Enhanced Bundle Adjustment Techniques
    6.
    发明申请
    Enhanced Bundle Adjustment Techniques 有权
    增强捆绑调整技术

    公开(公告)号:US20150268043A1

    公开(公告)日:2015-09-24

    申请号:US14433347

    申请日:2013-09-30

    IPC分类号: G01C11/02

    摘要: Novel tools and techniques that can be used to enhance the effectiveness of photogrammetric tools, such as bundle adjustment. One set of techniques can include a photo-observable backsight operation, in which a position of target point can be observed non-photographically, and this observed position can be used to constrain a pixel coordinate location of the same target point in a bundle adjustment operation. Using another technique, a photo-observable check shot operation, the observed position of another target point can be used to verify the validity of a bundle adjustment calculation. Such techniques can be used together or separately.

    摘要翻译: 可用于提高摄影测量工具有效性的新型工具和技术,如束调整。 一组技术可以包括可照相观察的后视操作,其中可以非照相观察目标点的位置,并且该观察位置可以用于约束在束调整操作中的相同目标点的像素坐标位置 。 使用另一种技术,可以观察到的检查拍摄操作,可以使用另一个目标点的观察位置来验证束调整计算的有效性。 这些技术可以一起使用或分开使用。

    Optical pulse transmitter
    7.
    发明授权
    Optical pulse transmitter 有权
    光脉冲发射机

    公开(公告)号:US08743455B2

    公开(公告)日:2014-06-03

    申请号:US13381047

    申请日:2009-06-30

    IPC分类号: H01S5/06

    摘要: It is disclosed a method for driving a laser diode such as to enable mitigation or elimination of so called spiking effects related to the number of injected carriers in the laser overshooting the equilibrium value at the beginning of the lasing process. In this manner, among other things, the efficiency of a master oscillator power amplifier that may be utilized in range finding applications will be improved. It is further disclosed an optical pulse transmitter comprising such a laser diode.

    摘要翻译: 公开了一种用于驱动激光二极管的方法,以便能够减轻或消除与在激光过程开始时的激光器中的注入载流子数量相关的所谓峰值效应超过平衡值。 以这种方式,除了别的以外,可以提高可用于测距应用中的主振荡器功率放大器的效率。 还公开了一种包括这种激光二极管的光脉冲发射器。

    AIMING OF A GEODETIC INSTRUMENT
    8.
    发明申请
    AIMING OF A GEODETIC INSTRUMENT 有权
    地球仪器的瞄准

    公开(公告)号:US20100088910A1

    公开(公告)日:2010-04-15

    申请号:US12448547

    申请日:2007-01-25

    IPC分类号: G01C5/00

    CPC分类号: G01C15/002 G01C1/04

    摘要: A method for aiming a surveying instrument towards a selected target is disclosed. The method includes, in at least one embodiment, capturing an image using a camera in the surveying instrument; selecting a target by identifying an object point in the image captured by the surveying instrument; calculating first horizontal and vertical rotation angles based on the object point identified in the image; rotating the surveying instrument over the first horizontal and vertical rotation angles to an intermediate line of sight; measuring a distance to a point along the intermediate line of sight; and calculating second horizontal and vertical rotation angles based on the object point in the image and on the measured distance. In at least one embodiment, the method may be implemented using computer software, hardware, firmware or a combination thereof. There is also disclosed a surveying instrument in which at least one embodiment of the method is implemented.

    摘要翻译: 公开了一种将测量仪器瞄准所选目标的方法。 该方法在至少一个实施例中包括在测量仪器中使用照相机拍摄图像; 通过识别由测量仪器捕获的图像中的物体点来选择目标; 基于图像中识别的对象点计算第一水平和垂直旋转角度; 将测量仪器在第一水平和垂直旋转角度上旋转到中间视线; 测量到沿着中间视线的点的距离; 并且基于图像中的对象点和测量距离来计算第二水平和垂直旋转角度。 在至少一个实施例中,该方法可以使用计算机软件,硬件,固件或其组合来实现。 还公开了一种测量仪器,其中实现了该方法的至少一个实施例。

    Automated calibration of a surveying instrument
    9.
    发明授权
    Automated calibration of a surveying instrument 有权
    自动校准测量仪器

    公开(公告)号:US08978440B2

    公开(公告)日:2015-03-17

    申请号:US12735727

    申请日:2008-02-29

    IPC分类号: G01C25/00 G01C15/00

    CPC分类号: G01C25/00 G01C15/00

    摘要: The present invention provides a method for calibrating a geodetic instrument, an instrument and a computer program product thereof. In the method and geodetic instrument of the present invention, a value of at least one parameter affecting the measurements made by the instrument is detected and compared with a predetermined threshold. On the basis of the comparison between the detected value and the predetermined threshold, the instrument aims at a reference target and a calibration is performed using the reference target. The present invention is advantageous in that the accuracy and reliability of the measurements performed by the instrument are increased. Further, the present invention is advantageous in that the requirements on mechanical stability are reduced.

    摘要翻译: 本发明提供了一种用于校准大地测量仪器,仪器及其计算机程序产品的方法。 在本发明的方法和大地测量仪器中,检测影响由仪器进行的测量的至少一个参数的值并与预定阈值进行比较。 基于检测值和预定阈值之间的比较,仪器瞄准参考目标,并使用参考目标进行校准。 本发明的优点在于,由仪器执行的测量的精度和可靠性增加。 此外,本发明的优点在于减少了对机械稳定性的要求。

    DETERMINING COORDINATES OF A TARGET IN RELATION TO A SURVEY INSTRUMENT HAVING AT LEAST TWO CAMERAS
    10.
    发明申请
    DETERMINING COORDINATES OF A TARGET IN RELATION TO A SURVEY INSTRUMENT HAVING AT LEAST TWO CAMERAS 有权
    与至少两台摄像机相关的调查仪器确定目标的协调

    公开(公告)号:US20110043620A1

    公开(公告)日:2011-02-24

    申请号:US12735805

    申请日:2008-02-29

    IPC分类号: H04N7/18

    摘要: A method is disclosed for determining coordinates of a target in relation to a surveying instrument wherein a first image is captured using a first camera in a first camera position and orientation, a target is selected by identifying at least one object point in the first image, and first image coordinates of the object point in the first image are measured. In at least one embodiment, a second image is captured using a second camera in a second camera position and orientation, the object point identified in the first image is identified in the second image, and second image coordinates of the object point in the second image are measured. Target coordinates of the target in relation to the rotation center of the surveying instrument are then determined based on the first camera position and orientation, the first image coordinates, the second camera position and orientation, the second image coordinates, and first and second camera calibration data. Furthermore, a surveying instrument for performing the method is disclosed.

    摘要翻译: 公开了一种用于确定目标相对于测量仪器的坐标的方法,其中使用第一相机位置和方位中的第一相机捕获第一图像,通过识别第一图像中的至少一个对象点来选择目标, 并且测量第一图像中的对象点的第一图像坐标。 在至少一个实施例中,使用第二照相机位置和方向上的第二照相机拍摄第二图像,在第二图像中识别在第一图像中识别的对象点,并且在第二图像中识别对象点的第二图像坐标 被测量。 然后基于第一摄像机位置和姿态,第一图像坐标,第二摄像机位置和方向,第二图像坐标以及第一和第二摄像机校准来确定目标相对于测量仪器的旋转中心的目标坐标 数据。 此外,公开了一种用于执行该方法的测量仪器。