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    Markerless geometric registration of multiple projectors on extruded surfaces using an uncalibrated camera
    1.
    发明授权
    Markerless geometric registration of multiple projectors on extruded surfaces using an uncalibrated camera 有权
    使用未校准的相机对挤压表面上的多台投影机进行无标记几何配准

    公开(公告)号：US09195121B2

    公开(公告)日：2015-11-24

    申请号：US13318092

    申请日：2010-04-28

    申请人： Behzad Sajadi ,  Aditi Majumder

    发明人： Behzad Sajadi ,  Aditi Majumder

    IPC分类号： H04N13/02 ,  G03B21/14 ,  H04N9/31

    CPC分类号： G03B21/14 ,  G03B21/13 ,  G03B37/04 ,  H04N9/3147 ,  H04N9/3185 ,  H04N9/3194 ,  H04N9/3197

    摘要： A method for registering multiple projectors on a vertically extruded three dimensional display surface with a known aspect ratio includes recovering both the camera parameters and the three dimensional shape of the surface from a single image of the display surface from an uncalibrated camera, capturing images from the projectors to relate the projector coordinates with the display surface points, and segmenting parts of the image for each projector to register the projectors to create a seamlessly wall-paper projection on the display surface using a representation between the projector coordinates with display surface points using a rational Bezier patch. A method for performing a deterministic geometric auto-calibration to find intrinsic and extrinsic parameters of each projector is included.

    摘要翻译： 用于在具有已知纵横比的垂直挤出的三维显示表面上登记多个投影仪的方法包括从未校准的相机从显示表面的单个图像恢复相机参数和表面的三维形状，从 将投影仪坐标与显示表面点相关联，并且分割每个投影仪的图像的部分以登记投影仪，以使用投影仪坐标与显示表面点之间的表示在显示表面上创建无缝墙纸投影，使用 理性Bezier补丁。 包括用于执行确定性几何自动校准以找出每个投影仪的内在和外在参数的方法。

    Scalable distributed/cooperative/collaborative paradigm for multi-user interaction with projection-based display walls
    4.
    发明授权
    Scalable distributed/cooperative/collaborative paradigm for multi-user interaction with projection-based display walls 有权
    可扩展的分布式/协作式/协作式范例，用于与基于投影的显示墙的多用户交互

    公开(公告)号：US08872799B2

    公开(公告)日：2014-10-28

    申请号：US13276450

    申请日：2011-10-19

    申请人： Aditi Majumder

    发明人： Aditi Majumder

    IPC分类号： G06F3/042 ,  G06F3/01 ,  H04N9/31

    CPC分类号： G06F3/017 ,  H04N9/3147

    摘要： A method of distributed/cooperative/collaborative gesture management may comprise queuing actions of gestures as the gestures move across a display, processing the actions of each of the gestures by a projector in which the projector's display is close to a gesture, sending an anticipatory action message that one of the gestures is predicted to enter a display region of a projector, processing the actions of one of the gestures by a projector in which the projector's display is close to the one of the gestures, and in response to the one of the gestures being in an overlapping display projected by overlapping projectors, the actions of the one of the gestures are processed by the overlapping projector with the smallest identifier.

    摘要翻译： 一种分布式/协同式/协同式手势管理方法可以包括手势在显示器上移动时对手势的排队动作，通过投影仪处理每个手势的动作，其中投影仪的显示器靠近手势，发送预期动作 消息，其中一个手势被预测进入投影仪的显示区域，通过投影仪处理其中一个手势的动作，其中投影仪的显示器接近于其中一个手势，并响应于 手势处于由重叠的投影仪投影的重叠显示中，其中一个手势的动作由具有最小标识符的重叠投影仪处理。

    COLOR SEAMLESSNESS ACROSS TILED MULTI-PROJECTOR DISPLAYS
    5.
    发明申请
    COLOR SEAMLESSNESS ACROSS TILED MULTI-PROJECTOR DISPLAYS 有权
    通过倾斜多投影机显示的无色无缝

    公开(公告)号：US20120069022A1

    公开(公告)日：2012-03-22

    申请号：US13318104

    申请日：2010-04-28

    申请人： Aditi Majumder ,  Gopi Meenakshisundaram ,  Behzad Sajadi

    发明人： Aditi Majumder ,  Gopi Meenakshisundaram ,  Behzad Sajadi

    IPC分类号： G06T15/50

    CPC分类号： G03B37/04 ,  G03B21/13 ,  H04N9/3129 ,  H04N9/3147 ,  H04N9/3182

    摘要： A method includes generating in a computer a representation for the color transfer function both direct and inverse, of a nonideal source device to those in a target device significantly different than the source device, using higher-dimensional Bezier patches by using a non-linear parameterization of the Bezier patches in the XYZ space for converting the RGB colors in the source device. The method is illustrated in an application for processing spatial variation in luminance and chrominance in a multiple projector display, which include the steps of balancing per projector white point, morphing per pixel chrominance gamut, constraining per pixel perceptual luminance; and smoothing per pixel Bezier based luminance.

    摘要翻译： 一种方法包括在计算机中生成非理想源设备的颜色传递函数的表示，以及与源设备显着不同的目标设备中的颜色传递函数的表示，通过使用非线性参数化来使用更高维的贝塞尔曲线 的在ZZZ空间中的Bezier补丁，用于转换源设备中的RGB颜色。 该方法在用于处理多投影仪显示器中的亮度和色度空间变化的应用中被说明，其包括以下步骤：平衡每个投影仪白点，每像素色度色域变形，每像素感知亮度的约束; 并平滑每像素贝塞尔的亮度。

    Apparatus and method for self-calibrating multi-projector displays via plug and play projectors
    6.
    发明授权
    Apparatus and method for self-calibrating multi-projector displays via plug and play projectors 有权
    通过即插即用投影机自动校准多台投影机显示器的装置和方法

    公开(公告)号：US07942530B2

    公开(公告)日：2011-05-17

    申请号：US11704412

    申请日：2007-02-08

    申请人： Aditi Majumder ,  Pinaki Sinha ,  Ezekiel S. Bhasker

    发明人： Aditi Majumder ,  Pinaki Sinha ,  Ezekiel S. Bhasker

    IPC分类号： G03B21/26 ,  G03B21/14 ,  G06K9/40 ,  H04N5/66 ,  H04N9/12 ,  G09G5/00

    CPC分类号： G03B21/26 ,  G06F3/1446 ,  G09G3/002 ,  G09G3/36 ,  G09G2320/0693 ,  G09G2320/08 ,  G09G2330/08 ,  G09G2370/16 ,  H04N9/3147 ,  H04N9/3182 ,  H04N9/3194

    摘要： An asynchronous, distributed, and calibrated apparatus provides a composite display from a plurality of plug-and-play projectors. The apparatus comprises a plurality of self-sufficient modules. Each module comprises at least one plug-and-play projector of the plurality of plug-and-play projectors. A camera is coupled to the projector. A software or firmware controlled, computation and communication circuit is coupled to the projector and executes a single-program-multiple-data (SPMD) calibration algorithm that simultaneously runs on each self-sufficient module to generate a scalable and reconfigurable composite display without any need for user input or a central server.

    摘要翻译： 异步，分布和校准的设备提供来自多个即插即用投影仪的复合显示器。 该装置包括多个自给自足的模块。 每个模块包括多个即插即用投影仪中的至少一个即插即用投影仪。 相机连接到投影机。 软件或固件控制的计算和通信电路耦合到投影仪，并且执行单个程序多数据（SPMD）校准算法，其同时在每个自足模块上运行以生成可扩展和可重新组合的复合显示器，而无需任何需要 用于用户输入或中央服务器。

    Method to smooth photometric variations across multi-projector displays
    7.
    发明授权
    Method to smooth photometric variations across multi-projector displays 失效
    在多台投影仪显示屏上平滑光度变化的方法

    公开(公告)号：US07038727B2

    公开(公告)日：2006-05-02

    申请号：US10283991

    申请日：2002-10-30

    申请人： Aditi Majumder ,  Rick L. Stevens

    发明人： Aditi Majumder ,  Rick L. Stevens

    IPC分类号： H04N5/66

    CPC分类号： H04N9/3147 ,  H04N9/12 ,  H04N9/3185 ,  H04N9/3194

    摘要： A method is provided to smooth photometric variations across multi-projector displays. Photometric calibration is performed to generate a luminance attenuation map (LAM) for each projector. An image for each projector is modified using the luminance attenuation map (LAM) for each projector to provide image correction in real time. In the photometric calibration step a digital camera is used to measure the color response of the multi-projector display. Using the generated luminance attenuation map (LAM) for each projector for image correction in real time smoothes out distracting color variations across the multi-projector display while maximizing a perceived dynamic range of the display.

    摘要翻译： 提供了一种在多投影机显示屏上平滑光度变化的方法。 执行光度校准以产生每个投影仪的亮度衰减图（LAM）。 每个投影机的图像使用每个投影仪的亮度衰减图（LAM）进行修改，以实时提供图像校正。 在光度校准步骤中，数码相机用于测量多投影机显示器的颜色响应。 为每个用于图像校正的投影仪使用生成的亮度衰减图（LAM）实时平滑跨多重投影仪显示的分散的颜色变化，同时最大化显示器的感知动态范围。

    Color seamlessness across tiled multi-projector displays
    8.
    发明授权
    Color seamlessness across tiled multi-projector displays 有权
    拼接式多功能投影机显示色彩无缝

    公开(公告)号：US09052584B2

    公开(公告)日：2015-06-09

    申请号：US13318104

    申请日：2010-04-28

    申请人： Aditi Majumder ,  Gopi Meenakshisundaram ,  Behzad Sajadi

    发明人： Aditi Majumder ,  Gopi Meenakshisundaram ,  Behzad Sajadi

    IPC分类号： H04N9/31 ,  G03B37/04 ,  G03B21/13

    CPC分类号： G03B37/04 ,  G03B21/13 ,  H04N9/3129 ,  H04N9/3147 ,  H04N9/3182

    摘要： A method includes generating in a computer a representation for the color transfer function both direct and inverse, of a nonideal source device to those in a target device significantly different than the source device, using higher-dimensional Bezier patches by using a non-linear parameterization of the Bezier patches in the XYZ space for converting the RGB colors in the source device. The method is illustrated in an application for processing spatial variation in luminance and chrominance in a multiple projector display, which include the steps of balancing per projector white point, morphing per pixel chrominance gamut, constraining per pixel perceptual luminance; and smoothing per pixel Bezier based luminance.

    摘要翻译： 一种方法包括在计算机中生成非理想源设备的颜色传递函数的表示，以及与源设备显着不同的目标设备中的颜色传递函数的表示，通过使用非线性参数化来使用更高维的贝塞尔曲线 的在ZZZ空间中的Bezier补丁，用于转换源设备中的RGB颜色。 该方法在用于处理多投影仪显示器中的亮度和色度空间变化的应用中被说明，其包括以下步骤：平衡每个投影仪白点，每像素色度色域变形，每像素感知亮度的约束; 并平滑每像素贝塞尔的亮度。

    Projector with enhanced resolution via optical pixel sharing
    10.
    发明授权
    Projector with enhanced resolution via optical pixel sharing 有权
    投影机通过光学像素共享增强分辨率

    公开(公告)号：US09183771B2

    公开(公告)日：2015-11-10

    申请号：US13566089

    申请日：2012-08-03

    申请人： Aditi Majumder ,  Behzad Sajadi ,  Gopi Meenakshisundaram

    发明人： Aditi Majumder ,  Behzad Sajadi ,  Gopi Meenakshisundaram

    IPC分类号： G09G5/10 ,  G06T17/00 ,  G09G3/00 ,  G03B21/00 ,  H04N9/31

    CPC分类号： G09G3/002 ,  G03B21/006 ,  G09G3/007 ,  G09G2300/023 ,  G09G2340/0407 ,  H04N9/3188

    摘要： A projector configured to provide higher resolution output without increasing pixel resolution in a light modulator is disclosed. The projector may introduce an optical element between a light modulator and an imaging lens. The optical element may provide pixel sharing of a target image. The pixel sharing may be produced by, for example, making smaller copies of pixels. Selected copies of pixels may be passed to the imaging lens to display an output image with selected areas of higher density pixels.

    摘要翻译： 公开了一种配置成在光调制器中不增加像素分辨率的情况下提供更高分辨率输出的投影仪 投影仪可以在光调制器和成像透镜之间引入光学元件。 光学元件可以提供目标图像的像素共享。 可以通过例如制作更小的像素副本来产生像素共享。 像素的所选副本可以被传递到成像透镜以显示具有较高密度像素的选定区域的输出图像。