SYSTEM AND METHOD FOR RELIABLE CONTENT ACCESS USING A CELLULAR/WIRELESS DEVICE WITH IMAGING CAPABILITIES
First Claim
1. A method to use part of a printed or displayed medium for identifying a reference and using the reference to access at least one of information, services, and content related to the reference, the method comprising:
- capturing an image of the reference with an imaging device;
sending the image via a communications network to a processing center;
pre-processing by the processing center to identify at least one relevant frame within the image and to perform general purpose enhancement operations;
detecting most relevant frame within the image and frame properties comprising at least one of pixels, axis ratio, and illumination characteristics;
applying geometric, illumination, and focus correction on the most relevant frame;
using color, aspect ration, and frame color, to perform a coarse recognition and thereby limit a number of possible identifications of the reference within the most relevant frame; and
using resealing, histogram equalization, block labeling, edge operation, and normalized cross correlation, to identify the reference within the image.
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Abstract
A system and method for reliable content access using a cellular/wireless device with imaging capabilities, to use part of a printed or displayed medium for identifying and using a reference to access information, services, or content related to the reference, including capturing an image of the reference with an imaging device, sending the image via a communications network to a processing center, pre-processing to identify relevant frames within the image and to perform general purpose enhancement operations, detecting the most relevant frame within the image, and frame properties, applying geometric, illumination, and focus correction on the relevant frame, using color, aspect ration, and frame color, to perform a coarse recognition and thereby limit the number of possible identifications of a reference within the relevant frame, and using specific techniques of resealing, histogram equalization, block labeling, edge operation, and normalized cross correlation, to identify the reference within the image.
246 Citations
27 Claims
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1. A method to use part of a printed or displayed medium for identifying a reference and using the reference to access at least one of information, services, and content related to the reference, the method comprising:
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capturing an image of the reference with an imaging device;
sending the image via a communications network to a processing center;
pre-processing by the processing center to identify at least one relevant frame within the image and to perform general purpose enhancement operations;
detecting most relevant frame within the image and frame properties comprising at least one of pixels, axis ratio, and illumination characteristics;
applying geometric, illumination, and focus correction on the most relevant frame;
using color, aspect ration, and frame color, to perform a coarse recognition and thereby limit a number of possible identifications of the reference within the most relevant frame; and
using resealing, histogram equalization, block labeling, edge operation, and normalized cross correlation, to identify the reference within the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer program product, comprising instructions for causing a computer to perform a method comprising:
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capturing an image of a reference with an imaging device;
sending the image via a communications network to a processing center;
pre-processing by the processing center to identify at least one relevant frame within the image and to perform general purpose enhancement operations;
detecting most relevant frame within the image, and frame properties comprising at least one of pixels, axis ratio, and illumination characteristics;
applying geometric, illumination, and focus correction on the most relevant frame;
using color, aspect ration, and frame color, to perform a coarse recognition and thereby limit a number of possible identifications of the reference within the most relevant frame; and
using specific techniques of resealing, histogram equalization, block labeling, edge operation, and normalized cross correlation, to identify the reference within the image.
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21. A system for using part of a printed or displayed medium to identify a reference and use the reference to access at least one of information, services, and content related to the reference, the system comprising:
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a publisher that provides a page design, allocates space for code links, facilitates the activation of the code links to a user, provides content for the user from each activation code, verifies that experience of the user is adequate;
a page with natural links to sources of information;
wherein the user detects the natural links of interest and scans said natural links to receive information;
a user interface unit used by the user to scan the natural links;
a communication network that provides a communication link between the user interface unit and computational facilities, wherein the computational facilities provide code detection, code recognition, content routing, and interaction with the user via the user interface unit; and
content related to the natural link. - View Dependent Claims (22, 23, 24, 25)
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26. A device for using part of a printed or displayed medium to access at least one of information, services, and content related to a natural link, the device comprising:
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an image and video input channel which allows imaging of a natural link used to access said at least one of information, services, and content related to the natural link;
an image and video display channel which allows feedback from a keypad input channel and remote computational facilities, wherein the computational facilities detect and recognize the natural link, obtain and route said at least one of information, services, and content related to the natural link; and
a keypad input channel that allows the user to communicate with remote computational facilities when activating said code detection and said code recognition.
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27. A device for identifying a natural link in part of a printed or displayed medium and using the natural link to access at least one of information, services, and content related to a natural link, the device comprising:
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a data storage server which stores user'"'"'s requests, logs request information, stores content later presented to the user, and stores natural links corresponding to the content in a database;
an application server which allows access to content based on a recognized natural link, provides billing services, and manages communication with a user;
an image detection and recognition server which detects frame of the natural link and performs recognition on a symbol of the natural link;
a video and image preprocessing server that combines video frames and frames from various requests for best resulting image, supports zoom-on activation mechanisms, and provides basic image improvement services prior to additional dedicated processing; and
a data routing server which allows interface with various communication protocols supported by a communication network, user feedback, and data distribution to various content providers, wherein the natural link is on a printed or displayed medium and is a link to corresponding content.
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Specification