Geometric error transfer model analysis method based on visual simulation system
A transfer model and visual simulation technology, applied in the field of performance analysis of the simulation system, can solve the problem of few results and achieve the effect of ensuring reliability
Pending Publication Date: 2022-06-24
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Such related methods have achieved less results in the field of environmental simulation
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[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0038] The technical scheme that the present invention adopts for realizing the above object is:
[0039] A geometric error transfer model analysis method for a visual simulation system, characterized in that: comprising the following steps:
[0040] Step 1: Based on the transformation process from the world coordinate system of urban buildings to the screen coordinate system, construct the geometric-physical transfer model of the visual simulation system, and verify the accuracy of the geometric-physical transfer model through experiments;
[0041] Step 2: Propose the influencing factors of geometric transmission error, and screen the main error factors through sensitivity analysis;
[0042] Step 3: Based on the geometric-physical transfer model of the visual simulation system, the error transfer function is constructed by deriving the geome...
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The invention relates to a geometric error transfer model analysis method of a simulation system, which comprises the following steps of: constructing a physical transfer process model based on a conversion process from a world coordinate system to a screen coordinate system, and verifying the accuracy of a geometric transfer model through experiments; geometric error influence factors are proposed, and main error factors are screened through sensitivity analysis; based on the geometric transfer model of the visual simulation system, deriving the geometric transfer model through an error transfer function construction rule to construct an error transfer function; designing an experiment, taking the physical model as an actual system, and calculating the deviation between an error transfer function result and an actual error result. According to the method, before an unknown environment is simulated by a simulation system, the accuracy is analyzed by utilizing a geometric error transfer function, the influence degree of error factors is analyzed more intuitively, and error optimization control of the system is facilitated.
Description
technical field [0001] The invention relates to the technical field of performance analysis of a simulation system, in particular to a method for analyzing a geometric error transfer model of a simulation system. Background technique [0002] Visual simulation technology has been applied in more and more fields by more and more countries. The visual simulation imaging technology has been developed rapidly. In order to test optoelectronic equipment, there are generally methods such as mathematical simulation, field experiment, traditional indoor experiment, and semi-physical simulation. Among them, semi-physical simulation combines actual objects with virtual digital scenes and introduces them into the test loop, which is more accurate than digital simulation. So in recent years, the hardware-in-the-loop simulation test of the system in the indoor environment has gradually become a hot research topic in various countries. However, the success of this kind of hardware-in-th...
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Login to View More IPC IPC(8): G06F30/13G06F30/20G06T17/10
CPCG06F30/13G06F30/20G06T17/10
Inventor 史泽林向伟花海洋刘云鹏杨坚华石轶
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI