Matches 1 - 44 out of 44
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7406195 Robust recognizer of perceptually similar content  
An implementation of a technology is described herein for recognizing the perceptual similarity of the content of digital goods. At least one implementation, described herein, introduces a new...
7394940 Digital video media duplication or transmission quality measurement  
A system and method for measuring video quality of a video image, wherein the system comprises a source device comprising an original video image; a receiver comprising a received video image; a...
7360093 System and method for authentication of JPEG image data  
A system and method for authentication of JPEG image data enables the recipient to ascertain whether the received image file originated from a known identified source or whether the contents of the...
7356188 Recognizer of text-based work  
Described herein is a technology for recognizing the content of text documents. The technology determines one or more hash values for the content of a text document. Alternatively, the technology...
7346776 Authenticating media signals by adjusting frequency characteristics to reference values  
A method of authenticating a media signal and related software, systems and applications. The method transforms at least a portion of the media signal into a set of frequency coefficients in a...
7318158 Derivation and quantization of robust non-local characteristics for blind watermarking  
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
7318157 Derivation and quantization of robust non-local characteristics for blind watermarking  
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
7315947 Author signatures for legal purposes  
Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent...
7313696 Method for authentication of JPEG image data  
A method enables a recipient of JPEG image data to authenticate the JPEG image data by producing a hashing function from a first section of the JPEG image data. A first integrity checking value is...
7277468 Measuring quality of service of broadcast multimedia signals using digital watermark analyses  
The disclosure details a method of measuring the quality of service of broadcast media signals by analyzing digital watermarks embedded in the received broadcast signal. This method enables the...
7268906 Systems and methods for authenticating and verifying documents  
Xerox Docket No. D/A0037Q Document authentication is accomplished by acquiring document image data, generating a set of features of the document, and generating an assist channel that includes...
7266244 Robust recognizer of perceptually similar content  
An implementation of a technology is described herein for recognizing the perceptual similarity of the content of digital goods. At least one implementation, described herein, introduces a new...
7254249 Embedding location data in video  
Digital watermarking technology is used to convey location data for images or objects depicted in video. A digital watermark may associate geovector information with the video or object and areas...
7249257 Digitally watermarked maps and signs and related navigational tools  
Maps and signs are embedded with plural-bit data in the form of digital watermarks. In one embodiment, the plural-bit data includes location information with respect to a map. A handheld reading...
7240210 Hash value computer of content of digital signals  
Described herein is a technology for facilitating the recognition of the content of digital signals. This abstract itself is not intended to limit the scope of this patent. The scope of the present...
7197694 Image display system, image registration terminal device and image reading terminal device used in the image display system  
An image display system which improves the ease of use provided to an operator when an alteration is detected in image data that is to be displayed. An electronic watermark detecting section and...
7197160 Geographic information systems using digital watermarks  
The present invention relates to systems and methods for managing images and related information. In one implementation, geographic information system (GIS) layer information is registered or...
7197159 Amplitude shifted information embedding and detection method based upon the phase equalization  
An amplitude shifted information embedding and detection method based upon the phase equalization is disclosed. It utilizes an equalization function to perform equalization computations on the DCT...
7188249 Derivation and quantization of robust non-local characteristics for blind watermarking  
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
7188065 Categorizer of content in digital signals  
Described herein is a technology for facilitating the recognition and categorization of the content of digital signals. This abstract itself is not intended to limit the scope of this patent. The...
7184572 Using steganographic encoded information with maps  
A map depicts a plurality of different locations. Steganographic encoding is embebbed in first and second map areas. Steganographic encoding in each area conveys an identifier that is associated...
7181622 Derivation and quantization of robust non-local characteristics for blind watermarking  
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
7159117 Electronic watermark data insertion apparatus and electronic watermark data detection apparatus  
An electronic watermark data insertion apparatus comprises an insertion information memory ( 39 ) for preliminarily storing insertion information for designating electronic watermark data to be...
7152163 Content-recognition facilitator  
Described herein is a technology for facilitating the recognition of the content of digital signals. This abstract itself is not intended to limit the scope of this patent. The scope of the present...
7136535 Content recognizer via probabilistic mirror distribution  
An implementation of a technology, described herein, for facilitating the recognition of content of digital goods. At least one implementation, described herein, derives a probabilistic mirror...
7120607 Business system and method using a distorted biometrics  
A method of doing business is disclosed that transforms a biometric used by a user in a transaction. The transformation creates a distorted biometric. The distorted biometric is used to identify...
7099492 Method of steganographically embedding geo-location data in media  
Digital watermarking technology is used in conjunction with map data, such as is acquired by satellite and other aerial sensors, and as may be generated from databases based on such aerial data....
7098931 Image management system and methods using digital watermarks  
Digital watermarking technology is used in an image management system. Images are uniquely identified by digital watermarks. The images are stored so as to be indexed according to their unique...
7095873 Watermarking via quantization of statistics of overlapping regions  
An implementation of a technology, described herein, for facilitating watermarking of digital goods. At least one implementation, described herein, performs quantization watermarking based upon...
7079689 Image processing apparatus and its method, and program  
An initial similarity candidate calculator calculates a similarity between first and second images, which are expressed by quantized DCT coefficients, on the basis of at least first and second...
7072493 Robust and stealthy video watermarking into regions of successive frames  
A technology is described herein for the protection of rights in the content of a video sequence. In one example the technology embeds an information pattern in one or more regions of a video...
7061510 Geo-referencing of aerial imagery using embedded image identifiers and cross-referenced data sets  
Digital watermarking technology is used in conjunction with map data, such as is acquired by satellite and other aerial sensors, and as may be generated from databases based on such aerial data....
7042470 Using embedded steganographic identifiers in segmented areas of geographic images and characteristics corresponding to imagery data derived from aerial platforms  
Digital watermarking technology is used in conjunction with map data, such as is acquired by satellite and other aerial sensors. The watermarks are used to track metadata, provide serialization and...
7028189 Derivation and quantization of robust non-local characteristics for blind watermarking  
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
7020777 Derivation and quantization of robust non-local characteristics for blind watermarking  
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
7006703 Content recognizer via probabilistic mirror distribution  
An implementation of a technology, described herein, for facilitating the recognition of content of digital goods. At least one implementation, described herein, derives a probabilistic mirror...
6993152 Hiding geo-location data through arrangement of objects  
The present invention provides steganographic-embedding techniques. In one implementation a digital watermark signal is mapped to a set of spatial positions. Physical message objects are positioned...
6975743 Robust and stealthy video watermarking into regions of successive frames  
An implementation of a technology is described herein for the protection of rights in the content of a video sequence. This technology further generally relates to a technology facilitating...
6959383 Method and device for incorporating additional information into main information through electronic watermaking technique  
Two data units are selected from main information, such as MIDI data, into which additional information is to be incorporated, to calculate a difference between respective values of the two data...
6950519 Geographically watermarked imagery and methods  
An image is digitally watermarked to convey position data about the subject of the image, such as latitude, longitude and elevation of a point depicted therein. Additional information, e.g., about...
6907527 Cryptography-based low distortion robust data authentication system and method therefor  
A method (and system) for generating an output file from a source file where benign modifications to a content of the output file still render the output file authentic, includes constructing an...
6879703 Method and apparatus for watermarking images  
Digital watermarks are embedded in image data ( 102 )in order to enable authentication of the image data and/or replacement of rejected portions of the image data. Authentication codes are derived...
6725372 Digital watermarking  
The invention is a system for digital watermarking that operates on a conventional digital video stream to etch, on hand, and read, on the other hand, digital watermarks in the stream that do not...
6664976 Image management system and methods using digital watermarks  
Digital watermarking technology is used in an image management system. Images are identified by digital watermarks. The images are stored so as to be indexed according to their unique identifiers....
Matches 1 - 44 out of 44