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| || | ||  \ \\/ //  |  _ \\    / _ \\   |__  //  
| '--' ||   \ ` //   | |_| ||  / //\ \\    / //   
| .--. ||    | ||    | .  //  |  ___  ||  / //__  
|_|| |_||    |_||    |_|\_\\  |_||  |_|| /_____|| 
`-`  `-`     `-`'    `-` --`  `-`   `-`  `-----`

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發送短信 : Optical Encryption and Authentication Based on Phase Retrieval and Sparsity Constraints