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Image capturing system and method for automatically watermarking recorded parameters for providing digital image verification

Assignee: International Business Machines Corp
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Filing: 1998-05-18
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Granted: —
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Expires: 2018-05-18
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Abstract

Abstract An image capturing system and method for automatically watermarking a plurality of recorded camera and image parameters such as the location (latitude, longitude and altitude), orientation of the principal axis of the camera, whether the camera is in landscape mode or portrait mode, camera velocity, photographer information, time and date, zoom factor, shutter speed, flash on/off, autofocus distance, lightmeter reading, focal length and aperture into every captured image. This watermarked data can be subsequently extracted and compared with the originally recorded data so as to verify the authenticity of a corresponding image. Since the critical data is invisibly watermarked into the image, it is difficult to modify the image without affecting the watermarked data.

Inventors

  • 👤 Chandrasekhar Narayanaswami
  • 👤 Edward Scott Kirkpatrick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 19:23
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32128; G; G06; G06T; G06T7/00; G06T1/00; G06T1/0021; H04N23/00; H04N23/60; H04N23/63; H04N23/631; H04N23/633; H04N23/66; H04N23/661; H04N5/00; H04N5/76; H04N5/765; H04N5/77; H04N5/772; H04N5/91; H04N5/913; G03; G03B; G03B2217/00; G03B2217/18; G03B2217/24; H04N2101/00; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3204; H04N2201/3205; H04N2201/3212; H04N2201/3214; H04N2201/3215; H04N2201/3225; H04N2201/3233; H04N2201/3235; H04N2201/3252; H04N2201/3253; H04N2201/3269; H04N2201/327; H04N2201/3274; H04N2201/3277; H04N5/92; H04N5/9201; H04N5/926; H04N5/9261; H04N5/9264

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 222 words
1 . An image capturing system for automatically recording and watermarking a plurality of parameters in a captured image, comprising: a central processing unit for controlling a plurality of functions and operations of said system; image capture means, operatively connected to said central processing unit, for generating a digital image of an observed image frame and for generating a plurality of image data associated with said generation of said image; wireless communication means, operatively connected to said central processing unit, for receiving data from objects in said observed image frame when said image is generated; geographic location determining means, operatively connected to said central processing unit, for determining geographic coordinates of said system when said digital image is generated; means for determining a time and a date when said image is generated; information receiving means, operatively coupled to said central processing unit, for receiving data associated with a user of said system when said digital image is generated; image processing means for receiving said plurality of parameters and recording said plurality of parameters with said generated digital image, said plurality of parameters including said plurality of image data, said object data, said time data, said date data, said location data, and said user data; and means, operatively coupled to said image processing means, for watermarking said plurality of parameters into said image.
Claim 2
Dependent Claim 222 words
1 . An image capturing system for automatically recording and watermarking a plurality of parameters in a captured image, comprising: a central processing unit for controlling a plurality of functions and operations of said system; image capture means, operatively connected to said central processing unit, for generating a digital image of an observed image frame and for generating a plurality of image data associated with said generation of said image; wireless communication means, operatively connected to said central processing unit, for receiving data from objects in said observed image frame when said image is generated; geographic location determining means, operatively connected to said central processing unit, for determining geographic coordinates of said system when said digital image is generated; means for determining a time and a date when said image is generated; information receiving means, operatively coupled to said central processing unit, for receiving data associated with a user of said system when said digital image is generated; image processing means for receiving said plurality of parameters and recording said plurality of parameters with said generated digital image, said plurality of parameters including said plurality of image data, said object data, said time data, said date data, said location data, and said user data; and means, operatively coupled to said image processing means, for watermarking said plurality of parameters into said image.
Claim 3
Dependent Claim 40 words
2 . The system of claim 1 , further comprising means for specifying which of the plurality of parameters should be recorded with said image and for specifying which of said plurality of parameters should be watermarked in said image.
Claim 4
Dependent Claim 44 words
3 . The system of claim 2 , further comprising means for determining which of the plurality of parameters are specified to be recorded with said image and for determining which of the plurality of parameters are specified to be watermarked in said image.
Claim 5
Dependent Claim 20 words
4 . The system of claim 1 , further comprising means for extracting said watermarked parameters from said watermarked image.
Claim 6
Dependent Claim 27 words
5 . The system of claim 4 , further comprising means for comparing said extracted parameters with corresponding recorded parameters of said image to authenticate said image.
Claim 7
Dependent Claim 30 words
6 . The system of claim 1 , further comprising means for preventing said watermarking of said images if an image quality of said image is altered above a threshold.
Claim 8
Dependent Claim 24 words
7 . The system of claim 1 , further comprising image compression means, operatively coupled to said image processing means, for compressing said image.
Claim 9
Dependent Claim 24 words
8 . The system of claim 7 , wherein said plurality of parameters are watermarked in one of said compressed image and said image.
Claim 10
Dependent Claim 43 words
9 . The system of claim 1 , further comprising orientation determining means, operatively coupled to said central processing unit, for determining orientation data of said system when said digital image is generated; said orientation data being one of said plurality of parameters.
Claim 11
Dependent Claim 69 words
10 . The system of claim 4 , further comprising means for receiving one of verbal data and verbal commands; and means for processing said one of received verbal data and received verbal command, said processed verbal commands being used to control one of a plurality of function and operations of said system, said processed speech data being one of said plurality of parameters for annotating said digital image.
Claim 12
Dependent Claim 26 words
11 . The system of claim 1 , further comprising means for determining said location of said system when said geographic location determining means is inoperable.
Claim 13
Dependent Claim 50 words
12 . The system of claim 1 , wherein said plurality of image data associated with said generation of said image includes one of an image mode, image quality, exposure duration, aperture length, light meter reading, flash status, lens focal length, auto focus distance, frame number, and a combination thereof.
Claim 14
Dependent Claim 103 words
13 . In an image capturing system, a method for authenticating a captured image, comprising the steps of: measuring a plurality of parameters associated with said captured image; watermarking said plurality of parameters into said captured image to generate a watermarked image, and generating a verification key associated with said watermarked parameters; extracting said plurality of parameters from said watermarked image with said associated verification key; and comparing said extracted plurality of parameters from said watermarked image with said measured plurality of parameters associated with said captured image, whereby said captured image is authenticated if said extracted parameters match with said measured parameters.
Claim 15
Dependent Claim 103 words
13 . In an image capturing system, a method for authenticating a captured image, comprising the steps of: measuring a plurality of parameters associated with said captured image; watermarking said plurality of parameters into said captured image to generate a watermarked image, and generating a verification key associated with said watermarked parameters; extracting said plurality of parameters from said watermarked image with said associated verification key; and comparing said extracted plurality of parameters from said watermarked image with said measured plurality of parameters associated with said captured image, whereby said captured image is authenticated if said extracted parameters match with said measured parameters.
Claim 16
Dependent Claim 38 words
14 . The method of claim 14 , further comprising the step of recording said measured plurality of parameters associated with each captured image, said extracted parameters being compared with said recorded parameters to authenticate said captured image.
Claim 17
Dependent Claim 30 words
15 . The method of claim 14 , further comprising the step of specifying which of said measured plurality of parameters is to be watermarked into a corresponding captured image.
Claim 18
Dependent Claim 40 words
16 . The method of claim 14 , further including the step of transmitting said watermarked image and said associated verification key to a remote system, and said extracting step and said comparing step are performed in said remote system.
Claim 19
Dependent Claim 32 words
17 . The method of claim 14 , further comprising the step of compressing said captured image prior to said watermarking step, whereby said measured parameters are watermarked into said compressed image.
Claim 20
Dependent Claim 153 words
18 . A method for verifying the authenticity of a captured image, said captured image being generated by an image capturing system having means for measuring a plurality of parameters associated with said captured image and means for watermarking said plurality of parameters within said captured image, said method comprising the steps of: specifying at least one of said plurality of parameters to be measured and watermarked by said image capturing system; capturing an image of a desired object with said image capturing system; watermarking said captured image of said object with said specified parameters; generating a corresponding verification key based on said watermarked parameters; storing said watermarked image and said corresponding verification key; retrieving said watermarked image and said corresponding verification key; extracting from said watermarked image said watermarked parameters using said verification key; comparing said extracted parameters with said specified parameters to determine if said extracted parameters match said specified parameters.
Claim 21
Dependent Claim 153 words
18 . A method for verifying the authenticity of a captured image, said captured image being generated by an image capturing system having means for measuring a plurality of parameters associated with said captured image and means for watermarking said plurality of parameters within said captured image, said method comprising the steps of: specifying at least one of said plurality of parameters to be measured and watermarked by said image capturing system; capturing an image of a desired object with said image capturing system; watermarking said captured image of said object with said specified parameters; generating a corresponding verification key based on said watermarked parameters; storing said watermarked image and said corresponding verification key; retrieving said watermarked image and said corresponding verification key; extracting from said watermarked image said watermarked parameters using said verification key; comparing said extracted parameters with said specified parameters to determine if said extracted parameters match said specified parameters.
Claim 22
Dependent Claim 27 words
19 . The method of claim 19 , further comprising the step of recording said specified parameters, wherein said recorded parameters are compared with said extracted parameters.
Claim 23
Dependent Claim 39 words
20 . The method of claim 19 , wherein said step of recording said specified parameters includes one of electronically recording said specified parameters with said captured image and manually recording said specified parameters associated with said captured image.

References Cited (Backward Citations)

US5606609A Cited
US5875249A Cited
US5898779A Cited
US6216228B1 Cited
US6064764A Cited

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