Measurement system, image correction method, and computer program
    1.
    发明授权
    Measurement system, image correction method, and computer program 有权
    测量系统,图像校正方法和计算机程序

    公开(公告)号:US09179106B2

    公开(公告)日:2015-11-03

    申请号:US12975287

    申请日:2010-12-21

    摘要: A measurement system includes an illumination unit, imaging unit, acquisition unit and correction unit. A measurement target is irradiated with illumination light. The imaging unit captures an image of light reflected by or transmitted through the measurement target. The acquisition unit acquires positional relationship information representing a positional relationship between the illumination unit and the measurement target and between the imaging unit and the measurement target. The correction unit corrects a luminance of at least one of the illumination light emitted by the illumination unit and the captured image based on the positional relationship information in such a way as to correct a luminance change of the measurement target image, wherein at least two of the measurement target, the illumination unit, and the imaging unit are variable in spatial position.

    摘要翻译: 测量系统包括照明单元,成像单元,采集单元和校正单元。 用照明光照射测定对象物。 成像单元捕获由测量目标反射或透射的光的图像。 获取单元获取表示照明单元和测量对象之间以及成像单元与测量对象之间的位置关系的位置关系信息。 校正单元基于位置关系信息校正照明单元发射的照明光和拍摄图像中的至少一个的亮度,以校正测量目标图像的亮度变化,其中至少两个 测量对象,照明单元和成像单元在空间位置上是可变的。

    Automated stereo-photogrammetric instrument
    2.
    发明授权
    Automated stereo-photogrammetric instrument 失效
    自动立体照相仪

    公开(公告)号:US3783294A

    公开(公告)日:1974-01-01

    申请号:US3783294D

    申请日:1972-05-19

    申请人: WILD HEERBRUGG AG

    发明人: KOPER R

    CPC分类号: G01C11/26 G01C11/00 G01C11/06

    摘要: An automated photogrammetric instrument adapted to observe conjugate areas in a stereo-pair of photographs for the purpose of determining terrain elevation and for carrying out other measurements. In order to measure X-parallax, the instrument includes means to scan each of the photographs along a path in which X-parallax is present, but which is substantially free of Y-parallax and the effects of image rotation, thereby producing first and second video signals representative of the scanned paths in the pair of photographs. The first and second video signals are applied to a correlator to produce an output value reflecting the degree of differential X-parallax.

    摘要翻译: 一种自动摄影测量仪器,用于观察立体对照片中的共轭区域,以确定地形高程和进行其他测量。 为了测量X视差,仪器包括沿着X视差存在的路径扫描每个照片的装置,但是其基本上没有Y视差和图像旋转的影响,从而产生第一和第二 视频信号表示该对照片中的扫描路径。 第一和第二视频信号被施加到相关器以产生反映差分X视差程度的输出值。

    Method for RPC refinement by means of a corrective 3D rotation

    公开(公告)号:US11933612B2

    公开(公告)日:2024-03-19

    申请号:US17381554

    申请日:2021-07-21

    申请人: Kayrros

    摘要: The invention relates to computer-implemented method for the 3D reconstruction of a ground surface area by stereophotogrammetry, comprising the steps of:



    determining corrected Rational Polynomial Camera, RPC, models by performing bundle adjustment (BA) of original RPC models each provided with an image of a set of images of the ground surface area acquired by a remote imaging sensor and each associated to a corresponding original projection function ({Pm}) from a 3D object space to a 2D image space, wherein determining the corrected RPC models comprises determining corrected projection functions ({Pmcor}) from the 3D object space to the 2D image space; and
    determining (PC) a 3D point cloud representative (3DPC) of the ground surface area by triangulation, based on the corrected RPC models, of stereo correspondences within images of the set of images.




    In accordance with the invention, determining the corrected projection functions comprises determining, for each of the original projection function, a 3D corrective rotation around a remote imaging sensor center to be applied in the 3D space before performing the original projection function.

    Multi position alignment system
    4.
    发明申请
    Multi position alignment system 审中-公开
    多位置对位系统

    公开(公告)号:US20030002034A1

    公开(公告)日:2003-01-02

    申请号:US10171959

    申请日:2002-06-13

    IPC分类号: G01C001/00 G01B011/26

    CPC分类号: G01C11/26 G01C15/00

    摘要: An alignment system for determining the alignment of a plurality of components has a plurality of targets (2), one target being associated with each component. An optical arrangement (4, 1) is associated with each target, for selectively providing an image of the associated target within the field of view of an optical viewing device. This arrangement enables the image of a single target to be in the line of sight of a viewing device (for example telescope), so that the depth can be determined unambiguously.

    摘要翻译: 用于确定多个部件的对准的对准系统具有多个目标(2),一个目标与每个部件相关联。 光学装置(4,1)与每个目标相关联,用于在光学观察装置的视野内选择性地提供相关联的目标的图像。 这种布置使得单个目标的图像处于观察装置(例如望远镜)的视线中,使得可以明确地确定深度。

    Apparatus and method for determining object elevation and height from
images thereof
    6.
    发明授权
    Apparatus and method for determining object elevation and height from images thereof 失效
    用于从其图像确定物体高度和高度的装置和方法

    公开(公告)号:US4724526A

    公开(公告)日:1988-02-09

    申请号:US649790

    申请日:1984-09-11

    CPC分类号: G01C11/26

    摘要: A cartographic apparatus for determination of the elevations of features and heights of objects from stereoscopic images of complementing input records includes a parallax bar and movable reticles for generating a floating mark over points of interest in the records. The apparatus also includes a microprocessor to compute compensation factors based on values determined during initial set up and means responsive to those factors to compensate automatically for y parallax and for errors in x parallax difference as the floating mark is moved and to compute automatically object heights and feature elevations.

    摘要翻译: 用于确定来自补充输入记录的立体图像的物体的特征和高度的高程的制图设备包括视差条和用于在记录中的兴趣点上产生浮动标记的可动光栅。 该装置还包括微处理器,用于基于在初始设置期间确定的值来计算补偿因子,并且响应于这些因素自动补偿y视差以及随着浮动标记移动而在x视差中的误差的装置并且自动计算物体高度和 特征高程。

    MEASUREMENT SYSTEM, IMAGE CORRECTION METHOD, AND COMPUTER PROGRAM
    7.
    发明申请
    MEASUREMENT SYSTEM, IMAGE CORRECTION METHOD, AND COMPUTER PROGRAM 有权
    测量系统,图像校正方法和计算机程序

    公开(公告)号:US20110157353A1

    公开(公告)日:2011-06-30

    申请号:US12975287

    申请日:2010-12-21

    IPC分类号: H04N7/18

    摘要: A measurement system includes an illumination unit configured to irradiate a measurement target with illumination light, an imaging unit configured to capture an image of light reflected by or transmitted through the measurement target, an acquisition unit configured to acquire positional relationship information representing a positional relationship between the illumination unit and the measurement target and a positional relationship between the imaging unit and the measurement target, and a correction unit configured to correct a luminance of at least one of the illumination light emitted by the illumination unit and the image captured by the imaging unit based on the positional relationship information in such a way as to correct a luminance change of the measurement target image captured by the imaging unit, wherein at least two of the measurement target, the illumination unit, and the imaging unit are variable in spatial position.

    摘要翻译: 一种测量系统,包括:被配置为用照射光照射测量对象的照明单元,被配置为捕获由测量对象反射或透射的光的图像的摄像单元,被配置为获取表示所述测量对象之间的位置关系的位置关系信息; 所述照明单元和所述测量对象以及所述摄像单元与所述测量对象之间的位置关系,以及校正单元,被配置为校正由所述照明单元发射的照明光和由所述摄像单元拍摄的图像中的至少一个的亮度 基于所述位置关系信息,以校正由所述摄像单元拍摄的所述测量对象图像的亮度变化,其中所述测量对象,所述照明单元和所述摄像单元中的至少两个在空间位置上是可变的。

    Method and tool for determining on a vehicle, especially an aircraft,
the harmonization error of an equipment item
    8.
    发明授权
    Method and tool for determining on a vehicle, especially an aircraft, the harmonization error of an equipment item 失效
    用于在车辆,特别是飞行器上确定设备项目的协调误差的方法和工具

    公开(公告)号:US6014814A

    公开(公告)日:2000-01-18

    申请号:US968608

    申请日:1997-11-13

    IPC分类号: G01C11/26 G01C25/00 G01C15/00

    CPC分类号: G01C25/00 G01C11/26

    摘要: The present invention relates to a method and tool for determining on a vehicle (V), especially an aircraft, the harmonization error of an on board equipment item (1) with respect to a vehicle reference frame (Rv). According to the invention, the tool comprises an element (4) representing the vehicle reference frame (Rv), an element (5) arranged at the site of the equipment item and representing said equipment item (1), a theodolite (6) taking measurements on said elements (4, 5), directly or through a prism system (7), an inclination meter (8) measuring the pitching on the second element (5) and a calculator (9) determining the harmonization error from said measurements.

    摘要翻译: 本发明涉及一种用于在车辆(V),特别是飞机上确定车载设备(1)相对于车辆参考系(Rv)的协调误差的方法和工具。 根据本发明,该工具包括表示车辆参考系(Rv)的元件(4),布置在设备项目现场并表示所述设备项目(1)的元件(5),经纬仪(6) 在所述元件(4,5)上直接或通过棱镜系统(7),测量第二元件(5)上的俯仰的倾斜仪(8)和从所述测量确定协调误差的计算器(9)对所述元件(4,5)进行测量。

    Image transformation system with variable delay
    9.
    发明授权
    Image transformation system with variable delay 失效
    具有可变延迟的图像变换系统

    公开(公告)号:US3958232A

    公开(公告)日:1976-05-18

    申请号:US479470

    申请日:1974-06-14

    IPC分类号: G01C11/26 G09G1/16 G06F3/14

    CPC分类号: G09G3/003 G01C11/26 G09G1/16

    摘要: A system for the discontinuous transformation of visual images utilizing a variable delay. The visual image to be transformed is first converted to a time-varying video signal. This signal is then converted to a digital signal which is fed to a delay circuit whose time delay can be instantaneously varied. The exemplary delay circuit shown includes a random access memory which is usedc to store and release the stored digital information as a function of the desired delay. The output of the delay circuit can then be inverted to achieve the transformed visual image.