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公开(公告)号：US20120162356A1
公开(公告)日：2012-06-28
申请号：US13392680
申请日：2010-09-02
摘要： The present invention relates to a method for an image processing system (100), the method comprising the steps of acquiring (S1) a first image (I1) of a first person, locating (S2) a first segment (202, 204) in the first image (I1) comprising at least an eye of the first person, acquiring (S3) a second image (I2) of a second person, locating (S4) a second segment (206, 208) in the second image (I2) comprising at least an eye of the second person, the second segment corresponding in relative position and size to the first segment (202, 204), comparing the second segment (206, 208) with the first segment (202, 204), and replacing the second segment (206, 208) in the second image (I2) with the first segment (202, 204) if the comparison gives a difference that is smaller than a pre-defined threshold. The present invention allows for replacements of segments of the face with pre-recorded corresponding segments having characteristics for improving eye-to-eye contact in e.g. a near-end/far-end user video conferencing system.
摘要翻译： 本发明涉及一种图像处理系统（100）的方法，该方法包括以下步骤：获取（S1）第一人的第一图像（I1），将第一段（202,204）定位（S2） 所述第一图像（I1）至少包括所述第一人的眼睛，获取（S3）第二人物的第二图像（I2），将所述第二图像（I2）中的第二片段（206,208）定位（S4） 至少包括所述第二人的眼睛，所述第二段对应于与所述第一段（202,204）的相对位置和大小，将所述第二段（206,208）与所述第一段（202,204）进行比较，并且将所述第二段 如果比较给出小于预定义阈值的差异，则具有第一段（202,204）的第二图像（I2）中的第二段（206,208）。 本发明允许用具有用于改善例如眼睛中的眼睛接触的特征的预先记录的对应的段替换面部的段。 近端/远端用户视频会议系统。
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公开(公告)号：US09582706B2
公开(公告)日：2017-02-28
申请号：US14114213
申请日：2012-04-23
IPC分类号： G06K9/00
CPC分类号： G06K9/00228 , G06K9/00208 , G06T15/50 , G06T17/20
摘要： The location of a face is detected from data about a scene. A 3D surface model from is obtained from measurements of the scene. A 2D angle data image is generated from the 3D surface model. The angle data image is generated for a virtual lighting direction, the image representing angles between a ray directions from a virtual light source direction and normal to the 3D surface. A 2D face location algorithm is applied to each of the respective 2D images. In an embodiment respective 2D angle data images for a plurality of virtual lighting directions are generated and face locations detected from the respective 2D images are fused.
摘要翻译： 从关于场景的数据检测脸部的位置。 从场景的测量获得3D表面模型。 从3D表面模型生成2D角度数据图像。 为虚拟照明方向生成角度数据图像，该图像表示从虚拟光源方向到垂直于3D表面的射线方向之间的角度。 2D面部位置算法被应用于各个2D图像中的每一个。 在一个实施例中，生成用于多个虚拟照明方向的各自的2D角度数据图像，并且从各个2D图像检测到的面部位置被融合。
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公开(公告)号：US20130002846A1
公开(公告)日：2013-01-03
申请号：US13582582
申请日：2011-03-15
IPC分类号： H04N7/18
CPC分类号： A61B3/113 , G06F3/013 , G06F3/147 , G06K9/0061 , G09G2380/12
摘要： A system for tracking the point of gaze of an observer observing an object comprises a camera for recording an image of an eye of the observer, comprises a means for providing a luminous marker, and means for analyzing the image of the eye to determine the reflection of the marker on the eye and the centre of the pupil. The relative positions of the corneal reflection of the marker and the pupil centre are measured. The marker is repositioned, in dependence on the determined relative positions, to improve correspondence between the corneal reflection of the marker and the pupil centre.
摘要翻译： 用于跟踪观察对象的观察者的目标点的系统包括用于记录观察者的眼睛的图像的照相机，包括用于提供发光标记的装置，以及用于分析眼睛的图像以确定反射的装置 的眼睛和瞳孔的中心的标记。 测量标记物和瞳孔中心的角膜反射的相对位置。 根据确定的相对位置重新定位标记，以改善标记物和瞳孔中心的角膜反射之间的对应关系。
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公开(公告)号：US09955927B2
公开(公告)日：2018-05-01
申请号：US13320358
申请日：2010-05-10
申请人： Bernardus Hendrikus Wilhelmus Hendriks , Michael Cornelis Van Beek , Peter-Andre Redert , Frederik Jan De Bruijn , Drazenko Babic , Robert Johannes Frederik Homan , Ralph Braspenning , Wei Pien Lee , Karl Catharina Van Bree , Caifeng Shan
发明人： Bernardus Hendrikus Wilhelmus Hendriks , Michael Cornelis Van Beek , Peter-Andre Redert , Frederik Jan De Bruijn , Drazenko Babic , Robert Johannes Frederik Homan , Ralph Braspenning , Wei Pien Lee , Karl Catharina Van Bree , Caifeng Shan
CPC分类号： A61B6/025 , A61B6/4423 , A61B6/4441 , A61B6/5247 , A61B90/361 , A61B90/39 , A61B2090/376
摘要： A system for accurately detecting a patient's movement during imaging procedures includes a camera for providing a stream of camera images of a part of a patient's exterior and a fiducial element mountable on part of the patient's exterior. The fiducial element is detectable in the stream of images. An image processor is configured to detect a displacement of the fiducial element based on consecutive images including in at least the stream of images and to generate an output signal indicative of the displacement. The fiducial element has an in-plane stiffness which is substantially larger than an in-plane stiffness of the part of the patient's exterior. In addition, the fiducial element and the part of the patient's exterior are provided with substantially equal outer in-plane dimensions.
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公开(公告)号：US20120170824A1
公开(公告)日：2012-07-05
申请号：US13320358
申请日：2010-05-10
申请人： Bernardus Hendrikus Wilhelmus Hendriks , Michael Cornelis Van Beek , Peter-Andre Redert , Frederik Jan De Bruijn , Drazenko Babic , Robert Johannes Frederik Homan , Ralph Braspenning , Wei Pien Lee , Karl Catharina Van Bree , Caifeng Shan
发明人： Bernardus Hendrikus Wilhelmus Hendriks , Michael Cornelis Van Beek , Peter-Andre Redert , Frederik Jan De Bruijn , Drazenko Babic , Robert Johannes Frederik Homan , Ralph Braspenning , Wei Pien Lee , Karl Catharina Van Bree , Caifeng Shan
IPC分类号： G06K9/00
CPC分类号： A61B6/025 , A61B6/4423 , A61B6/4441 , A61B6/5247 , A61B90/361 , A61B90/39 , A61B2090/376
摘要： The invention provides a system (102) for accurately detecting a patient's (114) movement during imaging procedures. The system comprises a camera (126) for providing a stream of camera images of a part of a patient's exterior (206). The system (102) furthermore comprises a fiducial element (116), which fiducial element (116) is mountable on said part of the patient's exterior (206), and which fiducial element (116) is detectable in the stream of camera images, and an image processor (128) for detecting a displacement of the fiducial element based on consecutive camera images comprised in at least the stream of camera images and for generating an output signal (129) indicative for said displacement. Herein, the fiducial element (116) has an in-plane stiffness which is substantially larger than an in-plane stiffness of said part of the patient's exterior. In addition, the fiducial element (116) and said part of the patient's exterior are provided with substantially equal outer in-plane dimensions.
摘要翻译： 本发明提供一种用于在成像过程期间准确地检测患者（114）运动的系统（102）。 该系统包括用于提供患者外部（206）的一部分的相机图像流的照相机（126）。 所述系统（102）还包括基准元件（116），所述基准元件（116）可安装在所述患者外部部分（206）的所述部分上，并且所述基准元件（116）在相机图像流中是可检测的，以及 图像处理器（128），用于基于包括在至少相机图像流中的连续相机图像来检测基准元素的位移，并且用于生成指示所述位移的输出信号（129）。 这里，基准元件（116）具有的面内刚度基本上大于患者外部部分的平面内刚度。 此外，基准元件（116）和患者外部的所述部分设置有基本上相等的外部平面外尺寸。
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公开(公告)号：US09237844B2
公开(公告)日：2016-01-19
申请号：US13582582
申请日：2011-03-15
CPC分类号： A61B3/113 , G06F3/013 , G06F3/147 , G06K9/0061 , G09G2380/12
摘要： A system for tracking the point of gaze of an observer observing an object comprises a camera for recording an image of an eye of the observer, comprises a means for providing a luminous marker, and means for analyzing the image of the eye to determine the reflection of the marker on the eye and the centre of the pupil. The relative positions of the corneal reflection of the marker and the pupil centre are measured. The marker is repositioned, in dependence on the determined relative positions, to improve correspondence between the corneal reflection of the marker and the pupil center.
摘要翻译： 用于跟踪观察对象的观察者的目标点的系统包括用于记录观察者的眼睛的图像的照相机，包括用于提供发光标记的装置，以及用于分析眼睛的图像以确定反射的装置 的眼睛和瞳孔的中心的标记。 测量标记物和瞳孔中心的角膜反射的相对位置。 根据确定的相对位置重新定位标记，以改善标记物和瞳孔中心的角膜反射之间的对应关系。
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公开(公告)号：US20140056510A1
公开(公告)日：2014-02-27
申请号：US14114213
申请日：2012-04-23
IPC分类号： G06K9/00
CPC分类号： G06K9/00228 , G06K9/00208 , G06T15/50 , G06T17/20
摘要： The location of a face is detected from data about a scene. A 3D surface model from is obtained from measurements of the scene. A 2D angle data image is generated from the 3D surface model. The angle data image is generated for a virtual lighting direction, the image representing angles between a ray directions from a virtual light source direction and normal to the 3D surface. A 2D face location algorithm is applied to each of the respective 2D images. In an embodiment respective 2D angle data images for a plurality of virtual lighting directions are generated and face locations detected from the respective 2D images are fused.
摘要翻译： 从关于场景的数据中检测脸部的位置。 从场景的测量获得3D表面模型。 从3D表面模型生成2D角度数据图像。 为虚拟照明方向生成角度数据图像，该图像表示从虚拟光源方向到垂直于3D表面的射线方向之间的角度。 2D面部位置算法被应用于各个2D图像中的每一个。 在一个实施例中，生成用于多个虚拟照明方向的各自的2D角度数据图像，并且从各个2D图像检测到的面部位置被融合。
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公开(公告)号：US09982995B2
公开(公告)日：2018-05-29
申请号：US14117446
申请日：2012-05-11
CPC分类号： G01B11/2518 , G01B11/2513 , G01B11/2536 , G06T7/521 , G06T7/586 , G06T2207/10012 , G06T2207/10028 , G06T2207/10152
摘要： A series of structured lighting patterns are projected on an object. Each successive structured lighting pattern has a first and second subset of intensity features such as edges between light and dark areas. The intensity features of the first set coincide spatially with intensity features from either the first or second subset from a preceding structured lighting pattern in the series. Image positions are detected where the intensity features of the first and second subset of the structured lighting patterns are visible in the images. Image positions where the intensity features of the first subset are visible are associated with the intensity features of the first subset, based on the associated intensity features of closest detected image positions with associated intensity features in the image obtained with a preceding structured lighting pattern in said series. Image positions where the intensity features of the second subset are visible, between pairs of the image positions associated with intensity features of the first subset, with intensity features of the second subset between the intensity features associated with the pair of positions. The associated intensity features in a final structured lighting pattern of the series are used to identify the intensity features of the final structured lighting pattern for the determination of 3D surface position information.
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