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Survey data processing device, survey data processing method, and program therefor

一种处理装置、测量数据的技术，应用在图像数据处理、涉及图形用户界面的详细信息、图像分析等方向，能够解决非效率、错误检测、繁杂等问题，达到提高效率的效果

Active Publication Date: 2016-08-03
KK TOPCON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the automatic detection of objects in the image is prone to erroneous detection. In practice, the operator manually zooms in and out of each still image one by one to specify the position of the mark in the image by visual confirmation. Homework is the truth
This operation must be performed on dozens to hundreds of still images, which is complicated and inefficient

Method used

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  • Survey data processing device, survey data processing method, and program therefor
  • Survey data processing device, survey data processing method, and program therefor
  • Survey data processing device, survey data processing method, and program therefor

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Experimental program
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no. 1 approach

[0037] (summary)

[0038] Hereinafter, the principle of processing performed in the embodiment will be briefly described. exist figure 1 The principle of the measurement is shown conceptually in . In this example, an unmanned aircraft (UAV (Unmanned Air Vehicle)) 10 capable of flying autonomously is mounted with a camera capable of taking pictures. The UAV 10 is equipped with a GNSS device (a position specifying device using navigation satellites) and an IMU (inertial navigation unit) and is capable of autonomous flight, but its accuracy is insufficient for creating a three-dimensional model described later. Of course, although the cost increases, a UAV equipped with a high-precision GNSS device and an IMU can also be used. In addition, in the creation of the three-dimensional model in this embodiment, the GNSS device and the IMU of the UAV are not essential. Furthermore, it is also possible to use aircraft that are not UAVs but manned.

[0039] UAV10 continuously takes p...

no. 2 approach

[0150] In the present invention, three-dimensional point cloud position data (or a three-dimensional model based on the three-dimensional point cloud position data) obtained by a total station with a camera and a laser scanner can also be used together. In this case, the first three-dimensional model is created by the method described in the first embodiment without using reference points. The three-dimensional model (No. 1) is a relative model in which the relative positional relationship between feature points is specified, since the designation of the reference point as in the first embodiment is not performed.

[0151] On the other hand, in addition to a laser distance measuring device, a total station equipped with a camera (for example, refer to Japanese Patent Application Laid-Open No. 2014-173990 ) and a laser scanner are used to point the area overlapping with the three-dimensional model (Part 1). The group position data is obtained, and a three-dimensional model base...

no. 3 approach

[0155] In the first embodiment, it is also possible to automatically detect the reference point specified initially by image recognition. In this case, a plurality of positions (four or more positions) commonly appearing in the first two still images selected are thoroughly clarified to set a reference target for easy image recognition. Regarding this reference target, in order to facilitate image recognition, the installation location is determined while paying attention to the state of the ground surface serving as the background. In addition, objects other than the reference object are arranged in the same manner as in the case of the first embodiment.

[0156]In the case of this example, detection of a target is performed by software processing from the still image selected in step S102. Thereafter, the same processing as in the first embodiment is performed. In the present embodiment, it is necessary to set the first detected object as a special object that is easy to a...

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Abstract

The invention relates to a survey data processing device, a survey data processing method, and a program therefor. The survey data processing device includes a data receiving unit, an operation information receiving unit, an exterior orientation parameter calculating unit that calculates exterior orientation parameters of a camera shooting a first static image and a second static image based on a plurality of reference points, a coordinate integrating unit for obtaining an integrated coordinate system for describing both the locations of an unselected reference point and the camera, a back-projected image generating unit for generating a back-projected image by back-projecting the unselected reference point in the integrated coordinate system, and a target position estimating unit that estimates a position of the unselected reference point in a static image based on the position of the location of the unselected reference point in the back-projected image .

Description

technical field [0001] The invention relates to measurement technology. Background technique [0002] For example, there is known a three-dimensional model (three-dimensional terrain data modeled as electronic data) of a target terrain obtained by photographing a civil engineering site or the like from above and based on the image data obtained at that time (for example, refer to Japanese Patent No. Publication No. 2013-96745). In this technique, work is required to provide the obtained three-dimensional model with a real size. In this work, it is necessary to find a reference point appearing in each still image among several tens to several hundreds of still images and to associate them between the still images. [0003] A technique of automatically detecting the above-mentioned fiducial points by software processing has also been studied. In this technique, it is assumed that a target is placed on a reference point to facilitate detection of a reference point by softwar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/001G06T2207/10032G06T2207/30184G06T2200/24G06T2207/10016G06T2207/30181G06T7/33G06T7/74G06T7/55G06T2207/30244G06T2207/20101
Inventor 佐佐木刚穴井哲治大谷仁志高地伸夫
Owner KK TOPCON
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