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A height measurement method of irregular objects based on kinect

A technology for height measurement and objects, applied in the field of computer vision, can solve the problems of low precision, long measurement time, unsatisfactory speed and automation, etc., and achieve the effect of improving measurement accuracy and solving long measurement time

Active Publication Date: 2020-05-01
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These measurement methods generally have the disadvantages of long measurement time and low precision, which cannot meet the requirements of rapidity and automation

Method used

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  • A height measurement method of irregular objects based on kinect
  • A height measurement method of irregular objects based on kinect
  • A height measurement method of irregular objects based on kinect

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Experimental program
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Embodiment 1

[0039] (1a) Use Kinect to collect the foreground depth image and foreground color image containing the measured object, as well as the background depth image and background color image of the measurement platform that does not contain the measured object, and convert the foreground depth image through the conversion formula (I) after registration and the background depth image are respectively converted into the foreground color RGB image and the background color RGB image and save; formula (I) is as follows:

[0040] I depth =I G +256×I B (I)

[0041] Among them, I depth represents the depth value, I G , I B Represents the value of the G and B channels in the color image;

[0042] (1b) Cut the foreground ROI area and background ROI area from the foreground RGB image and background RGB image saved in step (1a) respectively according to the actual area of ​​the measuring platform, and set the values ​​outside the foreground ROI area and background ROI area is zero, each...

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Abstract

The invention discloses a Kinect-based non-regular object height measurement method. The method comprises the steps of (1) collecting an image; (2) searching for a target region; (3) preprocessing a background distance matrix; (4) obtaining an object height matrix and performing preprocessing; (5) inputting data; (6) layering the object height matrix and marking labels; and (7) calculating the height. According to the Kinect-based non-regular object height measurement method provided by the invention, through a non-contact measurement means, a measurement target is not damaged, and a natural state of a measured object is not disturbed; and the method can be applied in an automated condition.

Description

technical field [0001] The invention relates to a method for measuring the height of irregular objects based on Kinect, which belongs to the field of computer vision. Background technique [0002] Computer vision refers to the technology that uses computers to process collected images or videos, thereby replacing the visual function of the human eye, and realizing the perception, recognition and understanding of three-dimensional scenes in the objective world. Apply computer vision to precise measurement and positioning of spatial geometric dimensions, resulting in visual measurement technology. As one of today's high and new technologies, visual measurement has developed rapidly on the basis of continuous maturity and improvement of image processing and computer technology, and has been widely put into practical applications. Computer vision measurement technology uses image sensors as a means to detect the three-dimensional coordinates of space objects, and then detect th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/10G06T7/136G06T7/30G06T7/194G06T7/187G01B11/02
CPCG01B11/0608G06T2207/10004G06T2207/20104
Inventor 刘波庄兴昌李凌陈荔李奎周军廖华丽王婷婷谢小敏杨跟
Owner HOHAI UNIV CHANGZHOU