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1.发明公开PROCEDES ET DISPOSITIFS DE CODAGE ET DE DECODAGE D'IMAGES METTANT EN OEUVRE DES MAILLAGES EMBOITES, PROGRAMME, SIGNAL ET APPLICATION CORRESPONDANTS 审中-公开方法和编码，解码的图像在嵌套MESH安排，相应的程序相应的信号，适当使用
公开(公告)号：EP1393573A1
公开(公告)日：2004-03-03
申请号：EP02747512.8
申请日：2002-06-06
申请人： FRANCE TELECOM
摘要： The invention concerns a method for encoding at least a source image using a hierarchical mesh defining at least two nested spaces corresponding each to a decomposition level of said meshing, which consists, at least at a decomposition level n (except the first decomposition level), in delivering only image coefficients expressed in a base of functions defined in a space orthogonal to the space corresponding to the preceding decomposition level n-1, said functions being selected so that said image coefficients enable to optimise for said decomposition level n the data already transmitted for the preceding decomposition level n-1, so as to produce a reconstructed image, representing said source image, with optimised restoration quality for said decomposition level n.
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3.发明授权PROCEDE DE SIMPLIFICATION D'UN MAILLAGE SOURCE, TENANT COMPTE DE LA COURBURE LOCALE ET DE LA DYNAMIQUE GEOMETRIQUE LOCALE, ET APPLICATIONS CORRESPONDANTES 有权方法对于局部曲率和局部几何形状，其应用领域QUELLNETZVEREINFAHCUNG
公开(公告)号：EP1141899B1
公开(公告)日：2005-04-20
申请号：EP00900557.0
申请日：2000-01-11
IPC分类号： G06T17/20
CPC分类号： G06T17/20
摘要： The invention concerns a method for simplifying a source mesh M formed by a plurality of surfaces defined by vertices, faces and orientations thereon, said method comprising a decimation step by merging the edges, which consists in associating with an edge to be decimated, defined by two apices, a single vertex, so as to obtain a simplified mesh M', said method comprising a step which consists in selecting one edge merger among all the possible edge mergers, taking into account: at least an information representing the locally defined dynamic geography.
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公开(公告)号：EP1292921A1
公开(公告)日：2003-03-19
申请号：EP01956590.2
申请日：2001-06-21
申请人： FRANCE TELECOM
IPC分类号： G06T17/20
CPC分类号： G06T17/20
摘要： The invention concerns the refinement of a triangular mesh representing a three-dimensional object (3D), said mesh consisting of an arrangement of vertices and triangular surfaces, each defined by three references to the vertices which it links, and having three edges each linking two of said vertices. The invention is characterised in that said method comprises a step which consists in selecting at least a region of interest, said mesh refinement being carried out locally on at least one region of interest.
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5.发明授权
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6.发明公开CODAGE ET DECODAGE PAR DES SYSTEMES DE FONCTIONS ITEREES (IFS) AVEC DES FONCTIONS DE COLLAGE OSCILLANTE ET UNE FONCTION DE COLLAGE SPATIAL 有权编码和解码与迭代函数系统（IFS）与周期函数和空间KOLLAGEN功能
公开(公告)号：EP1141896A1
公开(公告)日：2001-10-10
申请号：EP00900589.3
申请日：2000-01-14
摘要： The invention concerns an image-coding method using iterated function systems (IFS), said method comprising the following steps: partitioning an image I to be coded into a set of image regions, called destination regions; associating with each of said destination regions D a corresponding source region S and a collage function w such that w(S) is a good approximation of said destination region D; said collage function being broken down into: a spatial collage function wS, acting on the position and/or the geometry of said source region S, so as to produce a decimated source region S; and a mass collage function wM, acting on the contents of said decimated source region S, said mass collage function wM being an oscillating function.
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7.发明公开PROCEDE D'ESTIMATION DE MOUVEMENT A L'AIDE DE MAILLAGES DEFORMABLES 审中-公开VERFAHREN ZURBEWEGUNGSSCHÄTZUNGMITHILFE VON VERFORMBAREN NETZEN
公开(公告)号：EP1790169A1
公开(公告)日：2007-05-30
申请号：EP05805589.8
申请日：2005-09-06
申请人： France Telecom
摘要： The invention concerns a method which consists in analyzing a field of motion of images, estimated by using a first mesh, to detect a faulty area in the first mesh, and in locating a rupture line in said area; then generating a second mesh including a faultless part consisting of meshes of the first mesh outside the faulty area and two sub-meshes which overlap in a region including the rupture line. Each of the two sub-meshes includes respective meshes delimited by nodes including nodes shared with the faultless part, located at the boundary of the faulty area, and additional nodes not belonging to the faultless part, the rupture line being located between the respective nodes of the two sub-meshes shared with the faultless part. Said second mesh is used to finally estimate the field of motion in the group of images concerned.
摘要翻译： 本发明涉及一种方法，该方法包括分析通过使用第一网格估计的图像的运动场，以检测第一网格中的故障区域，以及在所述区域中定位断裂线; 然后生成第二网格，其包括由故障区域外的第一网格的网格构成的无缺陷部分和在包括断裂线的区域中重叠的两个子网格。 两个子网格中的每一个包括由包括位于故障区域的边界处的无故障部分共享的节点以及不属于无故障部分的附加节点的节点分隔的各个网格，断裂线位于 两个子网与无故障部分共享。 所述第二网格用于最终估计相关图像组中的运动场。
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公开(公告)号：EP1194895A1
公开(公告)日：2002-04-10
申请号：EP00942168.6
申请日：2000-06-07
IPC分类号： G06T9/00
CPC分类号： G06T9/001
摘要： The invention concerns a method for coding a mesh generation representing a three-dimensional object (3D), comprising a step which consists in coding the topology of said vertices and a step which consists in coding the position of said vertices, said topology coding step comprising: a) initialising (301) the coding process, comprising the determination of a germ surface and a germ pivot; b) conquering (302) the edges adjacent to the current pivot vertex (31), along a predetermined topological orientation (32); c) selecting (303) a new current pivot vertex, by selecting as pivot vertex a vertex whereof all the edges are marked ( an edge being marked when it has been conquered), or as complete vertex, when such a vertex is accessible, and otherwise the vertex next to the current pivot vertex. The invention also concerns a corresponding decoding method.
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公开(公告)号：EP1181668A1
公开(公告)日：2002-02-27
申请号：EP00931344.6
申请日：2000-05-24
IPC分类号： G06T9/00
摘要： The invention relates to an image coding method, comprising the following steps for a domain corresponding to at least one portion of an image: a minimal triangular partition covering said domain is defined (21); a square matrix is associated with each of said source triangles by means of a first reversible transformation (22,23), whereby said matrix represents a specific source triangle (31); a second reversible decorrelation transformation is applied (24) to each square matrix, resulting in transformed matrixes. The inventive method can be used in isolation or as a supplement to another coding of the hierarchic type, for example. The invention also relates to corresponding decoding.
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10.发明公开PROCEDE DE CODAGE D'UN MAILLAGE SOURCE, AVEC OPTIMISATION DE LA POSITION D'UN SOMMET RESULTANT D'UNE FUSION D'ARETE, ET APPLICATIONS CORRESPONDANTES 有权电源用编码算法研究与优化位置的一个角落所产生从一个角落里结CLEAR及其应用
公开(公告)号：EP1121665A1
公开(公告)日：2001-08-08
申请号：EP99949060.0
申请日：1999-10-15
IPC分类号： G06T17/20
CPC分类号： G06T17/20
摘要： The invention concerns a method for simplifying a mesh source M using a decimation step by edge fusion, and comprising a pseudo-optimisation step following said decimation step by ridge fusion, positioning the vertex resulting from said fusion so as to reduce the geometric deviation between said source mesh M and said simplified mesh M'. Advantageously, said step consists in counting the sharp edges around two vertices forming the edge to be merged, and in distinguishing between the two following situations: if the number of sharp edges are the same around two vertices, the vertex resulting from the fusion is set in the middle of the segment joining said vertices (42, 44); if the number of edges are different, the vertex resulting from the fusion is set on the vertex presenting the highest number of sharp edges (43, 45).
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