According to tianyancha app, recently, the patent of "currency identification method, device and mobile terminal" applied by oppo Guangdong Mobile Communication Co., Ltd. was authorized The summary shows that the application includes: obtaining the image information corresponding to the currency to be tested through the camera of the mobile terminal, wherein the image information includes depth of field information and color information; Compare the image information of the currency to be tested and the standard currency to determine whether the currency to be tested is a real currency. This method can improve the accuracy of currency recognition.
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On April 26, the patent of "camera control method, device, electronic equipment and storage medium" of oppo Guangdong Mobile Communication Co., Ltd. was published.