Introduction - If you have any usage issues, please Google them yourself
reality.A method to recognize mark area by connectivity area abstraction of the binary image which includes marks,is presented.
According to different mark pattern recognition.a method based on the number of connectivity ar哪of the paRem and ameth—
od based on template match ar}e presented.The result pmves the methods presented call recognize the marks accurately.which gets
prepared for the real time synthesis of the virtual and the real.