公开(公告)号：US20080013943A1

公开(公告)日：2008-01-17

申请号：US11530413

申请日：2006-09-08

Applicant: Janos Rohaly ,  Douglas Hart ,  Thomas Brukilacchio

Inventor： Janos Rohaly ,  Douglas Hart ,  Thomas Brukilacchio

IPC: G03B41/08

CPC classification number: G03B41/00 ,  G03B35/00

Abstract: A three-dimensional imaging system uses a single primary optical lens along with various configurations of apertures, refocusing facilities, and the like to obtain three offset optical channels each of which can be separately captured with an optical sensor.

Abstract translation: 三维成像系统使用单个主要光学透镜以及孔径，重新聚焦设备等的各种配置，以获得三个偏移光学通道，每个光学通道可以与光学传感器分开地捕获。

公开(公告)号：US20080031513A1

公开(公告)日：2008-02-07

申请号：US11725585

申请日：2007-03-19

Applicant: Douglas Hart

Inventor： Douglas Hart

IPC: G06K9/00

CPC classification number: G01B11/2545 ,  G06T7/521

Abstract: A high-speed three-dimensional imaging system includes a single lens camera subsystem with an active imaging element and CCD element, and a correlation processing subsystem. The active imaging element can be a rotating aperture which allows adjustable non-equilateral spacing between defocused images to achieve greater depth of field and higher sub-pixel displacement accuracy. A speckle pattern is projected onto an object and images of the resulting pattern are acquired from multiple angles. The images are locally cross-correlated using a sparse array image correlation technique and the surface is resolved by using relative camera position information to calculate the three-dimensional coordinates of each locally correlated region. Increased resolution and accuracy are provided by recursively correlating the images down to the level of individual points of light and using the Gaussian nature of the projected speckle pattern to determine subpixel displacement between images. Processing is done at very high-speeds by compressing the images before they are correlated. Correlation errors are eliminated during processing by a technique based on the multiplication of correlation table elements from one or more adjacent regions.

Abstract translation: 高速三维成像系统包括具有主动成像元件和CCD元件的单镜头相机子系统和相关处理子系统。 有源成像元件可以是旋转孔径，其允许散焦图像之间的可调节的非等边间隔以实现更大的景深和更高的子像素位移精度。 将斑点图案投影到物体上，并且从多个角度获取所得图案的图像。 使用稀疏阵列图像相关技术，图像是局部相互关联的，并且通过使用相对相机位置信息来解析表面以计算每个局部相关区域的三维坐标。 通过将图像递归地关联到各个光点的水平并且使用投影散斑图案的高斯特性来确定图像之间的子像素位移来提供分辨率和精度的提高。 通过在图像相关之前压缩图像，以非常高的速度进行处理。 通过基于来自一个或多个相邻区域的相关表格元素的乘法的技术来处理相关误差。

公开(公告)号：US4788437A

公开(公告)日：1988-11-29

申请号：US910537

申请日：1986-09-23

Applicant: Donald A. Urquhart ,  Douglas Hart

Inventor： Donald A. Urquhart ,  Douglas Hart

IPC: F21K99/00 ,  G21H3/02 ,  H01J65/08 ,  H01L31/04 ,  F21K2/00

CPC classification number: F21K99/00 ,  G21H3/02 ,  H01J65/08 ,  F21Y2103/00 ,  F21Y2115/20

Abstract: A light assembly comprises a self-luminescent light source, a wave guide and output optics. The self-luminescent light source takes the form of a luminescent concentrator which is activated directly or indirectly by radioactive radiation, typically beta radiation from tritium.

Abstract translation: 灯组件包括自发光光源，波导和输出光学器件。 自发光光源采用发光浓缩器的形式，其通过放射性辐射直接或间接激活，通常来自氚的β辐射。

公开(公告)号：US20070075997A1

公开(公告)日：2007-04-05

申请号：US11534570

申请日：2006-09-22

Applicant: Janos Rohaly ,  Douglas Hart ,  Tong Zhang

Inventor： Janos Rohaly ,  Douglas Hart ,  Tong Zhang

IPC: G06T15/00

CPC classification number: G06T7/593 ,  G06T7/80 ,  G06T7/85 ,  G06T2207/10021 ,  G06T2207/30036

Abstract: Accuracy of a three-dimensional imaging system is improved through the use of model-based calibration and lookup tables to resolve distance according to, e.g., x-displacement, y-displacement, or image disparity data. In an embodiment, the lookup table(s) stores localized parameterization data used to calculate calibrated results.

Abstract translation: 通过使用基于模型的校准和查找表来根据例如x位移，y位移或图像视差数据来解析距离来改进三维成像系统的精度。 在一个实施例中，查找表存储用于计算校准结果的局部参数化数据。

公开(公告)号：US4935632A

公开(公告)日：1990-06-19

申请号：US271436

申请日：1988-11-15

Applicant: Douglas Hart

Inventor： Douglas Hart

IPC: F21K99/00 ,  G21H3/02 ,  H01J65/08

CPC classification number: F21K99/00 ,  G21H3/02 ,  H01J65/08

Abstract: A light assembly comprises a self-luminescent light source, a wave guide and output optics. The self-luminescent light source takes the form of a luminescent concentrator which is activated by beta radiation from tritium which is immobilized in a matrix in which a luminescent material is distributed.

Abstract translation: 灯组件包括自发光光源，波导和输出光学器件。 自发光光源采用发光浓缩器的形式，其由来自氚的β辐射激活，其固定在分布有发光材料的基质中。