4D light field cameras
    21.
    发明授权
    4D light field cameras 有权
    4D光场相机

    公开(公告)号:US07792423B2

    公开(公告)日:2010-09-07

    申请号:US11671701

    申请日:2007-02-06

    IPC分类号: G03B13/00

    CPC分类号: G02B27/0075

    摘要: A camera acquires a 4D light field of a scene. The camera includes a lens and sensor. A mask is arranged in a straight optical path between the lens and the sensor. The mask including an attenuation pattern to spatially modulate the 4D light field acquired of the scene by the sensor. The pattern has a low spatial frequency when the mask is arranged near the lens, and a high spatial frequency when the mask is arranged near the sensor.

    摘要翻译: 相机获取场景的4D光场。 相机包括镜头和传感器。 掩模布置在透镜和传感器之间的直线光路中。 掩模包括用于空间调制由传感器获取的场景的4D光场的衰减图案。 当掩模布置在透镜附近时,图案具有低空间频率,当掩模布置在传感器附近时,该图案具有高的空间频率。

    Agile Spectrum Imaging Apparatus and Method
    23.
    发明申请
    Agile Spectrum Imaging Apparatus and Method 审中-公开
    敏捷光谱成像设备及方法

    公开(公告)号:US20090201498A1

    公开(公告)日:2009-08-13

    申请号:US12028944

    申请日:2008-02-11

    IPC分类号: G01J3/04

    摘要: An optical system performs agile spectrum imaging. The system includes a first lens for focusing light from a light source. The focused light is dispersed over a spectrum of wavelengths. A second lens focuses the dispersed light onto a mask. The mask selectively attenuates the wavelengths of the spectrum of the light source onto an image plane of the light destination. Depending on the arrangement of the light source and destination, the system can act as a 2. The apparatus of claim 1, in which the light source is a scene and the light destination is sensor, and the apparatus operates as an agile spectrum camera, viewer, spectrum projector, or light source. The arrangement can also be combined to provide a stereo vision system.

    摘要翻译: 光学系统执行敏捷光谱成像。 该系统包括用于聚焦来自光源的光的第一透镜。 聚焦的光被分散在一束波长上。 第二个透镜将分散的光聚焦到掩模上。 掩模选择性地将光源的光谱的波长衰减到光目的地的图像平面上。 根据光源和目的地的布置,系统可以充当2.如权利要求1所述的装置,其中所述光源是场景,所述光目的地是传感器,并且所述设备作为敏捷光谱摄像机操作, 观看者,频谱投影仪或光源。 该装置也可以组合以提供立体视觉系统。

    Light pen system for pixel-based displays
    24.
    发明授权
    Light pen system for pixel-based displays 有权
    用于基于像素的显示器的光笔系统

    公开(公告)号:US07421111B2

    公开(公告)日:2008-09-02

    申请号:US10704098

    申请日:2003-11-07

    IPC分类号: G06K9/00

    CPC分类号: G06F3/0321 G06F3/03542

    摘要: An interactive display system includes a pixel-based display surface and a light pen. A sequence of patterns is projected onto the display surface. The sequence of patterns has a unique sequence of light intensities for each location of the display surface. Intensities of light at an arbitrary location are sensed by the light pen while projecting the sequence of patterns. The intensifies of light are decoded to determine coordinates of the arbitrary location.

    摘要翻译: 交互式显示系统包括基于像素的显示表面和光笔。 图案序列被投影到显示表面上。 图案的序列对于显示表面的每个位置具有唯一的光强度序列。 在任意位置处的光的强度由光笔感测,同时投影图案序列。 光的强化被解码以确定任意位置的坐标。

    4D light field cameras
    25.
    发明申请
    4D light field cameras 有权
    4D光场相机

    公开(公告)号:US20080187305A1

    公开(公告)日:2008-08-07

    申请号:US11671701

    申请日:2007-02-06

    IPC分类号: G03B7/099

    CPC分类号: G02B27/0075

    摘要: A camera acquires a 4D light field of a scene. The camera includes a lens and sensor. A mask is arranged in a straight optical path between the lens and the sensor. The mask including an attenuation pattern to spatially modulate the 4D light field acquired of the scene by the sensor. The pattern has a low spatial frequency when the mask is arranged near the lens, and a high spatial frequency when the mask is arranged near the sensor.

    摘要翻译: 相机获取场景的4D光场。 相机包括镜头和传感器。 掩模布置在透镜和传感器之间的直线光路中。 掩模包括用于空间调制由传感器获取的场景的4D光场的衰减图案。 当掩模布置在透镜附近时,图案具有低空间频率,当掩模布置在传感器附近时,该图案具有高的空间频率。

    Context aware projector
    27.
    发明授权
    Context aware projector 有权
    上下文感知投影机

    公开(公告)号:US07292269B2

    公开(公告)日:2007-11-06

    申请号:US10412178

    申请日:2003-04-11

    IPC分类号: G03B21/56

    CPC分类号: H04N5/74 G06F3/011 G06T19/006

    摘要: A method displays an output image on an object. A set of unique markers are fixed to the object at predetermined locations. An input image of the object and the markers is acquired with a camera in a fixed physical relationship to a projector. A pose of the projector with respect to the markers is determined from the image. Then, one or more output images related to the object can be projected onto the object, at predetermine locations, according to the pose of the projector and the unique markers.

    摘要翻译: 一种方法在对象上显示输出图像。 一组独特的标记在预定位置固定到对象。 使用与投影仪的固定物理关系的相机获取对象和标记的输入图像。 根据图像确定投影仪相对于标记的姿态。 然后,根据投影机的姿态和独特的标记,可以在预先确定的位置将与对象相关的一个或多个输出图像投影到对象上。

    Position and orientation sensing with a projector
    28.
    发明授权
    Position and orientation sensing with a projector 有权
    使用投影机进行位置和方位感应

    公开(公告)号:US07242818B2

    公开(公告)日:2007-07-10

    申请号:US10346442

    申请日:2003-01-17

    IPC分类号: G06K9/36

    摘要: A position and orientation of a projector are determined from projected images. First, a homography between a camera and a planar surface, where the relationship between the camera and planar surface is fixed, is determined. Next, a known pattern is projected on the planar surface with a projector having known intrinsic parameters and an unknown position and orientation. An image of the known pattern is acquired with the camera, and a position and orientation of the projector is determined from the image using the homography and the intrinsic parameters.

    摘要翻译: 从投影图像确定投影仪的位置和方向。 首先,确定相机与平面之间的关系固定在相机和平面之间的单应性。 接下来,已知的图案用具有已知固有参数和未知位置和取向的投影仪投影在平面上。 使用相机获取已知图案的图像,并且使用单应性和内在参数从图像确定投影仪的位置和取向。

    Radio and optical identification tags
    29.
    发明授权
    Radio and optical identification tags 有权
    无线电和光学识别标签

    公开(公告)号:US07229023B2

    公开(公告)日:2007-06-12

    申请号:US10643614

    申请日:2003-08-19

    申请人: Ramesh Raskar

    发明人: Ramesh Raskar

    IPC分类号: G06K19/06 G06K7/08

    摘要: An identification tag is formed with a single microcircuit. The microcircuit includes an optical transceiver, a radio transceiver, both connected to a memory storing an identification code. At least one of the transceivers operates in receive mode, and at least one of the transceivers operates in transmit mode. The identification code is transmitted by the transceiver operating in the transmit mode in response to receiving a predetermined signal by the transceiver operating in the receive mode.

    摘要翻译: 识别标签用单个微电路形成。 微电路包括光收发器,无线电收发器,两者均连接到存储识别码的存储器。 收发器中的至少一个以接收模式操作,并且至少一个收发器以发送模式工作。 响应于以接收模式操作的收发机接收到预定信号,识别码由发射模式工作的收发器发送。

    Stylized imaging using variable controlled illumination
    30.
    发明授权
    Stylized imaging using variable controlled illumination 失效
    可变控制照明的风格化成像

    公开(公告)号:US07218792B2

    公开(公告)日:2007-05-15

    申请号:US10392067

    申请日:2003-03-19

    摘要: A method generates a stylized image. First, a set of images is acquired of a scene. Each image is acquired under a different lighting condition. Silhouette edges are detected in the set of images. Texture regions are identified in the set of images according to the silhouette edges, and an output image is generated from a combination of the set of images wherein the silhouette edges and the texture regions are altered so as to enhance or de-emphasize selected details.

    摘要翻译: 方法生成风格化图像。 首先,获取一组场景的图像。 每个图像在不同的照明条件下被采集。 在图像集中检测到轮廓边缘。 根据轮廓边缘在图像组中识别纹理区域,并且从图像组合的组合生成输出图像,其中轮廓边缘和纹理区域被改变以增强或去强调所选择的细节。