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Preprocessing and centralized processing combination method and device based on multi-view three-dimensional modeling

A technology of centralized processing and 3D modeling, applied in the field of 3D scanning, can solve the problems of waste of computing power of the processor, heavy computing burden on the centralized data processing end, and long data processing time, so as to reduce hardware requirements and costs, and speed up data processing. Speed, the effect of reducing the computational burden

Inactive Publication Date: 2017-01-18
XIAN SUANIER ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Three-dimensional scanning is a high-tech that integrates light, machine, and charge computer technology. It is mainly used to scan the spatial shape, structure and color of objects to obtain the spatial coordinates of the object surface. Its significance lies in the ability to convert the three-dimensional information of objects Converting to digital signals that can be directly processed by the computer provides a very convenient means for the digitization of physical objects. However, traditional 3D scanning equipment is mostly contact scanners or laser scanners. The contact measurement speed is slow and the mechanical structure is complicated, which cannot meet the requirements The needs of modern measurement, and laser scanners have radiation effects on the human body, which can easily cause discomfort to the human body, which greatly limits the use of laser scanners
[0003] In order to solve the shortcomings of contact scanners and laser scanners in human body scanning, a non-contact camera scanning device is currently used for human body scanning. By taking pictures of the human body in multiple directions and processing the images, the three-dimensional coordinates of the human body can be obtained. , so as to construct a three-dimensional human body model. Most of the existing technologies completely separate the front-end acquisition module from the centralized data processing end. After the image is acquired, the front-end acquisition module enters the standby state, and the computing power of its processor is wasted, resulting in The calculation load is heavy, and the data processing time is long

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  • Preprocessing and centralized processing combination method and device based on multi-view three-dimensional modeling
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  • Preprocessing and centralized processing combination method and device based on multi-view three-dimensional modeling

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Embodiment 1

[0050] see figure 1 , is proposed by the present invention based on multi-view Figure three Flowchart of the method combining dimensional modeling preprocessing and centralized processing.

[0051] like figure 1 As shown, a multi-view based Figure three A method combining dimensional modeling preprocessing and centralized processing, including the following steps:

[0052] Step 101, performing image extraction on the scanned object and preprocessing the extracted image;

[0053] Step 102, transmitting the preprocessed image information to the background processing system for centralized processing.

[0054] In the embodiment of the present invention, the scanned object is extracted by the front-end acquisition module, and the extracted image is preprocessed. Since the front-end acquisition module has a large number and has certain computing power, before the image data is sent to the data centralized processing end, The image can be preprocessed by each image collector,...

Embodiment 2

[0072] see Figure 4 , is a flow chart of the method for preprocessing the extracted image described in Embodiment 2 of the present invention.

[0073] like Figure 4 As shown, the extracted image is preprocessed, including:

[0074] Step 2011, performing background removal on the extracted image;

[0075] Step 2012, performing two-dimensional coordinate transformation on the image with the background removed, to obtain two-dimensional image point coordinate information;

[0076] Step 2013, calculate the three-dimensional point coordinate information of the image according to the position of the front-end acquisition module.

[0077] In the embodiment of the present invention, the front-end collection module performs background removal on the collected image, and converts the feature point information of the image into two-dimensional coordinate information, that is, the two-dimensional coordinate information of the collected image feature point in the image, and according ...

Embodiment 3

[0086] In Embodiment 1 and Embodiment 2, the front-end acquisition module is a clustered camera group arranged on the scanning device in all directions.

[0087] In the embodiment of the present invention, the front-end acquisition module adopts a clustered camera group, and is arranged on the name scanning device in all directions, which is convenient for all-round image acquisition of the scanned object without dead ends, and the scanning range is comprehensive, which can improve the accuracy of modeling .

[0088] Further, the extracted image is an image captured by the front-end acquisition module at the same time.

[0089] In the embodiment of the present invention, the shooting time of the camera group is set, that is, all cameras take pictures at the same time, which can ensure that all images accurately record the three-dimensional information of the object to be scanned, and prevent the object to be scanned from moving during the photographing process. This can cause...

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Abstract

The invention discloses a preprocessing and centralized processing combination method based on multi-view three-dimensional modeling. The preprocessing and centralized processing combination method comprises the steps of: carrying out image extraction on a scanning object and preprocessing an extracted image; and transmitting the preprocessed image information to a background processing system for centralized processing. The invention further discloses a preprocessing and centralized processing combination device based on multi-view three-dimensional modeling. The preprocessing and centralized processing combination device comprises a front-end acquisition module and a background centralized processing module, wherein the front-end acquisition module is used for carrying out omni-directional image extraction and preprocessing on the scanning object; and the background centralized processing module is used for receiving preprocessed information sent by the front-end acquisition module, and performing secondary processing on the preprocessed information to construct a three-dimensional model of the scanning object. According to the method and the device provided by the invention, the image can be preprocessed by the front-end acquisition module before the image data is sent to a data centralized processing end, thereby reducing the computing burden of the data centralized processing end, further accelerating the data processing speed and reducing the hardware requirement and cost of the data centralized processing end.

Description

technical field [0001] The invention relates to the technical field of three-dimensional scanning, in particular to a multi-view Figure three A method and device for combining dimensional modeling preprocessing and centralized processing. Background technique [0002] Three-dimensional scanning is a high-tech that integrates light, machine, and charge computer technology. It is mainly used to scan the spatial shape, structure and color of objects to obtain the spatial coordinates of the object's surface. Its significance lies in the ability to convert the three-dimensional information of objects Converting to digital signals that can be directly processed by the computer provides a very convenient means for the digitization of physical objects. However, traditional 3D scanning equipment is mostly contact scanners or laser scanners. The contact measurement speed is slow and the mechanical structure is complex, which cannot meet the requirements The needs of modern measuremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
Inventor 杨少毅褚智威
Owner XIAN SUANIER ELECTRONICS TECH