AUTHENTICATION METHOD AND AUTHENTICATION SYSTEM
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United States of America Patent
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Issued Date -
Jan 8, 2015
app pub date -
Jul 5, 2013
filing date -
Jul 5, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An authentication method and an authentication system are provided. The authentication method includes the following steps. Providing a test image in a first state. Obtaining the test image in a second state in response to a rotating operation. Calculating a difference value between each of image hash values of the test image in the second state and the test image in a third state. Determining that an authentication is successful if the difference value is less than a threshold value, wherein the third state is a state in which the test image is up-right.
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