Method and systems for processing text found in images
First Claim
1. A method comprising:
- receiving data corresponding to an image, wherein the image includes a depiction of text;
recognizing at least some of the depicted text; and
steganographically encoding a digital watermark in the image, wherein the steganographically encoded digital watermark associates the image with the recognized text, wherein the watermark comprises a visually imperceptible carrier of an identifier, and wherein the identifier comprises an index to a record of a database that includes additional information related to the image.
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Accused Products
Abstract
An image containing text (e.g., a surveillance camera photo that includes a vehicle license plate) is analyzed to determine the text (e.g., by an OCR technique). The recognized text is then stored in a database. The image is digitally watermarked with an identifier that associates the image with the database location where the text is stored. In addition to surveillance contexts, this technology can be employed in indexing the World Wide Web. Images used in web pages can be watermarked to link to associated text or other data. When the web page is crawled by an indexer, the watermark can be decoded and the associated data repository accessed to obtain information that can augment the web index for that page.
48 Citations
18 Claims
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1. A method comprising:
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receiving data corresponding to an image, wherein the image includes a depiction of text; recognizing at least some of the depicted text; and steganographically encoding a digital watermark in the image, wherein the steganographically encoded digital watermark associates the image with the recognized text, wherein the watermark comprises a visually imperceptible carrier of an identifier, and wherein the identifier comprises an index to a record of a database that includes additional information related to the image. - View Dependent Claims (2, 3, 4, 5, 9, 10, 11)
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6. A system comprising:
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a scanner configured to produce scan data corresponding to an original document; an OCR engine configured to recognize text from the scan data; and a watermarker configured to alter the scan data to steganographically encode a digital watermark in the scan data, wherein the watermark associates the scan data with the recognized text, wherein the watermark comprises a visually imperceptible carrier of an identifier, and wherein the identifier comprises an index to a record of a database that includes additional information related to the scan data. - View Dependent Claims (7, 8, 12, 13, 14)
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15. A non-transitory computer-readable medium having instructions stored thereon, that when executed by a computing device cause the computing device to perform operations comprising:
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receiving data corresponding to an image, wherein the image includes a depiction of text; recognizing at least some of the depicted text; and steganographically encoding a digital watermark in the image, wherein the steganographically encoded digital watermark associates the image with the recognized text, wherein the watermark comprises a visually imperceptible carrier of an identifier, and wherein the identifier comprises an index to a record of a database that includes additional information related to the image. - View Dependent Claims (16, 17, 18)
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Specification