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    • 1. 发明授权
    • Method and apparatus for depth-related information propagation
    • 深度相关信息传播的方法和装置
    • US08854425B2
    • 2014-10-07
    • US12669828
    • 2008-07-18
    • Christiaan Varekamp
    • Christiaan Varekamp
    • H04N13/00H04N13/02G06T5/00
    • G06T5/005G06T2207/10016G06T2207/10024G06T2207/10028H04N13/128H04N13/261
    • The present invention relates to an apparatus for and a method of propagating depth-related information from a first depth-map (810) associated with a first image (820) to a second depth-map (860) associated with a second image (830), the first and second image being temporally proximate images in an image sequence. The method comprises generating an intermediate depth-map (840) associated with the second image (830) by propagating depth values from the first depth-map (810) to the intermediate depth-map (840) using pixels of the first image (820) and the second image (830), and generating a motion vector (850) using information comprising depth values in a spatial region around a first location in the first depth-map (810) and depth values in a spatial region around a second location in the intermediate depth-map (840) and generating a depth value for the second location in the second depth-map (860) using information comprising the motion vector (850) and the first depth-map (810).
    • 本发明涉及一种将深度相关信息从与第一图像(820)相关联的第一深度图(810)传播到与第二图像相关联的第二深度图(860)的装置和方法(830 ),第一和第二图像在时间上靠近图像序列中的图像。 该方法包括通过使用第一图像(820)的像素将深度值从第一深度图(810)传播到中间深度图(840)来生成与第二图像(830)相关联的中间深度图(840) )和第二图像(830),并且使用包括在第一深度图(810)中的第一位置周围的空间区域中的深度值的信息和在第二位置周围的空间区域中的深度值来生成运动矢量(850) 在中间深度图(840)中,并且使用包括运动矢量(850)和第一深度图(810)的信息来生成第二深度图(860)中的第二位置的深度值。
    • 3. 发明申请
    • IMAGE SEGMENTATION
    • 图像分割
    • US20110243443A1
    • 2011-10-06
    • US13133467
    • 2009-12-03
    • Christiaan Varekamp
    • Christiaan Varekamp
    • G06K9/34
    • G06T7/12G06T7/11G06T2207/10016G06T2207/20096
    • A device for segmenting an image comprises a user input (301, 305, 307) for receiving segment indications and boundary indications for the image. Each segment indication identifies a set of pixel regions and a relationship between the set of pixel regions and an associated segment class of a plurality of segment classes. Each boundary indication identifies a boundary between pixels belonging to different segment classes. A segmentation processor (309) then segments the image into the plurality of segment classes in response to both the number of segment indications and the number of boundary indications. Specifically, a propagation of values linking the pixel regions to segment classes are propagated based on the segment indications with the propagation being constrained (e.g. attenuated or blocked) by the boundary indications. The invention may improve or facilitate interactive image segmentation e.g. for frames of a video signal.
    • 用于分割图像的装置包括用于接收图像的片段指示和边界指示的用户输入(301,305,307)。 每个段指示标识一组像素区域以及该组像素区域与多个段类别的相关段类别之间的关系。 每个边界指示标识属于不同段类别的像素之间的边界。 然后,分段处理器(309)响应于段指示的数量和边界指示的数量将图像分割成多个段类别。 具体地,基于区段指示传播将像素区域链接到段类别的传播,其中传播被边界指示约束(例如衰减或阻挡)。 本发明可以改进或促进交互式图像分割,例如 用于视频信号的帧。
    • 4. 发明申请
    • IMAGE BASED 3D VIDEO FORMAT
    • 基于图像的3D视频格式
    • US20110242279A1
    • 2011-10-06
    • US13139365
    • 2009-12-10
    • Peter-Andre RedertReinier B.M. Klein GunnewiekBartolomeus W.D. SonneveldtChristiaan Varekamp
    • Peter-Andre RedertReinier B.M. Klein GunnewiekBartolomeus W.D. SonneveldtChristiaan Varekamp
    • H04N13/00H04N7/26
    • H04N19/46H04N13/194H04N19/597
    • The present invention relates to a method and device (580) for encoding three-dimensional video data, the device comprising: a first encoder (505) arranged to encode multiple simultaneous views (501) of a scene from different viewpoints; a second encoder (510) arranged to encode depth information of the scene and a third encoder (515) arranged to encode additional information indicative of a relationship between the multiple views and the depth information and a combiner (520) arranged to combine the encoded information into a representation (513) of the three-dimensional video data. The additional information comprises a group classifier indicating whether or not the depth information and at least one of the multiple views correspond to the same source material for, when corresponding, using the depth information and the at least one of the multiple views to render further views of the scene from further different viewpoints. The invention further related to a method and device (585) for decoding three-dimensional video data, as well as a computer program product comprising program instructions for executing a method according to the present invention.
    • 本发明涉及一种用于对三维视频数据进行编码的方法和装置(580),该装置包括:第一编码器(505),用于从不同的视点编码场景的多个同时视图(501); 布置成编码场景的深度信息的第二编码器(510)和被配置为编码表示多个视图和深度信息之间的关系的附加信息的第三编码器(515),以及组合器(520),其被组合以编码信息 成为三维视频数据的表示(513)。 所述附加信息包括指示深度信息是否是深度信息的组,并且所述多个视图中的至少一个视图对应于相同的源材料,当对应时,使用所述深度信息和所述至少一个所述多个视图来呈现进一步的视图 从不同的观点出发, 本发明还涉及用于解码三维视频数据的方法和设备(585),以及包括用于执行根据本发明的方法的程序指令的计算机程序产品。
    • 5. 发明申请
    • Image object processing
    • 图像对象处理
    • US20060251337A1
    • 2006-11-09
    • US10567219
    • 2004-08-02
    • Peter RedertChristiaan Varekamp
    • Peter RedertChristiaan Varekamp
    • G06K9/36
    • G06T7/564
    • An apparatus (200) comprises a simple detector (201) for detecting a plurality of image points (105, 107, 109, 111) associated with at least one object of the at least one image. The detector does not differentiate between different types of image points. The detector (201) is coupled to a grouping processor (203) which groups the plurality of image points (105, 107, 109, 111) into a group of object points (105, 107), a group of junction points (111) and a group of falsely detected points (109). The apparatus further comprises a processor arrangement 209 for individually processing the image points of the group of object points (105, 107) and the group of junction points (111). The object point process may generate depth information based on dynamic characteristics and the junction point process may generate depth information based on static characteristics. Improved depth information may thus be achieved and a simplified detector may be employed.
    • 一种装置(200)包括用于检测与所述至少一个图像的至少一个对象相关联的多个图像点(105,107,109,111)的简单检测器(201)。 检测器不区分不同类型的图像点。 检测器(201)耦合到分组处理器(203),其将多个图像点(105,107,109,111)分组成一组对象点(105,107),一组连接点(111) 和一组错误检测点(109)。 该装置还包括处理器装置209,用于单独处理该组对象点(105,107)和该组连接点(111)的图像点。 物点过程可以基于动态特性生成深度信息,并且连接点过程可以基于静态特性生成深度信息。 因此可以实现改进的深度信息,并且可以采用简化的检测器。
    • 6. 发明授权
    • Unit for and method of segmentation using average homogeneity
    • 使用平均均匀性的单位和分割方法
    • US08582882B2
    • 2013-11-12
    • US10503424
    • 2003-01-23
    • Fabian Edgar ErnstChristiaan Varekamp
    • Fabian Edgar ErnstChristiaan Varekamp
    • G06K9/34
    • G06T7/215G06T2207/10016
    • A segmentation unit included an assignment unit configured to assign a first pixel of a first image of a sequence of images to a segment comprises an assignment unit, and to assign a first homogeneity value to the first pixel on basis of the first image. An averaging unit is configured to calculate an average homogeneity value for the first pixel by averaging the first homogeneity value and a second homogeneity value being determined for a second pixel of a second image of the sequence of images. The first and second pixels are related by a motion vector. A comparing unit is configured to compare the average homogeneity value with a threshold in order to assign the first pixel to the segment.
    • 分割单元包括分配单元,其被配置为将图像序列的第一图像的第一像素分配给段包括分配单元,并且基于第一图像将第一均匀性值分配给第一像素。 平均单元被配置为通过对第一均匀性值求平均值和为图像序列的第二图像的第二像素确定的第二均匀性值来计算第一像素的平均均匀性值。 第一和第二像素通过运动矢量相关。 比较单元被配置为将平均均匀性值与阈值进行比较,以便将第一像素分配给段。
    • 7. 发明申请
    • METHOD AND IMAGE-PROCESSING DEVICE FOR HOLE FILLING
    • 用于孔填充的方法和图像处理装置
    • US20100289815A1
    • 2010-11-18
    • US12863799
    • 2009-01-21
    • Christiaan VarekampReinier Bernardus Maria Klein Gunnewiek
    • Christiaan VarekampReinier Bernardus Maria Klein Gunnewiek
    • G09G5/00G06K9/40
    • G06T5/005G06T2207/10016G06T2207/20192
    • The present invention relates to an image-processing device and a method of assigning pixel values to adjacent pixel locations in an image (705) having unassigned pixel values. The method comprises the steps of generating first propagation pixel values (730) and first propagation weights (735) for propagating the first propagation pixel values (730) along a first direction towards the adjacent pixel locations by: generating the first propagation pixel values (730) for propagation to the adjacent pixel locations in the first direction, the first propagation pixel values (730) being based at least on assigned pixel values in a first region adjacent to the unassigned pixel locations; generating first propagation weights (735) for the first propagation pixel values (730) to account for discontinuities in pixel values of assigned pixel values in a second region adjacent to the hole along the first direction, such that the occurrence of a discontinuity in said assigned pixel values along the first direction results in lower first propagation weights (735); and assigning pixel values to the adjacent pixel locations based at least in part on the first propagation pixel values (730) and first propagation weights (735). The invention further relates to a computer program and a computer program product comprising the program for implementing the method.
    • 本发明涉及一种图像处理装置和将像素值分配给具有未分配像素值的图像(705)中的相邻像素位置的方法。 该方法包括以下步骤:通过以下步骤:产生第一传播像素值(730)和第一传播权重(735),用于通过以下步骤:沿着第一方向向相邻像素位置传播第一传播像素值(730):产生第一传播像素值(730 ),用于传播到所述第一方向上的相邻像素位置,所述第一传播像素值(730)至少基于与所述未分配像素位置相邻的第一区域中分配的像素值; 为所述第一传播像素值(730)产生第一传播权重(735)以解决沿着所述第一方向与所述孔相邻的第二区域中所分配的像素值的像素值的不连续性,使得所述分配的 沿着第一方向的像素值导致较低的第一传播权重(735); 以及至少部分地基于所述第一传播像素值(730)和所述第一传播权重(735)将像素值分配给所述相邻像素位置。 本发明还涉及包括用于实现该方法的程序的计算机程序和计算机程序产品。
    • 9. 发明申请
    • IMAGE ENHANCEMENT
    • 图像增强
    • US20100002948A1
    • 2010-01-07
    • US12443728
    • 2007-10-02
    • Om Prakash GangwalEric Peter FunkeChristiaan VarekampMickael Stephane Bernard George Bouvier
    • Om Prakash GangwalEric Peter FunkeChristiaan VarekampMickael Stephane Bernard George Bouvier
    • G06K9/40
    • G06T7/579H04N13/128H04N13/261
    • The present invention relates to an image enhancement unit and a method of enhancing a first structure (S1) of samples into a second structure (S2) of samples, the first and the second structure both representing a first property of a scene and having a first resolution, based on a third structure (S3) of samples representing a second property and having the first resolution, the first property and the second property respectively representing different properties of substantially the same scene. The method comprising generating a fourth structure (S4) of samples representing the first property, the fourth structure (S4) of samples having a second resolution lower than the first resolution, by down-scaling first samples of the first structure (S1) of samples to form the samples of the fourth structure (S4) of samples. The method further comprising up-scaling the fourth structure (S4) of samples representing the first property, into the second structure (S2) based on the third structure (S3) of samples, the up-scaling comprising assigning weight factors to respective samples of the fourth structure (S4) of samples based on samples of the third structure (S3) of samples; and computing samples of the second structure (S2) of samples using the samples of the fourth structure (S4) of samples and their respectively assigned weight factors. The invention further relates to an image-processing unit comprising an image enhancement unit according to the invention as well as to a computer program product.
    • 本发明涉及一种将样本的第一结构(S1)增强为样本的第二结构(S2)的图像增强单元和方法,所述第一和第二结构都表示场景的第一属性,并且具有第一 分辨率,基于代表第二属性并具有第一分辨率的第三结构(S3),第一属性和第二属性分别表示基本上相同的场景的不同属性。 该方法包括:通过对样本的第一结构(S1)的第一样本进行缩小,生成表示第一属性的样本的第四结构(S4),具有比第一分辨率低的第二分辨率的样本的第四结构(S4) 以形成样品的第四结构(S4)的样品。 所述方法还包括基于样本的第三结构(S3),将表示第一属性的样本的第四结构(S4)扩展到第二结构(S2)中,所述上调包括将权重因子分配给 基于样品的第三结构(S3)的样品的第四结构(S4) 以及使用样本的第四结构(S4)的样本及其分配的权重因子来计算样本的第二结构(S2)的样本。 本发明还涉及包括根据本发明的图像增强单元以及计算机程序产品的图像处理单元。
    • 10. 发明申请
    • RENDERING AN OUTPUT IMAGE
    • 渲染输出图像
    • US20090115780A1
    • 2009-05-07
    • US12280377
    • 2007-02-16
    • Christiaan VarekampWilhelmus Hendrikus Alfonsus Bruls
    • Christiaan VarekampWilhelmus Hendrikus Alfonsus Bruls
    • G06T15/00
    • G06T15/205H04N13/20H04N13/296
    • A method of rendering an output image (202) on basis of an input image (200) and a corresponding matrix of depth related data (204), the input image (200) corresponding to a first viewpoint and the output image (202) corresponding to a second viewpoint being different from the first viewpoint, is disclosed. The method comprises: computing edges (212,312) in the matrix of depth related data (204), by computing derivatives of the depth related data in a predetermined direction (X); computing a measure of variation in pixel values in regions of the input image (200) corresponding to neighborhoods of the edges (212,312), the neighborhoods located at the background side of the edges (212,312); and computing the output image (202) by shifting respective pixel values of the input image (200) in the predetermined direction (X) on basis of scaled depth related data, wherein scaling is such that a relative large measure of variation results in a relative large reduction of depth.
    • 一种基于输入图像(200)和深度相关数据(204)的相应矩阵渲染输出图像(202)的方法,对应于第一视点的输入图像(200)和对应于输出图像的输出图像(202) 涉及与第一观点不同的第二观点。 该方法包括:通过计算预定方向(X)上的深度相关数据的导数来计算深度相关数据(204)的矩阵中的边缘(212,312); 计算对应于位于边缘(212,312)的背景侧的边缘(212,312)的邻域的输入图像(200)的区域中的像素值的变化的度量; 并且通过基于缩放的深度相关数据移动在预定方向(X)上输入图像(200)的各个像素值来计算输出图像(202),其中缩放使得相对较大的变化量度导致相对 大幅减少深度。