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Improved non-contact optical measurement method of volume of irregular object with complex surface

A complex surface, optical measurement technology, applied in the direction of measurement devices, optical devices, instruments, etc., can solve the problems of expensive instruments, complicated operation, unsuitable for promotion, etc., and achieve the effect of convenient operation, high precision and fast measurement speed.

Active Publication Date: 2016-10-12
佛山市未来能力智能科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

The drainage method cannot detect objects that cannot be soaked in water such as medicine and chemical industry, and the measurement process is inconvenient; although the measurement results of ultrasonic volume measurement, CT tomographic three-dimensional image restoration and laser scanning volume measurement are accurate, the equipment is expensive and the operation is complicated. not suitable for promotion

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  • Improved non-contact optical measurement method of volume of irregular object with complex surface

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Embodiment 1

[0047] Such as Figures 1 to 12 As shown, the embodiment of the present invention provides an object volume measurement device for measuring complex surfaces to realize object volume measurement on complex surfaces, such as some protrusions or depressions on the surface. The specific principles are as follows:

[0048] In this embodiment, three SunTime FX30 color 1 / 4"CCD image sensors are used to collect images. The working voltage is 5V, the working current is 400mA, the effective pixel is 680H*480V, and the scanning method is progressive scanning. USB2.0 CMOS / CCD high-speed series products, using SONY high-end CCD photosensitive chip, has the characteristics of good color reproduction, high image quality, and high sensitivity. It provides high-precision raw data for object volume measurement.

[0049] Since we use the LabVIEW program to control the rotation platform 2 to let the camera 3 take an image every time it rotates 0.9 degrees, since 120 degrees is not an integer mu...

Embodiment 2

[0068] An embodiment of the present invention provides a volume measurement device for irregularly shaped objects to realize the volume measurement of irregularly shaped objects. The specific principles are as follows:

[0069] Before the measurement, we adjust the measuring device, adjust the three mechanical arms 5, make the angle between the three mechanical arms 5 be 120 degrees and align each camera 3 with the center of the rotating platform 2, adjust the level of the rotating platform 2, And make the camera 3 parallel to the rotating platform 2, turn on the auxiliary light source 6, so that the light of the auxiliary light source 6 evenly shines on the object under test. And complex surface objects are placed in the middle of the rotating platform 2 to facilitate volume measurement.

[0070] The stepping motor is controlled by the LabVIEW program to drive the rotating platform 2 to rotate, and three cameras 3 are simultaneously controlled to take pictures of the measured...

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Abstract

The invention relates to an improved non-contact optical measurement method of the volume of an irregular object with a complex surface. Based on the volume measurement technology of image processing, the method comprises the steps of camera calibration, image collection, image preprocessing of carrying out image preprocessing through filtering and removing interference information in the image, image binarization, image pixel and graphic height calculation, object bottom area calculation, and volume calculation. The problem that the contact with an object is needed in measuring the volume of the object at present is solved, the problem that the 3D reconstruction of an image and the generation of object 3D data points are needed in calculating volume through image processing and the measurement time is long are solved, and the problem of expensive price of testing equipment of CT fracture scanning and laser scanning is solved at the same time. The device is used to measure the volume of an object with a complex surface, and the method has the advantages of fast measuring speed, high precision and convenient operation.

Description

[0001] This patent application is a divisional application. The filing date of the original application is July 16, 2014. The patent application number is: 201410338608.5. The name of the invention is: a non-contact optical measurement method for volume of complex surfaces and irregular objects. technical field [0002] The invention relates to the field of object volume measurement, in particular to an improved non-contact optical measurement method for complex surfaces and irregular object volumes. Background technique [0003] With the rapid development of society and industry, volume measurement has become an indispensable part of many industrial productions. Only volume measurement devices with high precision, high speed and wide application range can meet the needs of modern industrial production. [0004] At present, domestic research methods on this issue mainly use drainage method, ultrasonic volume measurement, CT tomographic three-dimensional image restoration and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00
CPCG01B11/00
Inventor 林楚涛陈培宏曹辉钟土基梁佩莹罗梦婵
Owner 佛山市未来能力智能科技有限公司
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