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Parcel volume measuring method and system, storage medium and mobile terminal

A volume measurement and wrapping technology, applied in the field of computer vision, can solve the problems of measurement error, inability to distinguish the upper surface and the side, etc., to reduce segmentation interference, improve the accuracy and reliability of dimensional measurement, and high measurement efficiency. Effect

Active Publication Date: 2018-12-18
NANJING AVATARMIND ROBOT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use the depth map to perform histogram statistics on the depth value, and use the threshold separation method to separate the upper surface of the object to be detected from the side. However, since the package is not a plane, when the depth camera shooting angle is located on the package measurement surface, the upper surface The distance from the measurement surface to the depth camera is similar or even equal, so the method of using histogram statistics cannot distinguish the upper surface from the side surface very well, resulting in a large error in the measurement value of the object volume

Method used

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  • Parcel volume measuring method and system, storage medium and mobile terminal
  • Parcel volume measuring method and system, storage medium and mobile terminal
  • Parcel volume measuring method and system, storage medium and mobile terminal

Examples

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no. 1 example

[0041] According to the first embodiment provided by the present invention, such as figure 1 Shown, a kind of parcel volume measuring method comprises steps:

[0042] S100. Obtain a target point cloud, the target point cloud at least includes a point cloud of a support surface and a point cloud of a top surface of the package to be tested; the support surface is the surface on which the package to be tested is placed; the point cloud of the package to be tested is The top surface is the surface of the package to be tested away from the support surface.

[0043] S200. According to the target point cloud, obtain the plane equation of the support surface, the plane equation of the top surface of the package to be tested and the point cloud of the top surface of the package to be tested by means of plane fitting, and according to the support The height of the package to be tested is obtained by calculating the plane equation of the surface and the plane equation of the top surfac...

no. 6 example

[0128] According to the sixth embodiment provided by the present invention, a package volume measurement method, on the basis of the first embodiment, after the step of acquiring the target point cloud, and before the step of plane fitting the target point cloud, further includes the steps of:

[0129] S110. Perform thinning processing on point clouds in the target point cloud, and filter redundant point clouds in the target point cloud.

[0130] Specifically, this embodiment is an optimized embodiment of the above-mentioned first to fifth embodiments, in order to reduce the time for calculating and obtaining the size of the package to be measured, and because when processing the target point cloud, an excessively high resolution is not required , so before segmenting the target point cloud, the point cloud in the target point cloud can be sparsely processed, so that the processing amount of point cloud data can be appropriately reduced, and the number of point clouds can be av...

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Abstract

The invention discloses a parcel volume measuring method and system, a storage medium and a mobile terminal, and relates to the field of computer vision. Target point cloud is obtained, and the targetpoint cloud at least comprises the point cloud of a support surface and the point cloud of the top surface of a to-be-measured parcel; a plane equation of the support surface and the plane equation of the top surface of the to-be-measured parcel and the point cloud of the top surface of the to-be-measured parcel are obtained in a plane fitting mode, and the height of the to-be-measured parcel iscalculated according to the plane equation of the support surface and the plane equation of the top surface of the to-be-measured parcel; and the point cloud of the top surface of the to-be-measured parcel is projected on a plane corresponding to the plane equation of the to-be-measured parcel top surface to obtain a boundary point cloud; four frame angle points of the top surface frame of the to-be-measured parcel are obtained; according to the coordinates of the four frame angle points, the length and the width of the to-be-measured parcel are obtained through calculation, and the height ofthe to-be-measured parcel is combined, the volume of the to-be-measured parcel is obtained through calculation. The purpose of reducing the measurement error and simplifying the measurement requirement is achieved.

Description

technical field [0001] The invention relates to the field of computer vision, in particular to a package volume measurement method, system, storage medium and mobile terminal. Background technique [0002] With the continuous advancement of global integration and the rapid development of computer technology. Online shopping based on the Internet industry has brought great convenience to everyone. With the rapid expansion of online shopping, the throughput of logistics packages has shown geometric growth. For logistics companies, the weight is only a small part of the transportation cost of the package. If the package volume can be reasonably arranged, it can bring great help to logistics companies. [0003] At present, most logistics companies still rely on manual measurement for the measurement of package volume. For manual measurement, usually the measurement result is not ideal, the measurement speed is slow, and the measurement accuracy is not enough. Even if some e...

Claims

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Application Information

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IPC IPC(8): G01B11/00
CPCG01B11/00
Inventor 乔倚松
Owner NANJING AVATARMIND ROBOT TECH CO LTD
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