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    • 1. 发明申请
    • Use of a Feedback Channel for Image Broadcasting
    • 使用反馈信道进行图像广播
    • US20090138933A1
    • 2009-05-28
    • US12227824
    • 2007-05-22
    • Baillavoine MarcJoel JungLoic Baroux
    • Baillavoine MarcJoel JungLoic Baroux
    • H04N7/173H04N5/00
    • H04N21/6125H04N19/107H04N19/164H04N19/166H04N19/89H04N21/4425H04N21/6175H04N21/6371H04N21/6375H04N21/6377
    • The invention relates to a method for broadcasting images from a video sequence, the method comprising the following steps at the level of a broadcasting equipment (2): including images (14) in an output stream for transmission to at least one restoration equipment; receiving in return from said restoration equipment error messages relating to the restoration of images from the video sequence; analysing (24) the error messages in order to identify images or images parts which are not or restored badly restored; determining (32) answer messages including correction images or image parts. The method is characterised in that it further comprises: a step (26) for determining a level of seriousness (FGi) for each error message according to the analysis performed; and a decision step (30) for sending back a response message to an error message according to the level of seriousness of the error message.
    • 本发明涉及一种用于从视频序列广播图像的方法,该方法包括在广播设备(2)的级别处的以下步骤:包括输出流中的图像(14),用于传输至少一个恢复设备; 从所述恢复设备的回报中接收与从视频序列恢复图像有关的错误消息; 分析(24)错误信息,以识别未恢复或恢复不正确的图像或图像部分; 确定(32)应答消息,包括校正图像或图像部分。 该方法的特征在于还包括:根据所执行的分析确定每个错误消息的严重程度(FGi)的步骤(26); 以及用于根据所述错误消息的严重性级别将响应消息发送回到错误消息的判定步骤(30)。
    • 4. 发明申请
    • Video encoding method and device
    • 视频编码方法和设备
    • US20090097555A1
    • 2009-04-16
    • US11794808
    • 2005-12-15
    • Marc BaillavoineJoel JungJean-Christophe Amiel
    • Marc BaillavoineJoel JungJean-Christophe Amiel
    • H04N7/32
    • H04N19/67H04N19/46H04N19/895
    • Successive images (F) of a video sequence are encoded in order in generate parameters which are included in an output flow (F) that is to be transmitted to a decoder. The encoding of certain images is effected in Inter mode relative to one or several previous images of the sequence. The output flow also includes long term marking commands for certain images and demarking commands for previously marked images. Each long-term marked image is kept in a memory by the decoder until a corresponding demarking command is received. Return information on the restoration of the images of the video sequence by the decoder is received by the encoder (1) and analyzed in order to identify an image that has been lost by the decoder. It is possible to encode a following image of the sequence in Inter mode in relation to a long-term marked image in response to identification of an image lost to the decoder.
    • 视频序列的连续图像(F)按照要被发送到解码器的输出流(F)中包含的生成参数的顺序进行编码。 某些图像的编码在相对于序列的一个或多个先前图像的Inter模式下实现。 输出流还包括用于特定图像的长期标记命令和用于先前标记的图像的标记命令。 每个长期标记的图像由解码器保存在存储器中,直到接收到相应的标记命令。 由解码器恢复视频序列的图像的返回信息由编码器(1)接收并进行分析,以识别由解码器丢失的图像。 响应于对解码器丢失的图像的识别,可以相对于长期标记的图像在Inter模式中对序列的后续图像进行编码。
    • 5. 发明授权
    • Digital image processing method
    • 数字图像处理方法
    • US07254278B2
    • 2007-08-07
    • US10341910
    • 2003-01-14
    • Joel Jung
    • Joel Jung
    • G06K9/40
    • H04N19/86H04N19/117H04N19/134H04N19/176H04N19/18H04N19/60H04N19/61
    • The present invention relates to a method of post-processing a digital image (Im) comprising pixels, said digital image being encoded and decoded according to a technique of coding by blocks of pixels. Said method comprises a classification step (6) intended to allocate a class (Cli) to a block (Bj) of pixels of said digital image, a step of evaluating the degradation (5) of said digital image delivering a degradation measurement (DM) of said digital image, a filter selection step (9) intended to associate a filter (F1) with a pair of adjacent blocks (Bj, Bk) according to their respective classes (Clm, Cln) and the degradation measurement (DM) of said digital image, a filtering decision step (8) intended to deliver a filtering decision (Dec) for a pair of adjacent blocks (Bj, Bk) according to the degradation measurement (DM) and a filtering step (11) intended to filter a pair of adjacent blocks (Bj, Bk) by means of its associated filter (F1) delivering a filtered digital image (ImF). The advantage of such a method is that it is both of low complexity and very effective.
    • 本发明涉及一种后处理包含像素的数字图像(Im)的方法,所述数字图像根据由像素块编码的技术进行编码和解码。 所述方法包括分类步骤(6),其旨在将类(C1)分配给所述数字图像的像素的块(B> j>),评估步骤 所述数字图像的劣化(5)传送所述数字图像的劣化测量(DM);滤波器选择步骤(9),用于将滤波器(F 1> 1)与一对相邻块 根据它们各自的等级(Cl,m,Cl,n N)和所述降解(B j j,,degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation degradation 所述数字图像的测量(DM),滤波决定步骤(8),用于传递一对相邻块(B SUB),B
    • 6. 发明授权
    • Method of processing digital images for low-bit rate applications
    • 低比特率应用数字图像处理方法
    • US07123776B2
    • 2006-10-17
    • US10341909
    • 2003-01-14
    • Joel Jung
    • Joel Jung
    • G06K9/40
    • G06T9/00G06T9/007
    • The present invention relates to a method of processing digital images comprising pixel blocks, said method comprising a step of detecting blocking artifacts (41) between two adjacent blocks (Bj,bk), and a step of filtering (43) the pair of adjacent blocks. The method according to the invention further comprises a filter decision step (42) based on a comparison between luminance values of the pixels of the two adjacent blocks and a reference function representing a difference of minimum luminance values that can be seen by an observer as a function of an average luminance area of the image in order to determine whether a difference of luminance between the blocks is either or not visible to an observer.
    • 本发明涉及一种处理包括像素块的数字图像的方法,所述方法包括检测两个相邻块(Bj,bk)之间的块伪影(41)的步骤,以及过滤(43)所述一对相邻块 。 根据本发明的方法还包括基于两个相邻块的像素的亮度值之间的比较的滤波器判定步骤(42)和表示观察者可以看到的最小亮度值的差的参考函数,作为 图像的平均亮度区域的功能,以便确定块之间的亮度差是观察者还是不可见。
    • 9. 发明申请
    • Video Coding Method And Device
    • 视频编码方法和设备
    • US20090213939A1
    • 2009-08-27
    • US11988151
    • 2006-06-19
    • Joel JungMarc BaillavoinePatrick Boissonade
    • Joel JungMarc BaillavoinePatrick Boissonade
    • H04N7/26
    • H04N21/23418H04N19/107H04N19/109H04N19/166H04N19/176H04N19/46H04N19/573H04N19/58H04N19/89H04N21/2343H04N21/6583
    • A video coding method, comprising the following steps: a) successive images (F) of a video sequence are coded to generate coding parameters, b) the coding parameters are included in an output stream (Φ) to be transmitted to a station (B) including a decoder (2), c) back channel information on reconstruction of the images of the video sequence by the decoder is received from said station, d) the back channel information is analyzed in order: d1) to identify a reconstructed image that includes a portion that has been lost in the decoder, d2) to identify in the subsequent coded images between said reconstructed image and a current image to be coded an image portion that refers to said lost portion identified in the step d1), e) said current image of the video sequence is coded in a coding mode that is a function of the identification or non-identification of a lost portion in the step d).
    • 一种视频编码方法,包括以下步骤:a)对视频序列的连续图像(F)进行编码以产生编码参数,b)将编码参数包括在要发送到站(B)的输出流(Phi)中 )包括解码器(2),c)从所述站接收解码器对视频序列的图像重构的反向信道信息,d)依次分析后向信道信息:d1)识别重建图像, 包括已经在解码器中丢失的部分,d2)在所述重建图像和要编码的当前图像之间的后续编码图像中识别涉及步骤d1)中识别的所述丢失部分的图像部分,e)所述 以步骤d)中的丢失部分的识别或不识别的编码模式对视频序列的当前图像进行编码。