Video-based three-dimensional virtual ship positioning and track simulation method

A three-dimensional virtual and trajectory simulation technology, which is applied to the details of 3D image data, image data processing, instruments, etc., can solve problems such as matching, reduce the difficulty of feature matching, and cannot meet real-time performance, and achieve the effect of virtual presentation.

Inactive Publication Date: 2015-04-01
HOHAI UNIV CHANGZHOU
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Problems solved by technology

There are many methods of 3D modeling technology. Image-based modeling technology is currently the most widely used method. Using the information of multiple images not only reduces the difficulty of feature matching, but also improves the accuracy of reconstruction. There are many traditional water transport 3D systems, but they cannot It matches the real water transportation scene information and cannot meet the real-time requirements, so real-time demonstration and real dynamic presentation cannot be achieved

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  • Video-based three-dimensional virtual ship positioning and track simulation method
  • Video-based three-dimensional virtual ship positioning and track simulation method

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 As shown, the present invention's video-based three-dimensional virtual ship positioning and trajectory simulation method thereof comprises the following steps:

[0032] Step 1: Identify the moving ship based on the video and extract the feature information of the ship;

[0033] Step 2: Obtain the position information and movement direction of the ship in the video at a fixed time interval, the fixed time interval is 3s-5s. ;

[0034] Step 3: Realize the accurate positioning of the ship in the three-dimensional virtual scene according to the obtained position information;

[0035] Step 4: Fit the obtained position and the current position point to generate the motion trajectory of the ship in real time.

[0036] The purpose of step 1 is to obtain the characteristic information of the moving ship from the video, mai...

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Abstract

The invention discloses a video-based three-dimensional virtual ship positioning and track simulation method which is characterized by comprising the following steps: 1, recognizing a ship on the basis of a video and extracting the characteristic information of the ship; 2, obtaining the position information and the motion direction of the ship in the video according to fixed time intervals; 3, realizing accurate positioning of a virtual ship in a three-dimensional virtual scene according to the obtained position information; and 4, fitting the obtained position with the current position point so as to generate the motion track of the ship in real time. According to the method, the real-time matching of ships in virtual scenes can be realized, the virtual dynamic representation of water transportation videos can be realized, and significance is brought to the management of ship navigation channels and the safe position prediction of ships.

Description

technical field [0001] The invention relates to a virtual reality technology in water transportation, in particular to a video-based three-dimensional virtual ship positioning and trajectory simulation method, and the invention belongs to the field of computer graphics and image processing. Background technique [0002] With the development of technologies such as virtual reality and computer vision, and the popularization of equipment such as digital cameras and video cameras, computer processing, recording and displaying three-dimensional objects have been widely used in various fields. There are many methods of 3D modeling technology. Image-based modeling technology is currently the most widely used method. Using the information of multiple images not only reduces the difficulty of feature matching, but also improves the accuracy of reconstruction. There are many traditional water transport 3D systems, but they cannot It matches the real water transportation scene informa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/20
CPCG06T19/003G06T2200/04
Inventor 何坤金李强张文英张莉军刘建新陈正鸣韩磊
Owner HOHAI UNIV CHANGZHOU
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