摘要:
Stationery, or other printable media, is encoded with a digital watermark. The watermark is not conspicuous to a human observer of the media, yet conveys plural bits of auxiliary information when optically scanned and digitally processed. The watermark can be formed by ink-jet printing, or otherwise. The encoded information can be used for various purposes, including authenticating the document as an original, linking to associated on-line resources, and distinguishing seemingly-identical versions of the same document (document serialization).
摘要:
A first illumination section radiates light at a certain degree of illuminance toward the face of a human recognition object from an upper right part or an upper left part of a camera, and a second illumination section radiates light at a certain degree of illuminance toward the face of the human recognition object from a lower part of a camera. The camera photographs and inputs a facial image of the human recognition object. The image processing section extracts a feature value of the face of the human recognition object from a facial image inputted by the camera and collates the feature value extracted with a standard feature value registered in advance so as to recognize a facial image of the human recognition object.
摘要:
Means and a method for authenticating a photographic image (3) on an identification device (1), the identification device (1) being provided with: a photographic image of a person (3) and a microprocessor (8), the microprocessor (8) having: a) a processor (7), b) a memory (9) connected to the processor (7) and having stored authentication data, and c) interface means (5) connected to the processor (7) for communicating with an external device, wherein said photographic image (3) comprises stegano-graphically hidden information, the content of which together with said authentication data allows authentication of said photographic image (3), the method having the following steps: a′) scanning the photographic image (3) and generating image data. b′) analyzing these image data in accordance with a predetermined image analysis procedure to derive said hidden information, and c′) carrying out the authentication of the photographic image (3) based on the hidden information and the authentication data.
摘要:
In a method and a related system for providing perimeter security so as to restrict entry to authorized persons among a larger group of persons, not all of whom may be authorized, a token is issued to each person of the larger group. The token displays or identifies a unique set of electronically readable data identifying that person, who can present the token when seeking entry. Moreover, a photograph image of each person of the larger population is entered into a database, which is maintained in a computer having a display, preferably a portable or hand-held computer. The data displayed or recorded by each token presented by a person seeking entry are read, via an electronic reader, and the read data are sent to the computer. The sent data are compared to the database, via the computer, and the photographic image entered on the database of the person identified by the sent data is displayed, via the display.
摘要:
The present invention relates watermarking compressed objects. A watermark is determined for a compressed video object. The watermark is compressed as an object and the watermarked object is then associated with the compressed video object. The two separate objects are provided to a rendering device, which after decompressing both objects, embeds the watermark in the video prior to rendering.
摘要:
This invention provides a process and apparatus, using a computer system, peripheral equipment and uniquely designed software, for electronically capturing the image(s) of one or more persons and/or objects, associating such image(s) with a database record and printing or otherwise transferring to a document (including, but not limited to, tickets, cards, tags and passes) a unique coding or symbology. When later required, the person(s) and/or object(s) associated with the document can be verified by visually comparing such person(s) or object(s) with the displayed image(s) recalled from the computer memory by using the symbology on the document to locate the database record and image file, or reconstructed from the symbology or coding on the document itself by using various decoding algorithms.
摘要:
The present invention relates to a data hiding method that includes changing values of input pixels corresponding to an input two-dimensional image to encode an N-bit auxiliary data signal therein, thereby yielding encoded output pixels defining an encoded output image. N comprises at least two. The method is characterized in that the N-bit auxiliary data signal is redundantly encoded in the image by at least: changing values of input pixels in a first image location according to a first pattern in order to encode the N-bit auxiliary data signal therein; changing the pattern according to a key to yield a second pattern; and changing values in a second image location according to the second pattern in order to encode the N-bit auxiliary data signal therein.
摘要:
A tangible object (such as a microprocessor, wristwatch, pharmaceutical, compact disc, vehicle part, etc) is surface-textured to encode a plural-bit code thereon. In one arrangement, this encoding conveys date information. In use, the object can be imaged by a scanner apparatus, and the resulting scan data analyzed to discern the plural-bit code. The decoded date information can be used in a determination relating to the object. For example, at a port of entry, date information encoded on a Rolex wristwatch can be used to determine whether importation of the wristwatch should be permitted. The texture-encoded data can also convey other information, such as a vehicle identifier for an automotive part, a place of fabrication, a specification with which the part complies, etc.
摘要:
A system for managing token image replacement is provided. The system includes a remote server, a personal computer (PC) connected to the remote server, a smartcard that can be read by the PC, and a card image server. Using application logic and rules, the remote server is able to read the card image on the smartcard and determine if the card image on the smartcard needs to be updated. If an indicator on the smartcard is set to nullupdatenull, the remote server then retrieves a backup card image that corresponds to the card from the card image server. The remote server forwards the backup card image to the PC which, in turn, writes the backup card image including transaction information to the smartcard. Once the backup card image is written onto the smartcard, the indicator in the smartcard is then reset to ensure that subsequent interactions with the system would not initiate an update.
摘要:
The present invention relates to detecting digital watermarks. In a preferred embodiment, media is embedded with a digital watermark component. The media includes a cyan color plane, a magenta color plane, a yellow color plane, and a black color plane. The digital watermark component is embedded in the cyan, magenta, and yellow color planes. The digital watermark component is inverted and is embedded in the black color plane. The embedded media is illuminated with infrared light, which emphasizes the black color plane. An input device captures a digital image of the illuminated media. The digital watermark component is detected from the emphasized black plane.