Method and apparatus for the rigid and non-rigid registration of 3D shapes
    1.
    发明授权
    Method and apparatus for the rigid and non-rigid registration of 3D shapes 有权
    3D形状的刚性和非刚性配准的方法和装置

    公开(公告)号:US07801708B2

    公开(公告)日:2010-09-21

    申请号:US11462834

    申请日:2006-08-07

    IPC分类号: G06F7/60 G06K9/00 G06T15/00

    摘要: A method for registering two three-dimensional shapes is disclosed whereby the two shapes are represented as zero level set of signed distance functions and the energy between these two functions is minimized. In a first embodiment, two undetailed ear impression models are rigidly registered with each other. In another embodiment, a detailed ear impression is initially aligned with an undetailed ear impression model and, then, the detailed ear impression model is rigidly registered with the undetailed ear impression model as a function of the signed distance functions. In accordance with another embodiment, an undetailed ear impression model is non-rigidly registered with a template ear impression model as a function of the signed distance functions.

    摘要翻译: 公开了一种用于记录两个三维形状的方法,其中两个形状被表示为有限距离函数的零级集合,并且这两个函数之间的能量被最小化。 在第一实施例中,两个不详细的耳朵印象模型彼此刚性地对齐。 在另一个实施例中,详细的耳朵印象最初与未详细的耳朵印象模型对准,然后,详细的耳朵印象模型与未签名的耳朵印象模型刚性地记录为有符号距离函数的函数。 根据另一个实施例,根据签名的距离函数,未详细地将耳朵印象模型与模板耳朵印象模型非刚性地对齐。

    Method and apparatus for the registration of 3D ear impression models
    2.
    发明授权
    Method and apparatus for the registration of 3D ear impression models 失效
    用于注册3D耳朵印象模型的方法和装置

    公开(公告)号:US08086427B2

    公开(公告)日:2011-12-27

    申请号:US11462804

    申请日:2006-08-07

    IPC分类号: G06F7/60 G06K9/00 G06T15/00

    摘要: A method of designing hearing aid molds is disclosed whereby two shapes corresponding to graphical images of ear impressions are registered with each other to facilitate joint processing of the hearing aid design. In a first embodiment, a first graphical representation of a first ear impression is received and a feature, such as the aperture of the ear impression, is identified on that graphical model. A first vector is generated that represents the orientation and shape of that first feature. The three-dimensional translation and rotation of that first vector are determined that are necessary to align the first vector with a second vector representing the orientation and a shape of a feature, once again such as the aperture, of a second ear impression. In another embodiment, this alignment is then refined by minimizing the sum of the distances between points on the first and second graphical representations.

    摘要翻译: 公开了一种设计助听器模具的方法,其中对应于耳朵印象的图形图像的两个形状彼此对准以便于助听器设计的联合处理。 在第一实施例中,接收第一耳朵印象的第一图形表示,并且在该图形模型上识别诸如耳朵印象的孔的特征。 生成表示该第一特征的取向和形状的第一向量。 确定该第一矢量的三维平移和旋转是必要的,以使第一矢量与代表第二耳朵印象的特征的取向和形状的第二矢量(例如孔)对齐。 在另一个实施例中,然后通过最小化第一和第二图形表示上的点之间的距离之和来改进该对准。

    Method and apparatus for the rigid registration of 3D ear impression shapes with skeletons
    4.
    发明授权
    Method and apparatus for the rigid registration of 3D ear impression shapes with skeletons 失效
    3D耳朵印象形状与骨骼刚性配准的方法和装置

    公开(公告)号:US07991594B2

    公开(公告)日:2011-08-02

    申请号:US11462856

    申请日:2006-08-07

    IPC分类号: G06F7/60 G06K9/00 G06T15/00

    摘要: A method of designing hearing aid molds is disclosed whereby skeletons, or simplified models, of two ear impressions are used to register the graphical representations of the molds to facilitate the joint design of hearing aid shells. The center points of at least a portion of contour lines on the surface of each ear impression are identified. Then, for each ear impression, by connecting these center points to each adjacent center point, a skeleton that represents a simplified model of an ear impression is generated. Vectors describing the distance and direction from the points of each skeleton to an anatomical feature of each ear impression are identified to obtain a correspondence between the points of each skeleton. Three-dimensional translations and rotations of a feature vector of at least one of the skeletons are determined to achieve alignment of the skeleton of one ear impression with the skeleton of another impression.

    摘要翻译: 公开了一种设计助听器模具的方法,其中使用两个耳朵印模的骨架或简化模型来注册模具的图形表示以便于助听器外壳的联合设计。 识别每个耳朵印象的表面上的轮廓线的至少一部分的中心点。 然后,对于每个耳朵的印象,通过将这些中心点连接到每个相邻的中心点,生成表示耳朵印象的简化模型的骨架。 识别描述从每个骨骼的点到每个耳朵印象的解剖特征的距离和方向的向量以获得每个骨架的点之间的对应关系。 确定至少一个骨骼的特征向量的三维平移和旋转以实现一个耳朵的骨骼与另一个印象的骨骼的对准。

    Active polyhedron for 3D image segmentation
    5.
    发明授权
    Active polyhedron for 3D image segmentation 失效
    用于3D图像分割的活动多面体

    公开(公告)号:US07333105B2

    公开(公告)日:2008-02-19

    申请号:US11067151

    申请日:2005-02-24

    IPC分类号: G06T17/00 G06K9/34

    CPC分类号: G06K9/6207 G06K9/00214

    摘要: A method for three dimensional image segmentation of a volume of interest includes providing a three dimensional image of the volume of interest, providing an initial polyhedron having a plurality of mesh vertices within the three dimension image and determining an image-based speed at each vertex of the polyhedron using an ordinary differential equation (ODE) that describes the vertex motion of the polyhedron. The method further includes determining a regularization term at each vertex of the polyhedron, updating the plurality of mesh vertices of the polyhedron, integrating the image-based speed of each vertex over a face of the polyhedron, and determining an output polyhedron approximating a shape of the volume of interest.

    摘要翻译: 用于感兴趣体积的三维图像分割的方法包括提供感兴趣体积的三维图像,提供在三维图像内具有多个网格顶点的初始多面体,并且确定每个顶点处的基于图像的速度 多面体使用描述多面体顶点运动的常微分方程(ODE)。 该方法还包括确定多面体的每个顶点处的正则化项,更新多面体的多个网格顶点,将多个顶点的每个顶点的基于图像的速度整合在多面体的面上,以及确定接近多面体的形状的输出多面体 感兴趣的数量。

    Automatic binaural shell modeling for hearing aids
    7.
    发明授权
    Automatic binaural shell modeling for hearing aids 有权
    用于助听器的自动双耳壳建模

    公开(公告)号:US07286679B2

    公开(公告)日:2007-10-23

    申请号:US10739732

    申请日:2003-12-18

    IPC分类号: H04R25/00

    摘要: A system and method for modeling binaural shells for hearing aids, wherein the system is configured to load data associated with a first and a second ear shell. The system is further configured to register the data associated with the first and the second ear shells and process the first ear shell and the second ear shells, wherein the processing on the first ear shell is automatically performed on the second ear shell.

    摘要翻译: 一种用于对用于助听器的双耳壳进行建模的系统和方法,其中所述系统被配置为加载与第一耳壳和第二耳壳相关联的数据。 该系统还被配置为登记与第一耳壳和第二耳壳相关联的数据并处理第一耳壳和第二耳壳,其中在第二耳壳上自动执行对第一耳壳的处理。

    Interactive binaural shell modeling for hearing aids
    8.
    发明授权
    Interactive binaural shell modeling for hearing aids 有权
    用于助听器的互动双耳壳建模

    公开(公告)号:US07084870B2

    公开(公告)日:2006-08-01

    申请号:US10739733

    申请日:2003-12-18

    IPC分类号: G06T17/00

    摘要: A system and method for modeling binaural shells for hearing aids, wherein the system is configured to load data associated with a first and a second ear shell. The system is further configured to register the data associated with the first and the second ear shells and process the first ear shell. The system is also configured to store data associated with processing the first ear shell and then map the data associated with processing the first ear shell to the second ear shell. Subsequently, the mapped second ear shell is interactively adjusted by an operator to compensate for an inconsistency in the mapped second ear shell.

    摘要翻译: 一种用于对用于助听器的双耳壳进行建模的系统和方法,其中所述系统被配置为加载与第一耳壳和第二耳壳相关联的数据。 该系统还被配置为登记与第一和第二耳壳相关联的数据并处理第一耳壳。 该系统还被配置为存储与处理第一耳壳相关联的数据,然后将与将第一耳壳处理相关联的数据映射到第二耳壳。 随后,映射的第二耳壳由操作者交互地调整以补偿映射的第二耳壳中的不一致。

    Mutual information regularized Bayesian framework for multiple image restoration
    9.
    发明授权
    Mutual information regularized Bayesian framework for multiple image restoration 失效
    相互信息正则化贝叶斯框架用于多个图像恢复

    公开(公告)号:US07684643B2

    公开(公告)日:2010-03-23

    申请号:US11252334

    申请日:2005-10-17

    摘要: A method for multiple image restoration includes receiving a plurality of images corrupted by noise, and initializing a reduced noise estimate of the plurality of images. The method further includes estimating a probability of distributions of noise around each pixel and the probability of the signal, estimating mutual information between noise on the plurality of images based on the probabilities of distributions of noise around each pixel and the joint distribution of noise, and updating each pixel within a search range to determine a restored image by reducing the mutual information between the noise on the plurality of images.

    摘要翻译: 一种用于多重图像恢复的方法包括:接收由噪声破坏的多个图像,以及初始化所述多个图像的降低的噪声估计。 该方法还包括估计每个像素周围的噪声分布概率和信号的概率,基于每个像素周围的噪声分布的概率和噪声的联合分布来估计多个图像上的噪声之间的相互信息;以及 更新搜索范围内的每个像素以通过减少多个图像上的噪声之间的相互信息来确定恢复的图像。

    System and method for efficient feature estimation for medical images
    10.
    发明授权
    System and method for efficient feature estimation for medical images 失效
    用于医学图像的有效特征估计的系统和方法

    公开(公告)号:US07596282B2

    公开(公告)日:2009-09-29

    申请号:US11343128

    申请日:2006-01-30

    IPC分类号: G06K9/64 G06K9/40

    摘要: A method for estimating feature values from a digitized image includes calculating a gradient of an image, defining a filter weighting function, convolving the gradient with the filter weighting function, integrating over a subdomain of the convolved gradient to calculate components of a cost matrix Φ, wherein the cost matrix minimizes a distance metric in a frequency domain of the image, solving for the eigenvalues of the cost matrix, and calculating one or more features from the cost matrix eigenvalues. One or more predesigned bandpass filters can be applied to the image, and cost matrix eigenvalues are analyzed to select one or more appropriate bandpass filters to be applied to the image.

    摘要翻译: 一种用于从数字化图像估计特征值的方法包括计算图像的梯度,定义滤波器加权函数,将该梯度与滤波器加权函数相加,在卷积梯度的子域上积分以计算成本矩阵Phi的分量, 其中所述成本矩阵最小化图像的频域中的距离度量,求解所述成本矩阵的特征值,以及从所述成本矩阵特征值计算一个或多个特征。 可以将一个或多个预先设计的带通滤波器应用于图像,并且分析成本矩阵特征值以选择要应用于图像的一个或多个适当的带通滤波器。