论文信息 - Banknote and coin speaker device for blind people

Banknote and coin speaker device for blind people

In this paper, we present a new technology device for help some blind people to perceive banknote and coin by voice. The system contains 2 sections: hardware and software. The hardware consists of 3 main parts: input part, processing part, and output part. The input part will get image from the camera (CMUcam1 [1], [2]). The processing part uses a microcontroller MCS-51 for classify banknote and coin. The output part uses voice recorder IC and speaker to show the voice of banknote and coin value. The software part performs to classifying type of banknote and coin. The banknote is classified from average red, green, and blue in RGB model. To classify the coin, difference of size is considered. We test the device with Thai banknote and Thai coin, and the result is correct about 80%.

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