A 3D visualization method and system based on point cloud and image data

A technology of image data and point cloud data, applied in image data processing, 3D image processing, image analysis, etc., can solve problems such as limited accessibility, affecting the expansion of laser point cloud technology, and poor point cloud realism. Achieving the effect of improving accessibility and usability, improving point cloud resolution and pixel utilization

Active Publication Date: 2018-03-09
HUAZHONG UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0003] However, there is still no complete 3D visualization solution for point cloud from data collection and fusion to final rendering display, which seriously affects the expansion of laser point cloud technology.
Therefore, there is an urgent need for a complete and feasible 3D visualization solution that integrates laser point cloud and image data to improve the accessibility and usability of point cloud data for ordinary users, and solve the technical problems of poor realism and limited accessibility of point cloud in the past.

Method used

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  • A 3D visualization method and system based on point cloud and image data
  • A 3D visualization method and system based on point cloud and image data
  • A 3D visualization method and system based on point cloud and image data

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Embodiment 1

[0073] Such as figure 2 As shown, the hardware structure used in Embodiment 1 of the present invention includes: a local workstation, a wireless router, a local data collection device, an application server, a storage server, a database server, and a terminal device.

[0074] Such as image 3 Shown is the self-made three-dimensional laser scanner used in the present invention, which is composed of a one-dimensional laser ranging sensor, a horizontal rotating platform, a vertical rotating shaft drive, a lens system and a laser exit window.

[0075] The 3D laser scanner and camera are connected to a wireless router through a wired medium, and the local workstation is connected to the router wirelessly. The laser point cloud data and image data are transmitted to the local workstation through a wireless network. Due to the large amount of data generated during the implementation process, Therefore, the wireless router selects a dual-band wireless router with a speed of up to Gigabit, ...

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PUM

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Abstract

The invention discloses a three-dimensional visualization method based on point cloud and image data and a system thereof. The method comprises the following steps of collecting image data and point cloud data of a target scene; carrying out upsampling on the point cloud data, projecting the point cloud data after the upsampling to the image data so as to carry out fusion, coloring the fused point cloud data and acquiring the colorful point cloud data; and using the colorful point cloud data to carry out three-dimensional rendering and acquiring a three-dimensional visualization model of the target scene. In the invention, point-cloud three-dimensional visualization from data acquisition and fusion to final rendering display is realized, which is good for development of a laser point cloud technology; and accessibility and usability of the point cloud data to a common user are increased.

Description

Technical field [0001] The invention belongs to the field of point cloud three-dimensional visualization, and more specifically, relates to a three-dimensional visualization method and system based on point cloud and image data. Background technique [0002] Currently, many types of 3D laser scanners can only collect the 3D coordinate point cloud data of the target scene due to their own hardware and working methods. These point cloud data do not contain the true color and texture information of the target scene, so they can only Color or false color display. The maturity and success of high-resolution camera photogrammetry technology has made up for the inherent shortcomings of 3D laser scanners. The image data of the target scene collected by the camera contains rich color and texture information and high pixel density, which coincides with the 3D laser point cloud data. Formed complementary advantages. [0003] However, there has not yet been a complete set of point cloud 3D v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T15/55G06T7/50
CPCG06T7/50G06T15/55G06T2207/10028
Inventor 肖力张星岳东孙志刚王卓
Owner HUAZHONG UNIV OF SCI & TECH
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