded bitstreams are received by a decoder which first determines which channels of the communication system are working. The encoded bitstream is entropy decoded, inversed quantized and inversed transformed. An inverse transform performs three different transformations depending upon which channels are working, i.e., whether the first, second or both channels are working.
    • 一种方法和装置通过通信系统可靠地编码和解码信息。 该方法包括将两个系数变换成两对随机变量,每对中的一个随机变量具有基本相等的能量作为另一对中的一个随机变量。 该方法还包括量化每对随机变量,并对每个量化的随机变量进行熵编码,分别创建编码比特流。 编码的比特流由解码器接收,该解码器首先确定通信系统的哪些信道正在工作。 编码比特流被熵解码,反相量化和反转换。 逆变换根据哪个通道工作,即第一,第二或两个通道是否工作,执行三种不同的变换。