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A point cloud filtering system and filtering method based on RGB-D information

An RGB image and point cloud technology, applied in image data processing, instruments, calculations, etc., can solve problems such as difficulty in achieving real-time performance, lack of filtering effect, low efficiency, etc., to avoid statistical calculation and avoid human subjectivity. factor, efficient effect

Active Publication Date: 2019-01-18
安徽中科智链信息科技有限公司
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

However, for non-isolated outliers, none of the existing filtering methods can obtain better filtering effects.
The current filtering methods are all directly applied to 3D data information, so the efficiency is low. For a large amount of point cloud data, it is difficult to achieve the real-time performance required by the engineering field.

Method used

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  • A point cloud filtering system and filtering method based on RGB-D information
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Embodiment 1

[0066] Such as figure 1 As shown, the present embodiment provides a point cloud filtering system based on RGB-D information, which includes:

[0067] The calibration module is used to calibrate the RGB camera and the depth camera on the depth camera, and obtain the internal reference matrix of the RGB camera, and the pose transformation matrix between the depth camera coordinate system and the RGB camera coordinate system;

[0068] The mapping module is used to map the RGB image to the depth image or map the depth image to the RGB image, and obtain the pixel points in the RGB image and the corresponding points in the depth image according to the internal reference matrix and the pose transformation matrix, and generate an XYZ point cloud image ;

[0069] Conversion module, for converting RGB image into HSV image, extracting V channel data to form V image;

[0070] The first processing module is used to process the V image and generate a binary image;

[0071] A patching mod...

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Abstract

The invention relates to the technical field of point cloud filtering, in particular to point cloud filtering system and filtering method based on RGB-D information. The system comprises a calibrationmodule, a mapping module, a conversion module, a first processing module, a repair module, a second processing module and a point cloud obtaining module. The invention can effectively obtain the filtered point cloud and has high efficiency.

Description

technical field [0001] The invention relates to the technical field of point cloud filtering, in particular to a point cloud filtering system and filtering method based on RGB-D information. Background technique [0002] With the development of depth camera technology, cameras capable of simultaneously capturing color images and depth images have been widely used in the acquisition system of 3D point cloud data. However, due to the complex structure and method of the depth image imaging principle itself, as well as the interference of the external environment, the 3D point cloud data obtained by the depth camera will contain a lot of noise. Therefore, in the 3D point cloud acquisition system, filtering processing is the most important An important part. [0003] The current filtering methods can produce certain filtering effects for different noise types. However, for non-isolated outliers, none of the existing filtering methods can obtain better filtering effects. The cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/20G06T5/00G06T7/11G06T7/136G06T7/80
CPCG06T5/20G06T7/11G06T7/136G06T7/85G06T2207/10028G06T2207/20024G06T2207/20192G06T5/70
Inventor 李晓风许金林谭海波赵赫
Owner 安徽中科智链信息科技有限公司
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