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When we drawing, we usually use the Protractor,but it's not that
convenient ,not only inefficient but also making mistake.Then
i came up with the idea about Angle recognizer, which can
measure the written angle by electronic scanning.
Guangdong university of technology
GuangZhou, China
Guangdong university of technology
GuangZhou, China
Tianliang Wu
Rongfeng Chen
Xueqiang Li
Xiaorong WU
