US Patent 7439989 Detecting doctored JPEG images
Patent 7439989 was granted and assigned to Microsoft on October, 2008 by the United States Patent and Trademark Office.
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Patent abstract
Systems and methods for detecting doctored JPEG images are described. In one aspect, a JPEG image is evaluated to determine if the JPEG image comprises double quantization effects of double quantized Discrete Cosine Transform coefficients. In response to results of these evaluation operations, the systems and methods determine whether the JPEG image has been doctored and identify any doctored portion.
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US Patent 07439989 Detecting doctored JPEG images US Patent 7439989 Detecting doctored JPEG images
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Patent Number
0743998900
Patent Number
743998900
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074399890
Date of Patent
October 21, 2008
0Patent Application Number
112762040
Date Filed
February 17, 2006
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074399890
Date of Patent
October 21, 2008
0Patent Application Number
112762040
Date Filed
February 17, 2006
0Official Website
Patent Primary Examiner
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US Patent 07439989 Detecting doctored JPEG images
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07439989
Date of patent
October 21, 2008
Patent application number
11276204
Date Filed
February 17, 2006
Patent primary examiner
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