Document Conversion Correlation Engine
AssigneeChegg, Inc.
InventorsVincent Le Chevalier, Charles F. Geiger
Life of this patent
Estimating the term…
Abstract
Embodiments of the disclosure provide a system for correlating document pages. The system receives a source image of a document page and a rendered image of a markup language page converted from the document page. The system then performs a correlation analysis between the source image and the rendered image. Next, the system determines a correlation factor between the source image and the rendered image based on the correlation analysis, wherein the correlation factor indicates a page fidelity between the document page and the markup language page converted from the document page.
Claims24
A method of correlating document images, the method comprising:
- receiving a source image of a document page;
- receiving a rendered image of a markup language page converted from the document page;
- performing, by a computer, a correlation analysis between the source image and the rendered image;
- and
- determining, by the computer, a correlation factor between the source image and the rendered image based on the correlation analysis, wherein the correlation factor indicates a page fidelity between the document page and the markup language page converted from the document page.
A non-transitory computer-readable storage medium storing executable computer program instructions for document images correlation, the computer program instructions comprising instructions for:
- receiving a source image of a document page;
- receiving a rendered image of a markup language page converted from the document page;
- performing a correlation analysis between the source image and the rendered image;
- and
- determining, by the computer, a correlation factor between the source image and the rendered image based on the correlation analysis, wherein the correlation factor indicates a page fidelity between the document page and the markup language page converted from the document page.
A system for correlating document images, the system comprises:
- a processor;
- a receiving mechanism configured to receive a source image of a document page and a rendered image of a markup language page converted from the document page;
- a correlation-analysis mechanism, coupled to the processor, configured to perform a correlation analysis between the source image and the rendered image, and determine a correlation factor between the source image and the rendered image based on the correlation analysis, wherein the correlation factor indicates a page fidelity between the document page and the markup language page converted from the document page.
Dependencies are inferred from the claim text.