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    • 1. 发明授权
    • Video coding method and corresponding transmittable video signal
    • 视频编码方式和相应的可传输视频信号
    • US07412001B2
    • 2008-08-12
    • US10270334
    • 2002-10-11
    • Cecile DufourGwenaelle MarquantStephane Edouard Valente
    • Cecile DufourGwenaelle MarquantStephane Edouard Valente
    • H04N7/12
    • H04N19/31H04N19/20H04N19/29
    • The invention relates to a video coding method applied to a sequence of video frames and generating a coded bitstream constituted of video data that represent all the video object planes and are described in terms of separate channels. In said video data, each data item is described by means of a bitstream syntax allowing any decoder to recognize and decode all the segments of the content of said bitstream. The temporal resolution of the sequence is described by means of some specific syntactic elements. According to the invention, which finds an application for instance within the video compression standards of the MPEG family, the syntax also comprises specific flags for describing, in the coded bitstream, the maximum frame rate of each described channel.
    • 本发明涉及一种应用于视频帧序列的视频编码方法,并且生成由表示所有视频对象平面的视频数据构成的编码比特流,并以单独的信道来描述。 在所述视频数据中,通过允许任何解码器识别和解码所述比特流的内容的所有片段的比特流语法来描述每个数据项。 通过一些特定的句法元素来描述序列的时间分辨率。 根据本发明,其发现例如在MPEG系列的视频压缩标准中的应用,语法还包括用于在编码比特流中描述每个所描述的频道的最大帧速率的特定标志。
    • 2. 发明授权
    • Preprocessing method applied to textures of arbitrarily shaped objects
    • 预处理方法应用于任意形状物体的纹理
    • US06768495B2
    • 2004-07-27
    • US10061084
    • 2002-02-01
    • Stephane Edouard Valente
    • Stephane Edouard Valente
    • G09G500
    • H04N19/649H04N19/21
    • The invention relates to a method of preprocessing data that correspond to arbitrarily shaped objects and comprise for each object a texture part and an object mask, said method comprising, for each object plane associated to an object, the steps of: (1) partitioning the object plane into bidimensional blocks; (2) introducing in each block a set of basis vectors chosen in order to express an estimate of the original pixel values as a linear combination of said basis vectors; (3) defining a cost function &psgr; to measure the distortion between the original expression of the pixel values and said estimate of this original expression; (4) finding the coefficients allowing to minimize said cost function &psgr;, said finding step itself comprising the following operations: initialization, extraction of the basis vectors restricted to the opaque pixels and calculation of projection coefficients, iterations, and interruption of said iterations according to a predetermined criterion.
    • 本发明涉及对与任意形状的对象相对应的数据进行预处理的方法,并且为每个对象包括纹理部分和对象掩模,所述方法包括对于与对象相关联的每个对象平面的步骤:(1)将 (2)在每个块中引入选择的一组基矢量,以便将所述原始像素值的估计值表示为所述基本向量的线性组合;(3)定义成本函数psi以测量所述原始像素值 像素值的原始表达与该原始表达式的所述估计之间的失真;(4)找到允许最小化所述成本函数psi的系数,所述发现步骤本身包括以下操作:初始化,被限制到 不透明像素,并根据预定标准计算投影系数,迭代和所述迭代的中断。
    • 4. 发明申请
    • Multiple Instance Video Decoder For Macroblocks Coded in Progressive and an Interlaced Way
    • 用于以逐行编码和交错方式编码的宏块的多实例视频解码器
    • US20080205524A1
    • 2008-08-28
    • US11915399
    • 2006-05-18
    • Stephane Edouard Valente
    • Stephane Edouard Valente
    • H04N7/01
    • H04N7/012H04N19/16H04N19/176H04N19/42H04N19/44H04N19/61
    • The present invention relates to a video decoder (DEC) for decoding a bit stream (BS) corresponding to pictures (P) of a video signal, the coded pictures being likely to include macroblocks coded in a progressive and in an interlaced way. This decoder comprises a decoding unit (DEU) for decoding macroblocks coded in a progressive way and, according to the invention, a multiple instance unit (MIU) for presenting, for each field-predicted macroblock, a motion compensation vector associated with each field, constructing as many predicted entire macroblocks as fields with each corresponding motion compensation vector, and reconstructing said field-predicted macroblock by re-interlacing fields respectively taken from each corresponding predicted entire macroblock. Use: Mobile devices
    • 本发明涉及用于对与视频信号的图像(P)相对应的比特流(BS)进行解码的视频解码器(DEC),编码的图像可能包括以逐行扫描和隔行扫描方式编码的宏块。 该解码器包括用于解码以逐行方式编码的宏块的解码单元(DEU),并且根据本发明,用于为每个场预测宏块呈现与每个场相关联的运动补偿向量的多实例单元(MIU) 构建与每个对应的运动补偿向量一样多的预测的整个宏块,并且通过分别取自每个对应的预测的整个宏块的重新交织域来重建所述场预测的宏块。 使用:移动设备
    • 5. 发明授权
    • Refined quadrilinear interpolation
    • 精细四边形插值
    • US07315660B2
    • 2008-01-01
    • US10477888
    • 2002-05-21
    • Stephane Edouard Valente
    • Stephane Edouard Valente
    • G06K9/32G03F3/08
    • H04N19/895
    • A method of concealing error within a surface delimited by edges and containing points with which erroneous values are associated. A new value is interpolated for at least one point on the surface from interpolation points defined in a projection step by the projections in orthogonal directions of the point to be interpolated onto the edges of the surface. Primary distances are determined between the point to be interpolated and the interpolation points. The sums of the primary distances in each of the directions are calculated, the sums being called secondary distances. The interpolation step provides for determination of the new value of a point to be interpolated from the values associated with the respective interpolation points weighted by weights calculated according to the respective primary distances and second distances.
    • 隐藏在由边界限定的表面内的错误的方法,并且包含与错误值相关联的点。 从投影步骤中定义的插值点通过投影在要内插的点的正交方向上的表面上的至少一个点插入新值。 在要插值的点和插值点之间确定主距离。 计算每个方向上的主要距离的总和,这些总和被称为二次距离。 内插步骤用于根据与根据各自的主距离和第二距离计算的重量加权的各个内插点相关联的值来确定要内插的点的新值。