-
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。
-
公开(公告)号：US09197870B1
公开(公告)日：2015-11-24
申请号：US13612173
申请日：2012-09-12
申请人： Olusanya T. Soyannwo , Samuel Henry Chang , Edward Dietz Crump , Weijian Wang , Renwei Yan , Ning Yao
发明人： Olusanya T. Soyannwo , Samuel Henry Chang , Edward Dietz Crump , Weijian Wang , Renwei Yan , Ning Yao
CPC分类号： G03B21/53 , A63F13/00 , A63F13/213 , A63F13/42 , G02B27/0101 , G02B2027/0138 , G02B2027/014 , G03B17/54 , G06T19/006 , H04N9/317 , H04N9/3185 , H04N9/3188 , H04N9/3194
摘要： Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.
摘要翻译： 描述了在移动投影表面上执行投影图像的自动聚焦的技术。 识别投影图像的特定区域，其可能希望保持在最佳焦点，并且可以使用诸如锐度和对比度的那些特定区域的属性来确定对图像进行重新聚焦的需要。 可以利用投影图像数据的高级知识来确定需要监控最佳聚焦的投影图像的特定区域。
-
公开(公告)号：US09275302B1
公开(公告)日：2016-03-01
申请号：US13594245
申请日：2012-08-24
CPC分类号： G06K9/6204 , G06K9/00201 , G06K9/00208 , G06K9/00624 , G06K9/00758 , G06K9/00771 , G06K9/3241 , G06K9/46 , G06K9/4604 , G06K9/4609 , G06K9/48 , G06K9/482 , G06K9/6206 , G06K9/6293 , G06T7/73 , G06T2207/10024 , G06T2207/10028
摘要： A two-dimensional (2D) image and a three-dimensional (3D) of an environment may be captured. Upon identifying a location and/or contour of an object from the 3D image, the object from the 3D image may be mapped onto the 2D image. The object, including its location and contour, may be identified from the 2D image. Based at least partly on a comparison between the object from the 3D image and the object from the 2D image, a disparity may be calculated. The location and contour of the object may be determined when it is determined that the disparity is less than or equal to a predetermined threshold. Otherwise, the object from the 3D image may be remapped onto the 2D image.
摘要翻译： 可以捕获二维（2D）图像和三维（3D）环境。 在从3D图像识别对象的位置和/或轮廓时，来自3D图像的对象可以被映射到2D图像上。 可以从2D图像识别对象，包括其位置和轮廓。 至少部分地基于来自3D图像的对象与来自2D图像的对象之间的比较，可以计算视差。 当确定视差小于或等于预定阈值时，可以确定对象的位置和轮廓。 否则，3D图像中的对象可能会重新映射到2D图像上。
-
公开(公告)号：US08970479B1
公开(公告)日：2015-03-03
申请号：US13562734
申请日：2012-07-31
申请人： Samuel Henry Chang , Weijian Wang , Sowmya Gopalan , Ning Yao , Yuhua Zhu , Manika Puri
发明人： Samuel Henry Chang , Weijian Wang , Sowmya Gopalan , Ning Yao , Yuhua Zhu , Manika Puri
CPC分类号： G06F3/017 , G06K9/00355
摘要： Techniques are described for detecting a hand gesture made by a user. Fingertips of a hand may be identified and tracked over time. When a user contracts the fingertips from an extended position, hand spread may be calculated based on the area of the hand and fingers. The hand spread over time may be compared to a Gaussian function to evaluate whether the observed motion represents a grasping motion.
摘要翻译： 描述了用于检测由用户做出的手势的技术。 一只手的指尖可能随时间被识别和跟踪。 当用户从伸展位置收缩指尖时，可以基于手和手指的面积来计算手伸。 随着时间推移的手可以与高斯函数进行比较，以评估观察到的运动是否表示抓握运动。
-
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.
-
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。
-
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。
-
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。
-
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.033 秒)
