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    • 1. 发明授权
    • Method and apparatus for estimating a pose
    • 用于估计姿势的方法和装置
    • US09159134B2
    • 2015-10-13
    • US14365222
    • 2011-12-16
    • Thomas MartinetzKristian EhlersFabian TimmErhardt BarthSascha Klement
    • Thomas MartinetzKristian EhlersFabian TimmErhardt BarthSascha Klement
    • G06K9/00G06T7/00G06T7/20
    • G06T7/0046G06T7/251G06T7/75G06T2207/10028G06T2207/20044G06T2207/20081G06T2207/30196
    • The invention relates to a real time-capable analysis of a sequence of electronic images for estimating the pose of a movable object captured by means of the images. The invention further relates to implementing the invention in software and, in this connection, to a computer-readable medium that stores commands, the execution of which causes the method according to the invention to be carried out. The invention proceeds from a skeleton model, which is described by a small number of nodes in 3D space and permits a good data compression of the image information when the co-ordinates of the nodes describe at any time the position of predetermined parts of the moving object. The skeleton model simultaneously represents previous knowledge of the object, by defining e.g. node pairs and optionally also node triplets in the skeleton model that describe cohesive object parts or optionally object surfaces, which are contained in the measured 2½-D image information, i.e. are visible to the camera. The skeleton model is to be fitted quickly and accurately into the image information. The fitting is effected between two images of an image sequence by the continuous displacement of the nodes and the continuous updating of the skeleton model.
    • 本发明涉及用于估计通过图像捕获的可移动物体的姿态的电子图像序列的实时分析。 本发明还涉及以软件实现本发明,并且在这方面,涉及存储指令的计算机可读介质,其执行导致执行根据本发明的方法。 本发明从由3D空间中的少量节点描述的骨架模型进行,并且当节点的坐标在任何时刻描述移动的预定部分的位置时允许图像信息的良好数据压缩 目的。 骨架模型同时表示对象的先前知识,通过定义例如 骨架模型中的节点对和可选地还包括节点三联体,其描述包含在所测量的2 1/2-D图像信息中的粘性对象部分或可选的对象表面,即对于相机是可见的。 骨架模型要快速,准确地适应图像信息。 通过节点的连续位移和骨架模型的连续更新,对图像序列的两个图像进行拟合。
    • 2. 发明申请
    • METHOD AND APPARATUS FOR ESTIMATING A POSE
    • 评估方法和装置
    • US20140328519A1
    • 2014-11-06
    • US14365222
    • 2011-12-16
    • Thomas MartinetzKristian EhlersFabian TimmErhardt BarthSascha Klement
    • Thomas MartinetzKristian EhlersFabian TimmErhardt BarthSascha Klement
    • G06T7/00G06T7/20
    • G06T7/0046G06T7/251G06T7/75G06T2207/10028G06T2207/20044G06T2207/20081G06T2207/30196
    • The invention relates to a real time-capable analysis of a sequence of electronic images for estimating the pose of a movable object captured by means of the images. The invention further relates to implementing the invention in software and, in this connection, to a computer-readable medium that stores commands, the execution of which causes the method according to the invention to be carried out. The invention proceeds from a skeleton model, which is described by a small number of nodes in 3D space and permits a good data compression of the image information when the co-ordinates of the nodes describe at any time the position of predetermined parts of the moving object. The skeleton model simultaneously represents previous knowledge of the object, by defining e.g. node pairs and optionally also node triplets in the skeleton model that describe cohesive object parts or optionally object surfaces, which are contained in the measured 2½-D image information, i.e. are visible to the camera. The skeleton model is to be fitted quickly and accurately into the image information. The fitting is effected between two images of an image sequence by the continuous displacement of the nodes and the continuous updating of the skeleton model.
    • 本发明涉及用于估计通过图像捕获的可移动物体的姿态的电子图像序列的实时分析。 本发明还涉及以软件实现本发明,并且在这方面,涉及存储指令的计算机可读介质,其执行导致执行根据本发明的方法。 本发明从由3D空间中的少量节点描述的骨架模型进行,并且当节点的坐标在任何时刻描述移动的预定部分的位置时允许图像信息的良好数据压缩 目的。 骨架模型同时表示对象的先前知识,通过定义例如 骨架模型中的节点对和可选地还包括节点三联体,其描述包含在所测量的2 1/2-D图像信息中的粘性对象部分或可选的对象表面,即对于相机是可见的。 骨架模型要快速,准确地适应图像信息。 通过节点的连续位移和骨架模型的连续更新,对图像序列的两个图像进行拟合。
    • 4. 发明授权
    • Method for the real-time-capable, computer-assisted analysis of an image sequence containing a variable pose
    • 用于对包含可变姿态的图像序列进行实时性,计算机辅助分析的方法
    • US09058661B2
    • 2015-06-16
    • US13319968
    • 2010-05-06
    • Martin HakerErhardt BarthThomas Martinetz
    • Martin HakerErhardt BarthThomas Martinetz
    • G06T17/00G06T7/00G06K9/00
    • G06T7/0046G06K9/00355G06T7/75
    • The invention relates to a method for the real-time-capable, computer-assisted analysis of an image sequence of an object consisting of elements that can be moved relative to each other and are interconnected, said sequence containing a variable pose, wherein the individual images of the image sequence are recorded by way of a time-of-flight (TOF) camera such that said images can be processed by a computer, and contain brightness and distance data as functions of the pixel coordinates of the camera for each image of the sequence, comprising the following steps: a. Capturing the pixels of an individual image forming the object, b. calculating a three-dimensional (3D) point cloud in a virtual space, said point cloud representing the surface of the object that is visible to the camera, by a computational projection of object-depicting pixels in such a space, while taking captured distance data to the object into consideration, c. fitting a model of the object consisting of nodes and edges into the computer-generated 3D point cloud for the individual images, wherein the nodes represent a selection of elements of the object and the edges represent the connections of said elements amount each other, d. iteratively updating all node positions by applying a learning rule for training a self-organizing map having a previously defined number of randomly selected dots of the point cloud, e. repeating steps a. to d. for each subsequent individual image of the sequence, wherein for the fitting in step c. the result of step e. of the preceding image is used in each case, and f. determining the varying pose from the positions of predetermined nodes of the model which have been captured in at least representative images of the image sequence.
    • 本发明涉及一种用于实时能力的计算机辅助分析对象的图像序列的方法,所述对象由可相对于彼此移动并被互连的元素组成,所述序列包含可变姿态,其中所述个体 通过飞行时间(TOF)照相机记录图像序列的图像,使得所述图像可以由计算机处理,并且包含亮度和距离数据作为相机的每个图像的像素坐标的函数 该序列包括以下步骤:a。 捕获形成对象的单个图像的像素,b。 通过在这样的空间中的对象描绘像素的计算投影来计算虚拟空间中的三维(3D)点云,所述点云表示对于相机可见的对象的表面,同时获取捕获的距离数据 考虑到对象,c。 将由节点和边缘组成的对象的模型拟合到用于各个图像的计算机生成的3D点云中,其中节点表示对象的元素的选择,并且边缘表示所述元素的连接彼此相互重叠。 通过应用用于训练具有先前定义的点云随机选择的点数的自组织图的学习规则来迭代地更新所有节点位置, 重复步骤a。 到d 对于序列的每个随后的单独图像,其中对于步骤c中的拟合。 步骤e的结果。 在每种情况下使用上述图像,f。 从已经在图像序列的至少代表性图像中捕获的模型的预定节点的位置确定变化的姿势。
    • 5. 发明申请
    • Method for the Real-Time-Capable, Computer-Assisted Analysis of an Image Sequence Containing a Variable Pose
    • 用于实时性,计算机辅助分析包含可变姿态的图像序列的方法
    • US20140098093A2
    • 2014-04-10
    • US13319968
    • 2010-05-06
    • Martin HakerErhardt BarthThomas Martinetz
    • Martin HakerErhardt BarthThomas Martinetz
    • G06T17/00
    • G06T7/0046G06K9/00355G06T7/75
    • The invention relates to a method for the real-time-capable, computer-assisted analysis of an image sequence of an object consisting of elements that can be moved relative to each other and are interconnected, said sequence containing a variable pose, wherein the individual images of the image sequence are recorded by way of a time-of-flight (TOF) camera such that said images can be processed by a computer, and contain brightness and distance data as functions of the pixel coordinates of the camera for each image of the sequence, comprising the following steps: a. Capturing the pixels of an individual image forming the object, b. calculating a three-dimensional (3D) point cloud in a virtual space, said point cloud representing the surface of the object that is visible to the camera, by a computational projection of object-depicting pixels in such a space, while taking captured distance data to the object into consideration, c. fitting a model of the object consisting of nodes and edges into the computer-generated 3D point cloud for the individual images, wherein the nodes represent a selection of elements of the object and the edges represent the connections of said elements amount each other, d. iteratively updating all node positions by applying a learning rule for training a self-organizing map having a previously defined number of randomly selected dots of the point cloud, e. repeating steps a. to d. for each subsequent individual image of the sequence, wherein for the fitting in step c. the result of step e. of the preceding image is used in each case, and f. determining the varying pose from the positions of predetermined nodes of the model which have been captured in at least representative images of the image sequence.
    • 本发明涉及一种用于实时能力的计算机辅助分析对象的图像序列的方法,所述对象由可相对于彼此移动并被互连的元素组成,所述序列包含可变姿态,其中所述个体 通过飞行时间(TOF)照相机记录图像序列的图像,使得所述图像可以由计算机处理,并且包含亮度和距离数据作为相机的每个图像的像素坐标的函数 该序列包括以下步骤:a。 捕获形成对象的单个图像的像素,b。 通过在这样的空间中的对象描绘像素的计算投影来计算虚拟空间中的三维(3D)点云,所述点云表示对于相机可见的对象的表面,同时获取捕获的距离数据 考虑到对象,c。 将由节点和边缘组成的对象的模型拟合到用于各个图像的计算机生成的3D点云中,其中节点表示对象的元素的选择,并且边缘表示所述元素的连接彼此相互重叠。 通过应用用于训练具有先前定义的点云随机选择的点数的自组织图的学习规则来迭代地更新所有节点位置, 重复步骤a。 到d 对于序列的每个随后的单独图像,其中对于步骤c中的拟合。 步骤e的结果。 在每种情况下使用上述图像,f。 从已经在图像序列的至少代表性图像中捕获的模型的预定节点的位置确定变化的姿势。
    • 7. 发明申请
    • Method for the Real-Time-Capable, Computer-Assisted Analysis of an Image Sequence Containing a Variable Pose
    • 用于实时性,计算机辅助分析包含可变姿态的图像序列的方法
    • US20120120073A1
    • 2012-05-17
    • US13319968
    • 2010-05-06
    • Martin HakerErhardt BarthThomas Martinetz
    • Martin HakerErhardt BarthThomas Martinetz
    • G06T17/00
    • G06T7/0046G06K9/00355G06T7/75
    • The invention relates to a method for the real-time-capable, computer-assisted analysis of an image sequence of an object consisting of elements that can be moved relative to each other and are interconnected, said sequence containing a variable pose, wherein the individual images of the image sequence are recorded by way of a time-of-flight (TOF) camera such that said images can be processed by a computer, and contain brightness and distance data as functions of the pixel coordinates of the camera for each image of the sequence, comprising the following steps: a. Capturing the pixels of an individual image forming the object, b. calculating a three-dimensional (3D) point cloud in a virtual space, said point cloud representing the surface of the object that is visible to the camera, by a computational projection of object-depicting pixels in such a space, while taking captured distance data to the object into consideration, c. fitting a model of the object consisting of nodes and edges into the computer-generated 3D point cloud for the individual image, wherein the nodes represent a selection of elements of the object and the edges represent the connections of said elements among each other, d. iteratively updating all node positions by applying a learning rule for training a self-organizing map having a previously defined number of randomly selected dots of the point cloud, e. repeating steps a. to d. for each subsequent individual image of the sequence, wherein for the fitting in step c. the result of step e. of the preceding image is used in each case, and f. determining the varying pose from the positions of predetermined nodes of the model which have been captured in at least representative images of the image sequence.
    • 本发明涉及一种用于实时能力的计算机辅助分析对象的图像序列的方法,所述对象由可相对于彼此移动并被互连的元素组成,所述序列包含可变姿态,其中所述个体 通过飞行时间(TOF)照相机记录图像序列的图像,使得所述图像可以由计算机处理,并且包含亮度和距离数据作为相机的每个图像的像素坐标的函数 该序列包括以下步骤:a。 捕获形成对象的单个图像的像素,b。 通过在这样的空间中的对象描绘像素的计算投影来计算虚拟空间中的三维(3D)点云,所述点云表示对于相机可见的对象的表面,同时获取捕获的距离数据 考虑到对象,c。 将由节点和边缘组成的对象的模型拟合到用于个体图像的计算机生成的3D点云中,其中节点表示对象的元素的选择,并且边缘表示彼此之间的所述元素的连接。 通过应用用于训练具有先前定义的点云随机选择的点数的自组织图的学习规则来迭代地更新所有节点位置, 重复步骤a。 到d 对于序列的每个随后的单独图像,其中对于步骤c中的拟合。 步骤e的结果。 在每种情况下使用上述图像,f。 从已经在图像序列的至少代表性图像中捕获的模型的预定节点的位置确定变化的姿势。