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Multiattribute rain analogy method based on sampling device

A sampling device, multi-attribute technology, applied in the field of virtual reality, to achieve the effect of high reliability

Inactive Publication Date: 2012-01-18
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of simulating real and credible rain in a virtual environment. Considering the influence of the wind field on the rain form, a set of devices capable of multi-attribute sampling of rain is proposed, and a device for sampling real rain is provided. The method of carrying out a large number of samples, establishing a database, improving the applicability of this method, and effectively solving the problem of the reliability of rain simulation

Method used

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  • Multiattribute rain analogy method based on sampling device
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  • Multiattribute rain analogy method based on sampling device

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Embodiment Construction

[0029] The multi-attribute rain simulation method based on the sampling device includes: comprehensively considering the shape, speed, size of raindrops, rainfall and the influence of different wind fields on rain, using a rain sampling device to sample a large number of real rain, and converting the obtained The data is organized as a database, and then according to the given parameters of the rain to be modeled, it is matched with the parameters in the database to calculate other parameters of the rain that best meet the requirements of the situation, and then establish a real and reliable model corresponding to different environments. Letter rain model.

[0030] The above multi-attribute rain sampling device includes: a high-speed camera for measuring the shape of rain; a particle dynamic analyzer for measuring the speed and size of raindrops; a rain gauge for measuring rainfall; an anemometer for measuring Wind speed and direction.

[0031] The multi-attribute sampling me...

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Abstract

The invention discloses a rain model method, which is characterized by comprehensively considering influence on rain by the form, the speed and the size of a raindrop, rainfall and different wind fields so as to build a real and credible rain model corresponding to different models. The rain model method belongs to the field of virtual reality. The form, the speed and the size of the raindrop, the rainfall as well as wind speed and wind direction in a scene can be obtained by sampling a great quantity of real rain by a sampling device which integrates a high-speed camera, a dynamic particle analyzer, an ombrometer and an anemoscope, and are all typed into a database. A given rain parameter required to model is matched with a parameter in a database to calculate other rain parameters which most conform to the requirement under the circumstance so as to model. According to the multiattribute rain analogy method based on a sampling device, the defect of low reliability in the traditional method is overcome, and rain with multiple physical attribute is simulated by real sampling data.

Description

technical field [0001] The invention relates to a method for sampling real rain and simulating the rain, and belongs to the technical field of virtual reality. Background technique [0002] Virtual reality technology is an advanced computer human-machine interface characterized by immersion, interactivity and conception. It comprehensively utilizes computer graphics, simulation technology, multimedia technology, artificial intelligence technology, computer network technology, parallel processing technology and multi-sensor technology to simulate the functions of human sensory organs such as vision, hearing and touch, so that people can immerse themselves in computer-generated In the virtual realm of , and can interact with it in real time through natural ways such as language and gestures. [0003] Since the development of virtual reality technology, the unresolved problem is the similarity between virtual reality and reality, that is, the credibility and usability of the v...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 周忠蒋康定吴威赵沁平
Owner BEIHANG UNIV
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