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The fast method of Point Positioning in multi-vision system

Using multi-vision system to implement the Point Positioning is more robust and accurate than using bi-vision system. However, multi-vision system is not feasible for real time Point Positioning; because multi-vision system mainly use optimization method. This paper proposes a fast Point Position method to address this problem. This method regard the average of all feet, which are determined by Back-Projection Line, as initial value; and then obtain the better results by setting the weight of foot. The method can be used in real time Point Positioning due to it has closed-form solution. The simulation shows its accuracy and precision are better than optimization methods in some cases.