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11.发明授权Method of coding a video image stream with a view for subsequent recoding using the same type of code 有权使用相同类型的代码对视频图像流进行编码以便后续重新编码的视图的方法公开(公告)号：US07733954B2
公开(公告)日：2010-06-08
申请号：US10296069
申请日：2001-05-09
申请人： Patrice Alexandre , Jean Chatel
发明人： Patrice Alexandre , Jean Chatel
IPC分类号： H04N7/26
摘要： The invention lies within the area of image compression coding, in particular of MPEG type, which uses recoding help data. The invention affords a solution for reusing the help data selectively. To this end, the invention adjoins an electronic signature representative of the constraints of the coder. Thus, it becomes possible to determine whether the help data are reusable or not for a subsequent coding using other constraints.
摘要翻译： 本发明在图像压缩编码领域，特别是使用重新编码帮助数据的MPEG类型的领域。 本发明提供了一种用于有选择地重用帮助数据的解决方案。 为此，本发明与编码器的约束的电子签名相邻。 因此，可以确定帮助数据是否可重用于使用其他约束的后续编码。
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公开(公告)号：US06229925B1
公开(公告)日：2001-05-08
申请号：US09081447
申请日：1998-05-19
IPC分类号： G06K936
CPC分类号： H04N19/87 , H04N19/114 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/146 , H04N19/15 , H04N19/159 , H04N19/177 , H04N19/179 , H04N19/61 , H04N19/80 , H04N19/85
摘要： The invention relates to a device for pre-processing video images intended to be coded in the MPEG 2 format. The MPEG 2 standard provides that, mode which exploits the spatial redundancy of the images. The images thus coded then define a succession of groups of images, a group of images being referred to as a GOP. The pre-processing device according to the invention comprises an image memory and an analysis circuit. The image memory makes it possible to store the various images contained in the forecast GOP of rank ok and ax of the first few images contained in the GOP of rank ok+l, ax being an integer greater than or equal to 1. The analysis circuit is linked to the image memory and makes it possible to perform measurements on the images contained therein. The knowledge about the images of the GOP of rank and about the first images of the forecast GOP of rank k+1 which is ascertained following the above mentioned measurements is then used for coding the GOP of rank k. The invention applies to systems for coding images according to the MPEG 2 standard.
摘要翻译： 本发明涉及一种用于预处理以MPEG2格式编码的视频图像的装置。 MPEG 2标准提供了利用图像的空间冗余的模式。 因此，如此编码的图像定义了一组连续的图像，一组图像被称为GOP。根据本发明的预处理装置包括图像存储器和分析电路。图像存储器使得可以存储 包含在秩ok的预测GOP中的各种图像和包含在等级ok + l的GOP中的前几个图像的ax，ax是大于或等于1的整数。分析电路链接到图像存储器 可以对其中包含的图像执行测量。 关于GOP的等级图像和关于按照上述测量确定的秩k + 1的预测GOP的第一图像的知识然后被用于对等级k的GOP进行编码。本发明适用于编码的系统 图像根据MPEG 2标准。
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公开(公告)号：US07561568B2
公开(公告)日：2009-07-14
申请号：US11154915
申请日：2005-06-16
IPC分类号： H04L12/56
CPC分类号： H04N21/23655
摘要： A multiplexing device is coupled to various coding devices. The multiplexing device does not attempt to mutually synchronize the various coding devices but, instead, circumvents such synchronization while making it possible to work with the various coding devices and to obtain synchronous actions at the input of the multiplexer. In particular, the multiplexing device transmits control commands and an instant of action to each of the coding devices.
摘要翻译： 多路复用装置耦合到各种编码装置。 复用装置不试图使各种编码装置相互同步，而是避免这样的同步，同时使得可以与各种编码装置一起工作并且在多路复用器的输入端获得同步动作。 具体地，复用装置向每个编码装置发送控制命令和动作时刻。
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公开(公告)号：US20060002410A1
公开(公告)日：2006-01-05
申请号：US11154915
申请日：2005-06-16
CPC分类号： H04N21/23655
摘要： The invention relates to a method and a device for multiplexing. The device is able to receive data packets from at least one coding device, some of the data packets comprising a time label, said device comprising a time reference and being able to transmit commands to the said coding device. According to the invention, the device is characterized in that it comprises: means for calculating an instant of action for the coding device at which it desires that the coding device perform the said command as a function of the instant at which it transmits the said command to the said coding device, of the time label of the data packets, of its time reference and of the maximum transfer time between the coding device and the multiplexing device, means for transmitting said instant of action and the said command to the coding device.
摘要翻译： 本发明涉及一种复用方法和装置。 该设备能够从至少一个编码设备接收数据分组，一些数据分组包括时间标签，所述设备包括时间参考，并且能够向所述编码设备发送命令。 根据本发明，该装置的特征在于：它包括：用于计算编码装置的动作时刻的装置，其中期望编码装置根据其发送所述命令的时刻执行所述命令 向所述编码装置发送数据分组的时间标签及其时间参考和编码装置与多路复用装置之间的最大传送时间的装置，用于将所述动作时刻和所述命令发送到编码装置的装置。
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公开(公告)号：US5692103A
公开(公告)日：1997-11-25
申请号：US230140
申请日：1994-04-20
申请人： Philip Lockwood , Patrice Alexandre
发明人： Philip Lockwood , Patrice Alexandre
摘要： In the recognition phase, the signal originating from a sensor is processed to obtain parameters which are compared with those stored in a dictionary in the learning phases so as to recognize the voice structures uttered by the user in a noisy environment. The obtaining of the said parameters during the learning and recognition phases includes the formation of digital frames of predetermined length from the signal originating from the sensor, the transformation of each frame from the time domain to the frequency domain to obtain a spectrum X(i), and the application of an inverse transformation, from the frequency domain to the time domain, to the magnitude .vertline.X(i).vertline..sup..gamma., where .vertline.X(i).vertline. represents the modulus of the spectrum and .gamma. represents an appropriate exponent.
摘要翻译： 在识别阶段，处理来自传感器的信号，以获得与学习阶段中存储在字典中的信号进行比较的参数，以便在噪声环境中识别用户发出的声音结构。 在学习和识别阶段期间获得所述参数包括从源自传感器的信号形成预定长度的数字帧，从时域到频域的每个帧的变换以获得频谱X（i） ，以及从频域到时域的逆变换到量值| X（i）|的应用 γ，其中| X（i）| 表示光谱的模量，γ表示适当的指数。
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