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    • 1. 发明授权
    • Decoding a sequence of digital images with error concealment
    • 解码具有错误隐藏的数字图像序列
    • US08774538B2
    • 2014-07-08
    • US13013443
    • 2011-01-25
    • Eric NassorHervé Le FlochNaël Ouedraogo
    • Eric NassorHervé Le FlochNaël Ouedraogo
    • G06K9/46H04N7/12H04N7/32
    • H04N7/327G06K9/36H04N19/50H04N19/895
    • A sequence of digital images encoded according to a predictive format is decoded using encoded auxiliary data which is representative of at least part of the sequence of digital images. A current encoded image, received with at least one detected error, is decoded. The decoding includes applying an error concealment decoding on at least part of the current encoded image containing such a detected error to obtain a first decoded image. An item of information representative of reconstruction errors is obtained based upon a reconstruction confidence of the error concealment decoding for at least one pixel of the error-containing part of the current image. The encoded auxiliary data and the first decoded image are processed based upon the item of information representative of reconstruction errors to obtain corrected auxiliary data. The first decoded image is modified to obtain a second decoded image based upon the corrected auxiliary data.
    • 根据预测格式编码的数字图像序列使用代表数字图像序列的至少一部分的编码辅助数据进行解码。 用至少一个检测到的错误接收的当前编码图像被解码。 解码包括对包含这种检测到的错误的当前编码图像的至少一部分应用错误隐藏解码,以获得第一解码图像。 基于对当前图像的含错误部分的至少一个像素的错误隐藏解码的重建置信度,获得代表重建误差的信息项。 基于代表重建误差的信息项来处理编码的辅助数据和第一解码图像,以获得校正的辅助数据。 第一解码图像被修改以基于校正的辅助数据获得第二解码图像。
    • 2. 发明申请
    • METHOD AND DEVICE FOR COMPUTING THE AVAILABLE SPACE IN A PACKET FOR DATA STREAM TRANSPORT
    • 用于在数据流传输的分组中计算可用空间的方法和装置
    • US20110194439A1
    • 2011-08-11
    • US13016651
    • 2011-01-28
    • Frédéric MazeEric Nassor
    • Frédéric MazeEric Nassor
    • H04L12/26
    • H04L49/901
    • The method of computing the available space in a packet for data stream transport comprises: a step of determining the requirements of each module of a data stream manager, for space in the packet for at least two types of header and/or extension data required by each protocol and/or service used by said module, a step of determining a maximum space requirement in the packet to meet all these requirements, by implementing different rules for combining space requirements for the different types of data and a sum of the combined requirements for the different types of data and a step of computing a difference between the space of the packet and the maximum space requirement in the packet in order to determine the available space for data stream transport.
    • 计算用于数据流传输的分组中的可用空间的方法包括:为数据包中的空间确定数据流管理器的每个模块的要求的步骤,用于针对数据流管理器所需的至少两种类型的报头和/或扩展数据 由所述模块使用的每个协议和/或服务,通过实施用于组合不同类型的数据的空间要求的不同规则和组合要求的总和来确定分组中的最大空间需求以满足所有这些要求的步骤 不同类型的数据和计算分组的空间与分组中的最大空间需求之间的差异的步骤,以便确定用于数据流传输的可用空间。
    • 3. 发明授权
    • Protection of the distribution of digital documents in a peer to peer network
    • 保护对等网络中数字文档的分发
    • US07966491B2
    • 2011-06-21
    • US10857884
    • 2004-06-02
    • Eric NassorFrédéric MazePascal Viger
    • Eric NassorFrédéric MazePascal Viger
    • H04L9/32
    • H04L63/08H04L67/104H04L67/1063H04L69/329
    • A central server in a network of a hybrid peer to peer type, receives a request from a client for obtaining a digital document, where the request contains a reference of the digital document. The server selects a peer system of the network likely to contain the digital document, and generates an access key for controlling access to the digital document by the client, where the access key is generated by an encrypting method using a private key of the central server, a current time when the encrypting method is executed and an address of the client on the network. The server then sends a message to the client, where the message has the reference of the digital document, an address of the selected peer system on the network and the generated access key.
    • 混合对等类型的网络中的中央服务器,从客户端接收用于获取数字文档的请求,其中请求包含数字文档的引用。 服务器选择可能包含数字文档的网络的对等系统,并且生成用于控制客户机对数字文档的访问的访问密钥,其中通过使用中央服务器的私钥的加密方法生成访问密钥 ,执行加密方法的当前时间和网络上客户端的地址。 然后,服务器向客户端发送消息,其中消息具有数字文档的引用,网络上所选择的对等系统的地址和生成的访问密钥。
    • 6. 发明申请
    • METHOD AND DEVICE FOR TRANSMITTING DATA
    • 用于发送数据的方法和设备
    • US20080294789A1
    • 2008-11-27
    • US12123317
    • 2008-05-19
    • Eric NassorFrederic Maze
    • Eric NassorFrederic Maze
    • G06F15/16
    • H04N21/44004H04N21/23406H04N21/234327H04N21/2381H04N21/2402H04N21/2662H04N21/631H04N21/64322H04N21/6437H04N21/8451
    • To transmit data between a server and at least one client in a communication network, this data having to comply with a first transmission latency, for a first processing to be carried out by a first client, and with a greater second latency, for a second processing to be carried out by a second client: the server determines, from the data, taking account of the variable available bandwidth, a first data stream having a rate compatible with the first latency; it transmits this first stream to the clients; it determines, from the data not included in the first stream, taking account of the variable available bandwidth, a second data stream having a rate compatible with the second latency; and it transmits this second stream to the second client. The calculation of the rate of the first stream takes account of the unsent quantity of data of the second stream.
    • 为了在通信网络中的服务器与至少一个客户端之间传输数据,该数据必须符合第一传输等待时间,用于由第一客户机执行的第一处理和更大的第二等待时间 处理由第二客户端执行:服务器从数据中确定考虑了可变可用带宽,具有与第一等待时间兼容的速率的第一数据流; 它将第一个流传输给客户端; 它从不包括在第一流中的数据中考虑到可变可用带宽,确定具有与第二等待时间兼容的速率的第二数据流; 并且将该第二流传输到第二客户端。 第一个流的速率的计算考虑了第二个流的未发送数据量。
    • 9. 发明授权
    • Method and device for transmitting data, in particular video
    • 用于传输数据的方法和装置,特别是视频
    • US08370694B2
    • 2013-02-05
    • US12368820
    • 2009-02-10
    • Xavier HenocqEric Nassor
    • Xavier HenocqEric Nassor
    • G08C25/02
    • H04L1/1848H04L1/1806H04L1/1854H04L1/1887
    • A method and device for transmitting data packets from a server to at least one client concerns i) estimating a time lapse between the transmission of a successive first and second packet, on the basis of information relating to the first packet, the information being representative of whether or not the first and second packets transport image data from the same image, and ii) triggering and defining retransmission of the second packet, on the basis of said time lapse. In one embodiment, the client estimates the time lapse on the basis of the type of the second packet and on the basis of statistical results concerning the type of the second packet and requests the retransmission of a packet awaited for a longer time than that time lapse. In another embodiment, the server estimates the time lapse on the basis of the type of payload of a first packet to retransmit and of at least one second packet following the first packet to retransmit and spontaneously retransmits the second packet with the first packet on the basis of that time lapse.
    • 用于将数据分组从服务器发送到至少一个客户端的方法和设备涉及i)基于与第一分组相关的信息来估计在连续的第一和第二分组的传输之间的时间间隔, 第一和第二分组是否传输来自相同图像的图像数据,以及ii)基于所述时间流逝触发并定义第二分组的重传。 在一个实施例中,客户端基于第二分组的类型来估计时间流逝,并且基于与第二分组的类型相关的统计结果,并且请求等待更长时间的分组的重传比该时间流逝 。 在另一个实施例中,服务器基于要重发的第一分组的有效载荷的类型以及第一分组之后的至少一个第二分组来估计时间流逝,以基于第一分组来重传并自发地重传具有第一分组的第二分组 的时间流逝。
    • 10. 发明授权
    • Method and a device for transmitting images
    • 方法和用于传输图像的装置
    • US08126049B2
    • 2012-02-28
    • US12137975
    • 2008-06-12
    • Hervé Le FlochEric Nassor
    • Hervé Le FlochEric Nassor
    • H04N7/12H04N11/02H04J1/16
    • H04N21/23439H04N19/103H04N19/114H04N19/164H04N19/172H04N19/177H04N19/61H04N21/238H04N21/23805H04N21/26216H04N21/26233H04N21/64322H04N21/8453
    • The method of transmission of a datastream representing a sequence of images over a network in which the quantity of information that may be sent per unit of time varies substantially cyclically, said transmission extending over a plurality of cycles, comprises: a step (805 to 807, 809, 810) of determining times for which the quantity of information that may be sent per unit of time over the network is greater, and respectively less, than its average, on the basis of the substantially cyclical past variation in said quantity of information and a step (801 to 805, 812 to 816) of sending over said network, at said times, images corresponding to a greater, and respectively smaller, quantity of information than the average of the images. During the determining step, a period of cyclical variation of the quantity of information that may be sent over the network is determined.
    • 通过网络发送表示图像序列的数据流的方法,其中可以每单位时间发送的信息量基本上周期性地变化,所述传输在多个周期上延伸,包括:步骤(805至807 ,809,810),其基于所述信息量的基本上周期性的过去变化,确定每单位时间在网络上可以发送的信息量更大的次数,并且分别小于其平均值 以及在所述时间,通过所述网络发送对应于比图像的平均值更大且分别较小的信息量的图像的步骤(801至805,812至816)。 在确定步骤期间,确定可以通过网络发送的信息量的周期性变化周期。