公开(公告)号：US4081690A

公开(公告)日：1978-03-28

申请号：US740453

申请日：1976-11-17

申请人： Klaus Grubner ,  Werner Kunze ,  Werner Marckwardt

发明人： Klaus Grubner ,  Werner Kunze ,  Werner Marckwardt

IPC分类号： G01C11/12

CPC分类号： G01C11/12

摘要： An automatic stereo plotter comprises a correlator and a follow-up unit, which is preferably employed to follow-up a measuring mark in z-direction relative to a stereo model to be evaluated. In order to improve the efficiency of the stereo plotter additional means are provided which increase the amplification factor between the parallax error signals at the output of the image correlator and the follow-up signals. Thus variations in the video signals derived from the measuring photographs are compensated for. Such means are, for example, an adjustable amplifier, which can be set to a plurality of stable amplification factors, and an analog multiplier which, due to a corresponding control voltage, permits a continuous variation of the amplification.

摘要翻译： 自动立体绘图仪包括相关器和跟踪单元，其优选地用于跟踪相对于待评估的立体模型的z方向上的测量标记。 为了提高立体绘图仪的效率，提供了增加图像相关器的输出端的视差误差信号与后续信号之间的放大系数的附加装置。 因此，补偿从测量照片得到的视频信号的变化。 这样的装置是例如可以设置为多个稳定的放大因子的可调节放大器，以及由于相应的控制电压允许放大的连续变化的模拟乘法器。

公开(公告)号：US4193117A

公开(公告)日：1980-03-11

申请号：US908363

申请日：1978-05-22

申请人： Werner Marckwardt

发明人： Werner Marckwardt

IPC分类号： G01C11/06 ,  G06F17/15 ,  G06F15/34 ,  G06G7/19

CPC分类号： G01C11/06 ,  G06F17/15

摘要： The invention concerns an electronic correlator for the evaluation of stereo-couples of photographs. Said electronic correlator comprises a normal correlator into which non-delayed signals are fed which in turn are derived from homologous points of each of the photographs of said stereo-couples. It further comprises an auto-correlator into which the image signals are fed non-delayed from the one photograph and delayed from the other photograph. A subtraction unit is connected to the normal correlator and to the auto-correlator. Furthermore two orthogonal correlators are provided into which the delayed and non-delayed image signals derived from the two photographs are fed crosswise delayed and non-delayed. The two orthogonal correlators are followed by a subtraction unit. By virtue of such an arrangement the trend inherent in the image signal functions to be correlated are taken into consideration and thus the quality of the image correlation is increased.

摘要翻译： 本发明涉及一种用于评估照相立体对的电子相关器。 所述电子相关器包括正向相关器，其中馈送非延迟信号，其依次源自所述立体声对的每个照片的同源点。 它还包括一个自动相关器，其中图像信号从一张照片不延迟地被馈送到该自动相关器中，并从另一张照片延迟。 减法单元连接到正常相关器和自相关器。 此外，提供了两个正交相关器，其中从两个照片得到的延迟和非延迟图像信号被进行交叉延迟和非延迟。 两个正交相关器之后是减法单元。 通过这样的布置，考虑图像信号功能中固有的趋势相关的趋势，从而增加图像相关性的质量。