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公开(公告)号：US06793350B1
公开(公告)日：2004-09-21
申请号：US10458386
申请日：2003-06-10
IPC分类号： G03B2100
CPC分类号： G06T3/0081 , G03B37/04 , G06K9/2036 , G06T5/006 , H04N9/3147 , H04N9/3185 , H04N9/3194
摘要： A method projects one or more image onto a curved display surface. First, a predetermined structured light pattern is projected onto the display surface. A stereo pair of images is acquired of the projected images on the display surface. Then, a quadric transfer function between the predetermined images and the stereo pair of images, via the display surface, is determined. Thus, an arbitrary output image can be warped according to the quadric transfer function so that when it is projected onto the display surface it appears correct.
摘要翻译： 一种方法将一个或多个图像投射到弯曲的显示表面上。 首先，将预定的结构光图案投影到显示面上。 在显示表面上获取投影图像的立体图像对。 然后，通过显示表面确定预定图像和立体对图像之间的二次传递函数。 因此，可以根据二次转移函数扭曲任意输出图像，使得当它被投影到显示表面上时它看起来正确。
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公开(公告)号：US06715888B1
公开(公告)日：2004-04-06
申请号：US10394315
申请日：2003-03-21
IPC分类号： G03B2126
CPC分类号： H04N9/3185 , G03B21/006 , H04N9/3194
摘要： A method displays an image on a display surface. First, structured patterns are projected on the display surface by multiple projectors Pi. Input images of the structured pattern are acquired. Each input image is acquired by a camera Ci in a fixed physical relationship to a corresponding one of the projectors. The correspondences are triangulated to determine a quadric transfer TPiCk. Quadric transfer parameters are determined of the quadric transfer T. Output images from the projectors are warped according to the quadric transfer and the quadric transfer parameters.
摘要翻译： 方法在显示面上显示图像。 首先，结构化图案由多个投影仪Pi投影在显示表面上。 获取结构化图案的输入图像。 每个输入图像由相机Ci以与对应的一个投影仪的固定物理关系获取。 通信被三角测量以确定二次转移TPiCk。 二次转移参数由二次转移T确定。投影机的输出图像根据二次转移和二次转移参数而变形。
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3.发明授权Method for determining a largest inscribed rectangular image within a union of projected quadrilateral images 有权用于确定投影四边形图像的联合内的最大内切矩形图像的方法公开(公告)号：US06729733B1
公开(公告)日：2004-05-04
申请号：US10394684
申请日：2003-03-21
IPC分类号： G03B2100
CPC分类号： H04N9/3147 , H04N5/74 , H04N9/12 , H04N9/3185 , H04N9/3194
摘要： A method determines a largest rectangle on a display surface. A polygon L is drawn on a first depth plane having a depth z=1 in a depth buffer. A rectangle R is drawn with a predetermined aspect ratio on a second depth plane having a depth z=0. A center of projection is determined with a minimum depth z in a range [0,1] that maps the rectangle R into a largest rectangle S in the first depth plane so that the rectangle S remains completely inside the polygon L.
摘要翻译： 方法确定显示表面上的最大矩形。 多边形L在深度缓冲器中在具有深度z = 1的第一深度平面上绘制。 在深度为z = 0的第二深度平面上以预定的纵横比绘制矩形R. 确定投影中心的最小深度z在[...]的范围内，将矩形R映射到第一深度平面中的最大矩形S，使矩形S完全保留在多边形L的内部。
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4.发明授权System and method for mechanically adjusting projector pose with six degrees of freedom for image alignment 失效用于机械调节投影机姿态的系统和方法，具有六个自由度，用于图像对齐公开(公告)号：US07252387B2
公开(公告)日：2007-08-07
申请号：US11084876
申请日：2005-03-21
申请人： Ramesh Raskar , Jeroen van Baar
发明人： Ramesh Raskar , Jeroen van Baar
CPC分类号： H04N9/3194 , G03B21/142 , G03B21/147 , G03B37/04 , H04N5/74 , H04N9/3185
摘要： A method adjusts a pose of a projector with respect to a display surface. A homography HD,P is determined between a display surface and a projector. The homography HD,P is decomposed into rotation and translation parameters expressing a pose MP of the projector. An ideal pose M0 of the projector corresponding to an ideal homography H0 is determined. A pose adjustment MA is determined according to MA=M0(MP)−1. The pose adjustment MA is decomposed into rotation and translation adjustment parameters. Then, the projector is adjusted mechanically to the ideal pose M0 according to the rotation and translation adjustment parameters.
摘要翻译： 一种方法调节投影仪相对于显示表面的姿态。 在显示表面和投影仪之间确定单应性H D D，P。。 单应H，D，P分解成表示投影仪姿势M P P的旋转和平移参数。 确定对应于理想单对应H 0 0的投影机的理想姿势M 0 0 。 姿势调整M A A根据M A = M 0（M P）来确定， 1 。 姿势调整M A A被分解为旋转和平移调整参数。 然后，根据旋转和平移调节参数，将投影机机械地调整到理想姿势M 0 0。
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公开(公告)号：US07154395B2
公开(公告)日：2006-12-26
申请号：US10883235
申请日：2004-07-01
IPC分类号： G08B1/08
CPC分类号： G06K19/0728 , G01S5/16 , G06K7/10079 , G06K19/0723
摘要： A wireless location and identification system includes a controller and a tag. The controller has a projector configured to generate a unique temporal sequence of light intensities for each pixel in an output image of the projector and a wireless transceiver configured to emit an output signal and receive an input signal. The tag includes a photo-sensor configured to sense the unique temporal sequence of light intensities of a particular pixel, a transducer configured to receive the output signal from the transceiver, and a means for modulating, according to the unique temporal sequence of light intensities, the input signal for the transceiver in response to receiving the output signal and sensing the unique temporal sequence of light intensities of the particular pixel to indicate a location of the tag to the controller.
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公开(公告)号：US20060001839A1
公开(公告)日：2006-01-05
申请号：US10883224
申请日：2004-07-01
申请人： Paul Beardsley , Jeroen van Baar , Ramesh Raskar
发明人： Paul Beardsley , Jeroen van Baar , Ramesh Raskar
IPC分类号： G03B21/00
CPC分类号： H04N9/3185 , G03B17/54 , G03B21/26 , H04N5/74 , H04N9/3194
摘要： A rigidly-coupled projector-camera system is augmented with laser pointers. The projector-camera system and lasers can be used to determine homography between the projector and a display surface, so that a projection of any desired geometry can be made on the display surface.
摘要翻译： 激光指针增强了刚性耦合的投影机相机系统。 可以使用投影仪相机系统和激光器来确定投影仪和显示表面之间的单应性，使得可以在显示表面上进行任何期望的几何形状的投影。
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公开(公告)号：US06811264B2
公开(公告)日：2004-11-02
申请号：US10394314
申请日：2003-03-21
IPC分类号： G03B2114
CPC分类号： G06T3/0081 , G03B37/04 , G06K9/2036 , G06T5/006 , H04N9/3147 , H04N9/3185 , H04N9/3194
摘要： An apparatus for projecting an output image on a display surface includes a processing unit. The processing unit includes a microprocessor, a memory and an I/O interface connected by buses. A projector sub-system coupled to the processing unit is for display output images on the display surface. A camera sub-system couple to the processing unit is for acquiring input images reflecting a geometry of the display surface. The camera sub-system is in a fixed physical relationship to the projector sub-system. Internal sensors coupled to the processing unit are for determining an orientation of the projector sub-system and the camera sub-system with respect to the display surface.
摘要翻译： 用于在显示表面上投影输出图像的装置包括处理单元。 处理单元包括微处理器，存储器和通过总线连接的I / O接口。 耦合到处理单元的投影仪子系统用于在显示表面上显示输出图像。 耦合到处理单元的相机子系统用于获取反映显示表面几何形状的输入图像。 相机子系统与投影机子系统处于固定的物理关系。 耦合到处理单元的内部传感器用于确定投影仪子系统和相机子系统相对于显示表面的取向。
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公开(公告)号：US06755537B1
公开(公告)日：2004-06-29
申请号：US10393686
申请日：2003-03-21
IPC分类号： G03B2126
CPC分类号： H04N9/3147 , H04N5/74 , H04N9/3194
摘要： A method forms a cluster from a set of projectors. Each projector in the set includes a projector sub-system in a fixed physical relationship to a camera sub-system, and a communication sub-system for sending and receiving messages. A calibrate message is received in the projectors via the communications sub-system. A ready message is broadcast by the projectors using the communications sub-system. A structured pattern is projected sequentially by each of the projectors on a display surface using the projector sub-system. An input image of the structured pattern is acquired sequentially by each of the projectors using the camera sub-system. The projectors are globally aligned with each other and the display surface according to the input images.
摘要翻译： 一种方法从一组投影机形成一个集群。 该组中的每个投影仪包括与照相机子系统固定物理关系的投影仪子系统和用于发送和接收消息的通信子系统。 通过通信子系统在投影机中接收校准信息。 投影机使用通信子系统广播就绪消息。 使用投影仪子系统，在显示表面上通过每个投影仪依次投影结构化图案。 使用相机子系统的每个投影仪顺序地获取结构化图案的输入图像。 投影机根据输入图像在全球范围内对准显示面。
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公开(公告)号：US07137707B2
公开(公告)日：2006-11-21
申请号：US10883224
申请日：2004-07-01
CPC分类号： H04N9/3185 , G03B17/54 , G03B21/26 , H04N5/74 , H04N9/3194
摘要： A rigidly-coupled projector-camera system is augmented with laser pointers. The projector-camera system and lasers can be used to determine homography between the projector and a display surface, so that a projection of any desired geometry can be made on the display surface.
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公开(公告)号：US06834965B2
公开(公告)日：2004-12-28
申请号：US10394688
申请日：2003-03-21
IPC分类号： G03B2126
CPC分类号： G03B21/26
摘要： A system projects multiple output images on a display surface. The system includes multiple projectors. Each projector includes a processing unit. The processing unit includes a microprocessor, a memory and an I/O interface connected by busses. A projector sub-system coupled to the processing unit is for displaying output images on the display surface. A camera sub-system coupled to the processing unit is for acquiring input images reflecting a geometry of the display surface. The camera sub-system is in a fixed physical relationship to the projector sub-system. A network sub-system coupled to the processing unit is for communicating messages between the projectors. Internal sensors coupled to the processing unit are for determining an orientation of the projector sub-system and the camera sub-system with respect to the display surface.
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