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Data augmentation method and device and object recognition method and system

A technology of object recognition and data, applied in the computer field, can solve the problems of high cost and long time required

Pending Publication Date: 2021-02-23
BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, collecting and labeling large amounts of diverse ground-truth data is expensive and time-consuming

Method used

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  • Data augmentation method and device and object recognition method and system
  • Data augmentation method and device and object recognition method and system
  • Data augmentation method and device and object recognition method and system

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Embodiment Construction

[0042] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0043] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0045] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of t...

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Abstract

The invention relates to a data augmentation method and a device and an object recognition method and a system. The data augmentation method comprises the steps of obtaining a point cloud annotation data set of an object collected by a laser radar, wherein the point cloud annotation data set is provided with a true value bounding box; selecting a three-dimensional detection box from the point cloud annotation data set; and executing at least one of specified operations on the point cloud data contained in the selected three-dimensional detection box to obtain augmented data. Wherein the specified operation comprises the following steps: rotating the contained point cloud data by a preset angle around the height direction of the three-dimensional detection frame; deleting a part of the contained point cloud data; adding random noise points to at least one part of the contained point cloud data; and copying the contained point cloud data from the point cloud frame to the space of other point cloud frames.

Description

technical field [0001] The present disclosure relates to the field of computer technology, and in particular to a data augmentation method and device, an object recognition method and system, and a computer-readable storage medium. Background technique [0002] In autonomous driving or robotics applications, lidar is widely used to detect and identify various obstacles in different scenarios. Obstacle detection and recognition methods based on lidar point clouds usually use the machine learning method of convolutional neural network (CNN) to predict the three-dimensional position, size, direction and category of obstacles. [0003] In related technologies, in order to achieve good performance in the supervised CNN-based obstacle detection and recognition method, the machine learning-based method requires a large number of diverse real-value data annotations, which requires the collection of a sufficient number of data in different scenarios and Make an annotation. However,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06K9/62G06N3/04
CPCG06V20/10G06V20/56G06V10/443G06V10/56G06N3/045G06F18/2415G06F18/214
Inventor 许新玉
Owner BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD