关键词: FPGA, 增强现实, 人工标识, 二值化处理, 模板匹配

Abstract:

In a mark points based augmented reality system,one need to register a computer-generated virtual object to the corresponding mark point in order to achieve the effect of augmented reality,which makes mark recognition the key process of the system.An artificial mark recognition system with FPGA as the core is designed in the paper.Video capture is implemented by adopting TRDB-D5M camera and DE2-115 FPGA development board;then a binary processing,an algorithm based on the mark abstraction of connectivity area and a method based on template match are adopted on the color image with marks,which realizes artificial mark recognition.The experiments results and analysis show the method can recognize the marks accurately and has important practical significance for the further development of the augmented reality system.

Key words: FPGA;augmented reality;artificial mark;binary processing;template match