专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20140125773A1 IMAGE PROCESSING METHODS AND APPARATUS 审中-公开
标题翻译：图像处理方法和装置
公开(公告)号：US20140125773A1
公开(公告)日：2014-05-08
申请号：US14072427
申请日：2013-11-05
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Atsuto MAKI , Riccardo Gherardi , Oliver Woodford , Frank Perbet , Minh-Tri Pham , Bjorn Stenger , Sam Johnson , Roberto Cipolla
IPC分类号： G06T7/40 , H04N13/02 , G06T7/00
CPC分类号： H04N13/239 , G06T7/593 , G06T7/90 , G06T7/97 , G06T2207/10012 , G06T2207/20076 , H04N2013/0081
摘要： A method of calculating a similarity measure between first and second image patches, which include respective first and second intensity values associated with respective elements of the first and second image patches, and which have a corresponding size and shape such that each element of the first image patch corresponds to an element on the second image patch. The method: determines a set of sub-regions on the second image patch corresponding to elements of the first image patch and having first intensity values within a range defined for that sub-region; calculates variance, for each sub-region of the set over all of the elements of that sub-region, of a function of the second intensity value associated with that element and the first intensity value associated with the corresponding element of the first image patch; and calculates similarity measure as the sum over all sub-regions of the calculated variances.
摘要翻译：一种计算第一和第二图像块之间的相似性度量的方法，其包括与第一和第二图像块的各个元件相关联的相应的第一和第二强度值，并且具有相应的尺寸和形状，使得第一图像的每个元素补丁对应于第二个图像补丁上的元素。该方法：确定与第一图像补丁的元素相对应的第二图像补丁上的一组子区域，并且在为该子区域定义的范围内具有第一强度值; 对于该子区域的所有元素的集合的每个子区域计算与该元素相关联的第二强度值的函数和与第一图像补丁的相应元素相关联的第一强度值的方差; 并计算相似性度量作为计算方差的所有子区域之和。

2. 发明授权

US09767604B2 Image analysis method by analyzing point cloud using hierarchical search tree 有权
公开(公告)号：US09767604B2
公开(公告)日：2017-09-19
申请号：US14807248
申请日：2015-07-23
申请人： Kabushiki Kaisha Toshiba
发明人： Minh-Tri Pham , Riccardo Gherardi , Frank Perbet , Bjorn Stenger , Sam Johnson , Oliver Woodford , Pablo Alcantarilla , Roberto Cipolla
IPC分类号： G06K9/00 , G06T17/00 , G06T5/00 , G06T7/66
CPC分类号： G06T17/005 , G06T5/001 , G06T7/66 , G06T2207/10028
摘要： A method of object recognition and/or registration includes receiving a point cloud, arranging the points of the point cloud into a hierarchical search tree, and determining geometric information of the points located within a region, by identifying a highest level tree nodes where all of descendent leaf nodes are contained within the region and selecting the leaf nodes for the points where no sub-tree is entirely contained within the region, such that the points falling within the region are represented by the smallest number of nodes and performing statistical operations on the nodes representing the points in the region. The geometric information includes descriptors of features in the point cloud. The method further includes comparing the feature descriptors with a database of feature descriptors for a plurality of objects.

3. 发明授权

US10460158B2 Methods and systems for generating a three dimensional representation of a human body shape 有权
公开(公告)号：US10460158B2
公开(公告)日：2019-10-29
申请号：US15117735
申请日：2014-06-19
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Frank Perbet , Minh-Tri Pham , Bjorn Stenger , Sam Johnson
IPC分类号： G06K9/00 , G06Q30/06 , H04N13/204 , A61B5/107 , G06K9/62 , G06T17/10
摘要： In a method of generating a three dimensional representation of a human body shape from a depth image of a clothed human subject is disclosed. The method comprises identifying at least one sample from a plurality of pre-calculated representative samples, each pre-calculated representative sample comprising a three dimensional representation of a human body shape and a corresponding depth map, by comparing the depth maps of the pre-calculated representative samples with the depth image of the clothed human subject; determining a neighbourhood of the data space of possible depth images of unclothed human body shapes from the depth map of the at least one representative sample; generating a parametric model for the human body shape from a neighbourhood of the data space of human body shapes, the neighbourhood of the data space of human body shapes corresponding to the neighbourhood of the data space of possible depth images of unclothed human body shapes; and generating the three dimensional representation of the human body shape by fitting the parametric model to the depth image of the clothed human subject.

4. 发明申请

US20150254527A1 METHODS FOR 3D OBJECT RECOGNITION AND REGISTRATION 审中-公开
标题翻译：用于3D对象识别和注册的方法
公开(公告)号：US20150254527A1
公开(公告)日：2015-09-10
申请号：US14468733
申请日：2014-08-26
申请人： Kabushiki Kaisha Toshiba
发明人： Minh-Tri Pham , Frank Perbet , Bjorn Dietmar, Rafael Stenger , Riccardo Gherardi , Oliver Woodford , Sam Johnson , Roberto Cipolla , Stephan Liwicki
IPC分类号： G06K9/62 , G06K9/52
CPC分类号： G06K9/00214 , G06K9/6202 , G06K9/6211
摘要： A method for comparing a plurality of objects, the method comprising representing at least one feature of each object as a 3D ball representation, the radius of each ball representing the scale of the feature in the with respect to the frame of the object, the position of each ball representing the translation the feature in the frame of the object, the method further comprising comparing the objects by comparing the scale and translation as represented by the 3D balls to determine similarity between objects and their poses.
摘要翻译：一种用于比较多个对象的方法，所述方法包括将每个对象的至少一个特征表示为3D球表示，每个球的半径表示相对于对象的帧的特征的比例，位置每个球代表对象的帧中的特征的翻译，所述方法还包括通过比较由3D球代表的比例和平移来比较对象，以确定对象与其姿态之间的相似性。

5. 发明申请

US20150036918A1 IMAGE PROCESSING METHOD AND SYSTEM 审中-公开
标题翻译：图像处理方法和系统
公开(公告)号：US20150036918A1
公开(公告)日：2015-02-05
申请号：US14460171
申请日：2014-08-14
申请人： Kabushiki Kaisha Toshiba
发明人： Minh-Tri Pham , Oliver Woodford , Frank Perbet , Atsuto Maki , Bjorn Stenger , Roberto Cipolla
IPC分类号： G06T7/00 , G06T3/20 , G06F17/30 , G06T3/60 , G06K9/00 , G06K9/62
CPC分类号： G06T7/0042 , G06F17/30259 , G06K9/00214 , G06K9/2036 , G06K9/6202 , G06T3/20 , G06T3/60 , G06T7/586 , G06T7/73 , G06T2207/10024 , G06T2207/30208 , G06T2207/30244
摘要： A method of comparing two object poses, wherein each object pose is expressed in terms of position, orientation and scale with respect to a common coordinate system, the method comprising: calculating a distance between the two object poses, the distance being calculated using the distance function: d sRt  ( X , Y ) = d s 2  ( X , Y ) σ s 2 + d r 2  ( X , Y ) σ r 2 + d t 2  ( X , Y ) σ t 2 . where X is the object pose of one object and Y is the object pose of the other object, d s  ( X , Y ) =  log  ( s  ( X ) s  ( Y ) )  ,  d r  ( X , Y ) =  R  ( X ) - R  ( Y )  F ,  d t  ( X , Y ) =  t  ( X ) - t  ( Y )  s  ( Y ) , s(X) and s(Y) are scalar functions representing the scale of the object poses X and Y respectively, R(X) and R(Y) are matrices expressing the rotation of object poses X and Y respectively, t(X) and t(Y) are vectors expressing the translation of object poses X and Y respectively, and σs, σr and σt are weighting factors for ds, dr and dt respectively.
摘要翻译：一种比较两个物体姿态的方法，其中每个物体姿态相对于公共坐标系以位置，方向和比例表示，所述方法包括：计算两个物体姿势之间的距离，使用距离计算距离函数：d sRt（X，Y）= ds 2（X，Y）＆sgr; s 2 + d r 2（X，Y）＆sgr; r 2 + d t 2（X，Y）＆sgr; t 2。其中X是一个对象的对象姿态，Y是另一个对象的对象姿态，其中X（X，Y）=（log）（s（X）s（Y）），dr （Y）（X） - R（Y）F，dt（X，Y）=t（X） - t（Y））和s（Y）分别表示对象姿态X和Y的尺度的标量函数，R（X）和R（Y）分别表示对象姿势X和Y的旋转矩阵，t（X）和t（ Y）是分别表示对象姿势X和Y的平移的矢量，＆sgr，s，＆sgr; r和＆sgr; t分别是ds，dr和dt的权重因子。

6. 发明授权

US09905047B2 Method and systems for generating a three dimensional model of a subject by iteratively generating meshes 有权
公开(公告)号：US09905047B2
公开(公告)日：2018-02-27
申请号：US14921908
申请日：2015-10-23
申请人： Kabushiki Kaisha Toshiba
发明人： Frank Perbet , Bjorn Stenger , Minh-Tri Pham
IPC分类号： G06T17/20
CPC分类号： G06T17/20 , G06T17/205 , G06T2210/36
摘要： In one embodiment a method of generating a three dimensional model of a subject is disclosed. The method comprises receiving point cloud data for a subject; receiving user inputs indicating a plurality of cubes, and a grouping of the cubes into a plurality of blocks to form a representation of a class of subjects; generating a first mesh comprising a plurality of quadrilaterals by subdividing patches corresponding to faces of blocks of the plurality of blocks; fitting the first mesh to the point cloud data to generate a fitted mesh; iteratively generating further meshes, each comprising a plurality of quadrilaterals by subdividing patches of the fitted mesh from the previous iteration and fitting the further mesh to the point cloud data; and outputting as the three dimensional model of the subject the iteratively generated fitted mesh.

7. 发明授权

US09646408B2 Methods and systems for generating a three dimensional representation of a subject 有权
公开(公告)号：US09646408B2
公开(公告)日：2017-05-09
申请号：US14270427
申请日：2014-05-06
申请人： Kabushiki Kaisha Toshiba
发明人： Sam Johnson , Frank Perbet , Bjorn Stenger , Minh-Tri Pham , Oliver Woodford , Riccardo Gherardi , Roberto Cipolla
IPC分类号： G06T15/00 , G06T17/20
CPC分类号： G06T15/00 , G06T17/20
摘要： According to one embodiment, a method of generating a three dimensional representation of a subject from a depth image, comprises comparing a depth image of the subject with a plurality of representative images, wherein each representative image is associated with a respective parametric model of a subject; identifying a representative image of the plurality of representative images as a closest representative image to the depth image of the subject; selecting the parametric model associated with the closest representative image to the depth image; and generating a three dimensional representation of the subject by fitting the selected parametric model to the depth image of the subject.

8. 发明授权

US09008439B2 Image processing method and system 有权
标题翻译：图像处理方法和系统
公开(公告)号：US09008439B2
公开(公告)日：2015-04-14
申请号：US14460171
申请日：2014-08-14
申请人： Kabushiki Kaisha Toshiba
发明人： Minh-Tri Pham , Oliver Woodford , Frank Perbet , Atsuto Maki , Bjorn Stenger , Roberto Cipolla
IPC分类号： G06K9/48 , G06T7/00 , G06K9/00 , G06K9/62 , G06F17/30 , G06T3/60 , G06T3/20
CPC分类号： G06T7/0042 , G06F17/30259 , G06K9/00214 , G06K9/2036 , G06K9/6202 , G06T3/20 , G06T3/60 , G06T7/586 , G06T7/73 , G06T2207/10024 , G06T2207/30208 , G06T2207/30244
摘要： A method of comparing two object poses, wherein each object pose is expressed in terms of position, orientation and scale with respect to a common coordinate system, the method comprising: calculating a distance between the two object poses, the distance being calculated using the distance function: d sRt ⁡ ( X , Y ) = d s 2 ⁡ ( X , Y ) σ s 2 + d r 2 ⁡ ( X , Y ) σ r 2 + d t 2 ⁡ ( X , Y ) σ t 2 . where X is the object pose of one object and Y is the object pose of the other object, d s ⁡ ( X , Y ) =  log ⁡ ( s ⁡ ( X ) s ⁡ ( Y ) )  , ⁢ d r ⁡ ( X , Y ) =  R ⁡ ( X ) - R ⁡ ( Y )  F , ⁢ d t ⁡ ( X , Y ) =  t ⁡ ( X ) - t ⁡ ( Y )  s ⁡ ( Y ) , s(X) and s(Y) are scalar functions representing the scale of the object poses X and Y respectively, R(X) and R(Y) are matrices expressing the rotation of object poses X and Y respectively, t(X) and t(Y) are vectors expressing the translation of object poses X and Y respectively, and σs, σr and σt are weighting factors for ds, dr and dt respectively.
摘要翻译：一种比较两个物体姿态的方法，其中每个物体姿态相对于公共坐标系以位置，方向和比例表示，所述方法包括：计算两个物体姿势之间的距离，使用距离计算距离函数：d sRt⁡（X，Y）= ds 2⁡（X，Y）＆sgr; s 2 + d r 2⁡（X，Y）＆sgr; r 2 + d t 2⁡（X，Y）＆sgr; t 2。其中X是一个对象的对象姿态，Y是另一个对象的对象姿态，ds⁡（X，Y）= log log（s⁡（X）s⁡（Y））庇，dr⁡（X ，Y）=R⁡（X） - R⁡（Y）F，dt⁡（X，Y）=t⁡（X）-t⁡（Y）s⁡（Y））和s（Y）分别表示对象姿态X和Y的尺度的标量函数，R（X）和R（Y）分别表示对象姿势X和Y的旋转矩阵，t（X）和t（ Y）是分别表示对象姿势X和Y的平移的矢量，＆sgr，s，＆sgr; r和＆sgr; t分别是ds，dr和dt的权重因子。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式