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公开(公告)号：US09892666B1
公开(公告)日：2018-02-13
申请号：US13528759
申请日：2012-06-20
申请人： Qiang Liu , Samuel Henry Chang , Eric G. Marason
发明人： Qiang Liu , Samuel Henry Chang , Eric G. Marason
摘要： Within a particular environment, a projection that may include light or one or more patterns may be directed at one or more mirrors. The projection may be reflected by a first one of the mirrors onto the surroundings of the environment, which may include a floor, one or more walls, and/or objects in the environment having a surface. A second mirror may represent an entire view of the surroundings of the environment. As a result, by taking an image directed at the second mirror, a single image may be captured that represents a view of the entire environment without having to rotate the device that captures the image. The single image may then be utilized to generate a three-dimensional model of the environment.
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公开(公告)号：US09129375B1
公开(公告)日：2015-09-08
申请号：US13455949
申请日：2012-04-25
申请人： Qiang Liu , Samuel Henry Chang
发明人： Qiang Liu , Samuel Henry Chang
CPC分类号： G06T7/0038 , G06T3/0068 , G06T7/75 , G06T19/00 , G06T19/20 , G06T2219/2016 , H04N7/54 , H04N9/28 , H04N9/31 , H04N9/3185 , H04N9/3194
摘要： Techniques are described for determining the pose of an object based on a 3D point set representing the object. The 3D point set is rotated into a 2D coordinate system and a model object contour is aligned with the contour of the rotated point set using an iterative process. The aligned model object contour is then rotated back into the original 3D coordinate system, where its pose is assumed to represent the pose of the object.
摘要翻译： 描述了基于表示对象的3D点集来确定对象的姿态的技术。 将3D点集合旋转到2D坐标系中，并使用迭代过程将模型对象轮廓与旋转点集的轮廓对齐。 然后将对齐的模型对象轮廓旋转回原始的3D坐标系，假设其姿态表示对象的姿态。
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公开(公告)号：US09456187B1
公开(公告)日：2016-09-27
申请号：US13486634
申请日：2012-06-01
申请人： Qiang Liu , Samuel Henry Chang , Ning Yao
发明人： Qiang Liu , Samuel Henry Chang , Ning Yao
摘要： Techniques are described for determining the pose of a surface based on a point set representing the surface. Corner models are matched to a contour of the point set using a difference minimization technique to identify corner poses of the surface. Based on the corner poses, a virtual model of the surface is created and matched to the point set to determine the pose of the surface.
摘要翻译： 描述了基于表示表面的点集来确定表面姿态的技术。 使用差分最小化技术将拐角模型与点集的轮廓相匹配，以识别表面的角姿势。 基于角姿势，创建表面的虚拟模型并将其与点集合相匹配，以确定曲面的姿态。
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公开(公告)号：US09560446B1
公开(公告)日：2017-01-31
申请号：US13535135
申请日：2012-06-27
申请人： Samuel Henry Chang , Wai C. Chu
发明人： Samuel Henry Chang , Wai C. Chu
CPC分类号： H04R3/005 , H04R1/406 , H04R2201/403 , H04R2430/20
摘要： A sound source locator efficiently employs a distributed physical or logical microphone array to determine a location of a source of a sound. In some instances, the sound source locator is deployed in an augmented reality environment. The sound source locator detects sound at a plurality of microphones, generates a signal corresponding to the sound, and causes attributes of signal as generated at the plurality of microphones to be stored in association with the corresponding microphone. The sound source locator uses these stored attributes to identify multiple groups of the plurality of microphones from which delays between the times the signal is generated can be used to compute the location of the source of the sound.
摘要翻译： 声源定位器有效地使用分布式物理或逻辑麦克风阵列来确定声源的位置。 在某些情况下，声源定位器部署在增强现实环境中。 声源定位器检测多个麦克风处的声音，产生对应于声音的信号，并且使与多个麦克风相关联地存储在多个麦克风处产生的信号的属性被存储。 声源定位器使用这些存储的属性来识别多个麦克风的多个组，从该信号生成的时间之间的延迟可用于计算声源的位置。
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公开(公告)号：US09160904B1
公开(公告)日：2015-10-13
申请号：US13612113
申请日：2012-09-12
IPC分类号： H04N5/225
CPC分类号： H04N5/2251 , F16M11/12 , G06F3/00 , G06F3/011 , G06T7/73 , G06T2207/30208 , H04N5/2256 , H04N9/3141 , H04N9/3194 , H04N13/20 , H04N13/246 , H04N13/254
摘要： A calibration module may acquire calibration data for calibrating rotations of augmented reality functional node. The calibration module scans a target, records pose data for the augmented reality functional node, and captures images of the scanned target. From these acquired images, calibration may be determined. Once determined, the calibration may be used to determine a rotator control model.
摘要翻译： 校准模块可以获取用于校准增强现实功能节点的旋转的校准数据。 校准模块扫描目标，记录增强现实功能节点的姿态数据，并捕获扫描目标的图像。 从这些获取的图像可以确定校准。 一旦确定，可以使用校准来确定旋转器控制模型。
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公开(公告)号：US09241141B1
公开(公告)日：2016-01-19
申请号：US13336458
申请日：2011-12-23
IPC分类号： H04N7/18
CPC分类号： H04N7/183 , H04N7/181 , H04N9/3185 , H04N9/3194
摘要： Sensing systems using projection blocks of structured light provide useful information about the surfaces they are projected onto. A camera captures an image which contains a captured block, that is, an image of the projection block interacting with the surface. Corrections may be applied to the captured image to compensate for distortions produced by projector and/or camera systems and produce a corrected image. Noise may be removed from the corrected image using a bilateral filter, producing a filtered image. The filtered image may be processed to determine a boundary of the captured block.
摘要翻译： 使用结构化光源的投影块的感应系统提供有关投影到其上的表面的有用信息。 摄像机捕获包含捕获块的图像，即投影块与表面相互作用的图像。 可以对捕获的图像应用校正以补偿由投影仪和/或相机系统产生的变形并产生校正图像。 可以使用双边滤波器从校正图像中去除噪声，产生滤波图像。 可以处理经滤波的图像以确定所捕获的块的边界。
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公开(公告)号：US08970693B1
公开(公告)日：2015-03-03
申请号：US13327141
申请日：2011-12-15
CPC分类号： G06T19/006 , G06T7/521 , G06T15/20
摘要： Structured light patterns are projected onto an object and images of the structured light interacting with the surface of the object are acquired, as well as grayscale information. Edges within the structured light patterns are detected and depth sample points on the edges are used to determine distance to those sample points. The grayscale information is used to construct surface normals. From these normals relative surface contours such as curves or slopes may be determined. A model of a surface of the object is generated using the distances and the contours.
摘要翻译： 结构化光图案被投影到物体上，并且获取与物体的表面相互作用的结构化光的图像以及灰度信息。 检测结构化光图案内的边缘，边缘上的深度采样点用于确定与这些采样点的距离。 灰度信息用于构建表面法线。 从这些法线可以确定相对表面轮廓，例如曲线或斜率。 使用距离和轮廓生成对象表面的模型。
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公开(公告)号：US08837778B1
公开(公告)日：2014-09-16
申请号：US13486664
申请日：2012-06-01
申请人： Samuel Henry Chang , Ning Yao
发明人： Samuel Henry Chang , Ning Yao
IPC分类号： G06K9/00
CPC分类号： G06F3/0304 , G06F3/017 , G06T7/251 , G06T7/75 , G06T2200/04 , G06T2207/10028
摘要： Techniques are described for tracking the pose of a surface based on a point set representing the surface. Sequential observed poses of the surface are used as the basis for creating a mathematical model of the motion of the surface. Future motion of the surface may be predicted based on the mathematical model.
摘要翻译： 描述了基于表示表面的点集来跟踪表面的姿态的技术。 使用表面的顺序观察姿势作为创建表面运动的数学模型的基础。 表面的未来运动可以基于数学模型来预测。
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公开(公告)号：US08619144B1
公开(公告)日：2013-12-31
申请号：US13419857
申请日：2012-03-14
IPC分类号： H04N17/00
CPC分类号： H04N17/002 , G06T7/80
摘要： Devices and techniques are described for automatically calibrating a camera system. The camera system undergoing calibration is coupled to a computing device and an automated positioning platform coupled to a target structure. The computing device acquires images from the camera of the target structure in a plurality of repeatable poses. From these acquired images, intrinsic camera parameters may be determined. Once determined, the parameters may be used to correct images acquired by the camera system.
摘要翻译： 描述了自动校准摄像机系统的设备和技术。 正在进行校准的相机系统耦合到计算设备和耦合到目标结构的自动定位平台。 计算装置以多个可重复姿态从目标结构的照相机获取图像。 从这些获取的图像可以确定固有的相机参数。 一旦确定，可以使用参数来校正由相机系统获取的图像。
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公开(公告)号：US09704027B1
公开(公告)日：2017-07-11
申请号：US13405621
申请日：2012-02-27
申请人： Samuel Henry Chang , Sowmya Gopalan , Ning Yao , Yuhua Zhu
发明人： Samuel Henry Chang , Sowmya Gopalan , Ning Yao , Yuhua Zhu
CPC分类号： G06K9/00355 , G06K9/2036 , G06K2209/21 , G06K2209/401 , G06T7/20 , G06T2207/30196
摘要： A hand gesture may be characterized mathematically as a set of motion parameters applied to a dynamic motion model. Training may be conducted to compile a library of motion parameter sets corresponding to various gestures. Motion parameters corresponding to observed gestures may than be compared to the library of motion parameter sets to classify the observed gestures.
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