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Object size measurement method and related equipment

A measurement method and technology of objects, applied in measurement devices, instruments, optical devices, etc., can solve the problem of inaccurate measurement results, and achieve the effect of high accuracy

Active Publication Date: 2020-07-17
CAINIAO SMART LOGISTICS HLDG LTD
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Problems solved by technology

[0005] In view of this, the application provides a method for measuring object size to solve the problem that the measurement results of existing object size measurement methods are not accurate enough

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  • Object size measurement method and related equipment
  • Object size measurement method and related equipment
  • Object size measurement method and related equipment

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0041] In some cases, it is necessary to measure the dimensions of an object. One existing method of measuring the size of an object is to use a depth camera for measurement. The depth camera adopts three-dimensional vision technology, which can obtain the three-dimensional shape of the object surface through visual imaging method. Among them, the three-dimensional vision technology may include but not limited to binocular or multi-eye stereo vision technology, structured light ste...

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Abstract

The present invention provides an object dimension measurement method. The method is based on an object measurement device comprising a back plate, a camera in the object measurement device can collect depth images of the back plate and a measured object, the method fits a back plate plane according to the point cloud data of the depth images, the point cloud data of the measured object is determined from the point cloud data of the depth images, and a distance between the point cloud data and the back plate plane is calculated to determine the dimension of the measured object in the relativedirection relative to the back plate plane. Compared to a current measurement method, in the method, the dimension of the measured object is measured by taking the back plate plane as a reference, theerrors of the dimension of the measured object are mainly determined by the shooting errors of the camera to improve the accuracy of the dimension measurement result. The present invention further provides an object dimension measurement related device to ensure the application and the implementation of the method in reality.

Description

technical field [0001] The present application relates to the technical field of object measurement, and more particularly, relates to object size measurement methods and related equipment. Background technique [0002] In some cases, it is necessary to measure the size of the object. For example, in the logistics industry, the package needs to be packed in a courier box. In order to determine the size of the courier box to use, it is necessary to measure the size of the package to be packaged. [0003] One method of object size measurement is to use a depth camera for measurement. The depth camera adopts three-dimensional vision technology, which can obtain the three-dimensional shape of the object surface through visual imaging method. Existing object size measuring devices such as figure 1 As shown, the depth camera is fixed on the top of the vertical support rod, and the bottom of the support rod is provided with a measurement platform. The angle of view of the depth c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/02
CPCG01B11/00G01B11/022
Inventor 伍科宇
Owner CAINIAO SMART LOGISTICS HLDG LTD
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