Title:
INFORMATION DETECTION METHOD AND APPARATUS BASED ON PACKET ENERGY DIFFERENCE VALUE, AND RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/095176
Kind Code:
A1
Abstract:
Disclosed is an information detection method based on a packet energy difference value. The method comprises: receiving first carrier information; processing the first carrier information to obtain second carrier information, original carrier information and third carrier information; determining an identical position and different positions of the second carrier information and the original carrier information; extracting a first numerical value at the identical position of the first carrier information and a second numerical value at the identical position of the third carrier information, and determining a first maximum value of an absolute value of a difference value of the first numerical value and the second numerical value; extracting a third numerical value at the different positions of the first carrier information and a fourth numerical value at the different positions of the third carrier information, and determining a second maximum value of an absolute value of a difference value of the third numerical value and the fourth numerical value; determining whether a difference value of the second maximum value and the first maximum value is greater than a pre-set threshold; and if so, determining that concealed information exists in the first carrier information. By means of the present invention, concealed information can be detected accurately.
Inventors:
XIE NING (CN)
TAN JIE (CN)
TAN JIE (CN)
Application Number:
PCT/CN2017/111217
Publication Date:
May 23, 2019
Filing Date:
November 15, 2017
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
H04N19/467; G06T1/00
Foreign References:
| CN104284182A | 2015-01-14 | |||
| CN105227962A | 2016-01-06 | |||
| CN107222750A | 2017-09-29 | |||
| US20170061565A1 | 2017-03-02 |
Attorney, Agent or Firm:
SHENZHEN SERMON PATENT FIRM (CN)
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