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Method, storage medium and measurement system for visually representing scanned data

A technology for scanning data and measurement values, applied in the field of measurement systems with scanning functions, to achieve the effect of simple distribution or calculation

Active Publication Date: 2020-08-18
LEICA GEOSYSTEMS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires additional computing power, with the result that, especially given the high power of the scan data, current methods utilizing state-of-the-art methods cannot perform this geometrically correct representation in time after measurement processing

Method used

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  • Method, storage medium and measurement system for visually representing scanned data
  • Method, storage medium and measurement system for visually representing scanned data
  • Method, storage medium and measurement system for visually representing scanned data

Examples

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Embodiment Construction

[0043] figure 1 A stationary measuring device 90 is shown having a scanning function (for example in the form of a laser scanner) for recording a target surface 100 . The device is here configured to emit measurement radiation 91 according to a specified measurement direction 1 , to receive measurement radiation 91 reflected by said surface 100 , and to evaluate it, for example using time-of-flight or phase difference methods. In order to scan the target surface 100, the measuring radiation 91 is continuously translated and in each case at least one measurement value (including in each case the distance from the corresponding target point P) is recorded continuously at short time intervals, As a result, a plurality of measurement directions 1 are obtained and a plurality of points 98 of the target surface 100 are measured, thereby obtaining a plurality of individual measurement data items which are interconnected and form scan data. Measuring direction 1 for example by elevat...

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Abstract

Method, storage medium and measurement system for visually representing scan data consisting of a plurality of individual measurement data. The individual measurement data have in each case at least one measurement value associated with a respective measurement direction, wherein the measurement directions differ from one another such that a predetermined scanning area with a predetermined scanning resolution is covered. The representation of the scan data is realized by means of an image map with a plurality of mapping points depending on a predetermined display resolution and by assigning measurement values ​​to the mapping points, wherein the measurement values ​​are based on the corresponding measurement directions associated with the measurement values to implement the allocation immediately.

Description

technical field [0001] The invention relates to a method for visually representing scan data, and a measurement system with scan functionality. Background technique [0002] 3D scanning is a very efficient technique for generating millions of individual measurement data points (especially 3D coordinates) within minutes or seconds. Typical measurement tasks are the documentation of objects or surfaces of objects such as industrial installations, building facades or historic buildings, as well as accident and crime scenes. Measuring devices with scanning functionality are eg total stations and laser scanners (such as Leica P20 or Leica Multi Station 50) for measuring or creating 3D coordinates of surfaces. For this purpose, they must be able to direct the measuring beam (usually a laser beam) of the distance measuring device onto the surface and, in this way, acquire the directions of the corresponding measuring points consecutively for different measuring directions at a spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00
CPCG01B11/002G01C15/002G06T15/00H04N23/62H04N23/66H04N23/698G01C11/00H04N5/272
Inventor C·赫布斯特
Owner LEICA GEOSYSTEMS AG