Image capturing system and method for automatically watermarking recorded parameters for providing digital image verification
First Claim
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 object data from objects in said observed image frame when said image is generated, said object data comprising object identification information;
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 user data associated with a user of said system when said digital image is generated, said user data comprising user identification information;
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.
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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.
101 Citations
22 Claims
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1. An image capturing system for automatically recording and watermarking a plurality of parameters in a captured image, comprising:
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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 object data from objects in said observed image frame when said image is generated, said object data comprising object identification information; 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 user data associated with a user of said system when said digital image is generated, said user data comprising user identification information; 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In an image capturing system, a method for authenticating a captured image, comprising the steps of:
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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. - View Dependent Claims (14, 15, 16, 17, 21)
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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:
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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. - View Dependent Claims (19, 20, 22)
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Specification