Systems and methods of processing scanned data

• US 8,749,839 B2
• Filed: 01/11/2006
• Issued: 06/10/2014
• Est. Priority Date: 03/24/2005
• Status: Active Grant

• Current Assignee: Kofax Incorporated
• Original Assignee: Kofax Incorporated
• Inventors: Borrey, Roland G., Schmidtler, Mauritius A. R., Taylor, Robert A., Fechter, Joel S., Asuri, Hari S.
• Primary Examiner(s): Popovici, Dov
• Application Number:
  US11/329,999
• Publication Number:
  US 20060215231A1
• Time in Patent Office: 3,072 Days
• US Class Current: 358/1.6
• CPC Class Codes: G06K 15/407 Managing marking material, e.g. checking available colours
• CPC Class Codes: G06T 5/00 Image enhancement or restoration
• CPC Class Codes: G06V 10/242 by image rotation, e.g. by 90 degrees
• CPC Class Codes: H04N 1/40 Picture signal circuits H04N1/387 takes precedence

Abstract

Techniques and systems to enhance digital acquisition devices are presented. The enhancements are available to the user in local as well as in remote deployments yielding efficiency gains for a large variety of business processes. The quality enhancements are achieved efficiently by employing virtual reacquisition. The method of virtual reacquisition renders unnecessary the physical reacquisition of analog data in case the digital data obtained by the acquisition device are of insufficient quality. The method and system allows multiple users to access the same acquisition device for analog data. In some One or more users can virtually reacquire data provided by multiple analog or digital sources. The acquired raw data can be processed by each user according to his personal preferences and/or requirements. The preferred processing settings and attributes are determined interactively in real time as well as non real time, automatically and a combination thereof.

Claims

1. A computer-implemented data processing method comprising:

storing raw or normalized data from a data capture device in a computer accessible storage medium;

analyzing at least portions of the raw or normalized data with a first analytic engine to

determine whether the raw data is within a first set of parameters and if not, generating with the first analytic engine a first set of processor settings;

processing the raw or normalized data with the first set of processor settings; and

analyzing at least portions of the processed data with a second analytic engine to determine whether the processed data is within a second set of parameters and if not, generating with the second analytic engine a second set of processor settings to reprocess the raw or normalized data,

sending the second set of processor settings and metadata relating to the raw or normalized data to the first analytic engine; and

reprocessing the raw or normalized data with the first analytic engine using the second set of processor settings, the reprocessing being based at least in part on the metadata,

wherein the second set of parameters is different than the first set of parameters,

wherein the second set of parameters comprises a predetermined metric, and

wherein at least one of the first set of processors settings and the second set of processor settings relate to one or more image characteristics selected from;

brightness, contrast, gamma erosion, orientation, segmentation, saturation, color rendering, resolution, warp angle, skew angle, despeckling, dilation and sequence detection.

2. The method of claim 1, further comprising repeating the steps of:

analyzing at least portions of the processed data with the second analytic engine to determine whether the processed data is within the second set of parameters;

generating with the second analytic engine the second set of processor settings to reprocess the raw or normalized data; and

reprocessing the raw or normalized data with the set of processor settings until the processed data is within the second set of parameters.

3. The method of claim 1 wherein the data capture device comprises a scanner, a camera, an infrared camera, an acoustic camera, a digital camera, a video recorder, an acoustic sensor, or a facsimile machine.

4. The method of claim 1, wherein at least one of the analyzing at least portions of the raw or normalized data with the first analytic engine and the analyzing at least portions of the processed data with the second analytic engine comprises performing one or more analyses selected from:

page boundary detection;

streak detection;

page border detection;

page border shadow detection;

blank page detection;

color representation conversion;

luminescence measurement;

grayscale intensity histogram analysis;

geometric analysis, and

textual orientation analysis.

5. The method of claim 1 wherein at least one of the analyzing at least portions of the raw or normalized data with the first analytic engine and the analyzing at least portions of the processed data with the second analytic engine comprises performing one or more analyses selected from:

streak detection;

blank page detection;

shadow detection;

color representation conversion;

luminescence measurement;

grayscale intensity histogram analysis; and

color intensity histogram analysis.

6. The method of claim 1 wherein the processing comprises applying at least one of a detection orientation algorithm, a detect bleed-through algorithm, a background smoothing algorithm, and a detection of scanned page boundaries algorithm.

7. The method of claim 1, further comprising storing the metadata in the computer accessible storage medium, the metadata relating to one or more of the raw or normalized data and the processed data.

8. The method of claim 7, wherein the metadata comprise one or more of:

a tag identifying the stored raw or normalized data;

a tag identifying a subsection of the stored raw or normalized data;

a tag identifying a storage location of the stored raw or normalized data in the computer accessible storage medium;

an acquisition timestamp corresponding to the stored raw or normalized data;

a sequence number;

an indicator corresponding to a beginning of a data band;

an indicator corresponding to an end of the data band; and

a pointer corresponding to a second data band.

9. The method of claim 7, further comprising displaying the metadata and data relating to the metadata;

and

receiving user input relating to the displayed metadata and/or the displayed data relating to the metadata.

10. A data processing system comprising:

raw or normalized data from a data capture device wherein the raw or normalized data is stored in a computer accessible storage medium;

metadata relating to the raw or normalized data wherein the metadata are stored in the computer accessible storage medium;

a first acquisition controller in communication with the data capture device, the first acquisition controller configured to analyze at least portions of the raw or normalized data to determine whether the raw or normalized data is within a first set of parameters and if not, the first acquisition controller generates a first set of processor settings;

a processor in communication with the first acquisition controller wherein the processor is configured to;

reprocess the raw or normalized data using a second set of processor settings if the processed data is not within a second set of parameters, the reprocessing being based at least in part on the metadata;

a second acquisition controller in communication with the processor, the second acquisition controller configured to;

analyze at least portions of the processed data to determine whether the processed data is within the second set of parameters and if not, the second acquisition controller generates the second set of processor settings that the processor uses to reprocess the raw data; and

send the second set of processor settings and the metadata to the first acquisition controller;

wherein the second set of parameters is different than the first set of parameters, and

wherein the second set of parameters comprises a predetermined metric.

11. The data processing system of claim 10 wherein the data capture device comprises a scanner, a camera, an infrared camera, an acoustic camera, a digital camera, a video recorder, a temperature sensor, an acoustic sensor, or a facsimile machine.

12. The data processing system of claim 10, wherein processing comprises orientation detection.

13. The data processing system of claim 12, wherein the orientation detection comprises a connected component analysis.

14. The data processing system of claim 10, wherein processing comprises filtering one or more non-character elements represented in the raw or normalized data.

15. The data processing system of claim 10, wherein processing comprises color correction.

16. The processing system of claim 15, wherein the color correction comprises histographic analysis.

17. The data processing system of claim 15, wherein the color correction comprises clustering analysis.

18. A document processing system comprising:

document data from a capture device wherein the document data is stored in a computer accessible storage medium;

a first acquisition controller in communication with the data capture device, the first acquisition controller configured to analyze at least portions of the document data to determine whether the document data is within a first set of parameters and if not, the first acquisition controller generates a first set of processor settings;

a processor in communication with the first acquisition controller wherein the processor is configured to;

process the document data with the first set of processor settings; and

reprocess the document data using a second set of processor settings if the processed document data is not within a second set of parameters, the reprocessing being based at least in part on metadata relating to the document data;

a second acquisition controller in communication with the processor, the second acquisition controller configured to;

analyze at least portions of the processed document data and the metadata associated with the processed document data to determine whether the processed document data is within a second set of parameters and if not the second acquisition controller generates a second set of processor settings that the processor uses to reprocess the document data; and

send the second set of processor settings and the metadata to the first acquisition controller;

wherein the second set of parameters is different than the first set of parameters, and

wherein the second set of parameters comprises a predetermined metric.

19. The document processing system of claim 18, wherein the data capture device comprises a scanner, a camera, an infrared camera, an acoustic camera, a digital camera, a video recorder, an acoustic sensor, or a facsimile machine.

20. The document processing system of claim 18, wherein the processing comprises a windowed analysis.

21. The document processing system of claim 18, wherein the processing comprises applying at least one of a detection orientation algorithm, a detect bleed-through algorithm, a background smoothing algorithm, and a detection of scanned page boundaries algorithm.

22. The document processing system of claim 18, wherein the processing comprises page boundary detection.

23. The document processing system of claim 22, wherein the page boundary detection comprises:

statistically analyzing portions of the document data corresponding to at least two image corner region;

aggregating results of the statistically analyzed portions; and

defining one or more background properties based at least in part on the aggregated results.

24. The document processing system of claim 23, wherein the page boundary detection further comprises identifying one or more pixels characterized by at least one statistical property significantly from a corresponding background property.

25. The document processing system of claim 18 wherein the processing comprises background smoothing.

26. The document processing system of claim 18 wherein the second set of parameters is associated with qualitative analyses with regard to text classification.

27. The document processing system of claim 18 wherein the second set of parameters is associated with qualitative analyses with regard to image classification.

28. The document processing system of claim 18 wherein the second set of parameters is associated with qualitative analyses with regard to form recognition.