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- W2036709900 abstract "In the case that a real operator drives a virtual human in real-time using the motion capture method and performs complex products assembling and disassembling simulation, a very high driven accuracy is needed to meet the quality requirements of interactivity and simulation results. In order to improve the driven accuracy in virtual reality environment, a method is put forward which analyzes the influence factors of virtual human real-time driven accuracy and optimize the factors. A systematical analysis of factors affecting the accuracy is given. The factors can be sorted into hardware factors and software factors. We find out that the software factors are the main ones affecting the accuracy, and it is very hard to analyse their influence separately. Therefore, we take the virtual human kinematic system as a fuzzy system and improve the real-time driven accuracy using an optimization method. Firstly, a real-time driven model is built on dynamic constraints and body joint rotation information and supports personalized human driven. Secondly, a function is established to describe the driven error during interactive operations in the virtual environment. Then, based on the principle of minimum cumulative error, we establish an optimization model with a specified optimization zone and constraints set according to the standard Chinese adult dimensions. Next, the model is solved using genetic algorithm to get the best virtual human segment dimensions matching the real operator. Lastly, the method is verified with an example of auto engine virtual assembly. The result shows that the method can improve the driven accuracy effectively." @default.
- W2036709900 created "2016-06-24" @default.
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- W2036709900 date "2013-08-04" @default.
- W2036709900 modified "2023-10-14" @default.
- W2036709900 title "Analysis of Influence Factors of Virtual Human Real-Time Driven Accuracy and its Optimization in Virtual Reality Environment" @default.
- W2036709900 doi "https://doi.org/10.1115/detc2013-12917" @default.
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