Page-independent multi-field validation in document capture

• US 9,317,484 B1
• Filed: 12/19/2012
• Issued: 04/19/2016
• Est. Priority Date: 12/19/2012
• Status: Active Grant

• Current Assignee: EMC Corporation (Dell Technologies Inc.)
• Original Assignee: EMC Corporation (Dell Technologies Inc.)
• Inventors: Ho, Ming Fung
• Primary Examiner(s): Ries, Laurie
• Application Number:
  US13/720,679
• Time in Patent Office: 1,217 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 18/2178 based on feedback of a supervisor
• CPC Class Codes: G06F 3/0483 Interaction with page-structured environments, e.g. book metaphor
• CPC Class Codes: G06F 40/226 Validation
• CPC Class Codes: G06V 10/987 with the intervention of an operator
• CPC Class Codes: G06V 30/19167 Active pattern learning
• CPC Class Codes: G06V 30/412 Layout analysis of documents structured with printed lines or input boxes, e.g. business forms or tables

Abstract

Techniques to validate data in document capture are disclosed. An indication is received that a validation rule associated with two or more dependent fields in a data entry form comprising data values extracted from a multi-page document has failed. Ahuman validation interface is provided that enables an operator to view the affected dependent fields and for each an associated document image portion from which a corresponding data value was extracted, including by providing automated navigation to and display of the affected dependent fields.

Claims

1. A method of validating data, comprising:

extracting data values from digital content that is generated by recognizing characters or marks from a multi-page document;

generating a data entry form comprising the data values extracted from the digital content;

receiving an indication that one or more validation rules associated with two or more dependent fields in the data entry form comprising the data values extracted from the digital content has failed;

providing a human validation interface that enables an operator to view the affected dependent fields and for each an associated document image portion from which a corresponding data value was extracted, including by providing automated navigation to and display of the affected dependent fields;

receiving operator input that changes a data value of one or more of the affected dependent fields, and in response to the operator input, re-evaluating a first validation rule of the one or more validation rules; and

re-evaluating a second validation rule of the one or more validation rules affected by the changes to the data value of said one or more of the affected dependent fields.

2. The method of claim 1, wherein the affected dependent fields are associated with content that occurs on two or more different pages of the multi-page document.

3. The method of claim 2, wherein the interface presents the dependent fields and associated data values and document image portions without requiring the operator to navigate manually to a different page or data entry form.

4. The method of claim 1, wherein the human validation interface enables the operator to cycle through the affected dependent fields sequentially.

5. The method of claim 1, wherein the human validation interface displays the affected dependent fields and associated data values simultaneously.

6. The method of claim 5, wherein the human validation interface displays the affected dependent fields and associated data values simultaneously and least in part by generating dynamically and displaying to the operator a sub-form.

7. The method of claim 1, further comprising receiving a definition of the validation rule.

8. The method of claim 7, wherein the validation rule defines a dependency between the dependent fields without reference to a page location within the multi-page document.

9. The method of claim 7, further comprising associating the validation rule with a document type with which the data entry form is associated.

10. The method of claim 1, wherein the multi-page document is captured by scanning a multi-page physical document.

11. The method of claim 1, wherein the digital content is generated using one or more of Optical Character Recognition (OCR) or Optical Mark Recognition (OMR).

12. The method of claim 1, wherein the generating of the data entry form comprises populating a single electronic form that corresponds to a multi-page document.

13. The method of claim 1, wherein the generating of the data entry form comprises determining relationships between one or more data values extracted from digital content associated with a first page of the multi-page document and one or more data values extracted from digital content associated with a second page of the multi-page document.

14. A document capture system, comprising:

a display device; and

a processor coupled to the display device and configured to;

extract data values from digital content that is generated by recognizing characters or marks from a multi-page document;

generate a data entry form comprising the data values extracted from the digital content;

receive an indication that one or more validation rules associated with two or more dependent fields in the data entry form comprising the data values extracted from the digital content has failed;

provide via the display device a human validation interface that enables an operator to view the affected dependent fields and for each an associated document image portion from which a corresponding data value was extracted, including by providing automated navigation to and display of the affected dependent fields;

receive operator input that changes a data value of one or more of the affected dependent fields, and in response to the operator input, re-evaluate a first validation rule of the one or more validation rules; and

re-evaluate a second validation rule of the one or more validation rules affected by the changes to the data value of said one or more of the affected dependent fields.

15. The system of claim 14, wherein the affected dependent fields are associated with content that occurs on two or more different pages of the multi-page document.

16. The system of claim 15, wherein the interface presents the dependent fields and associated data values and document image portions without requiring the operator to navigate manually to a different page or data entry form.

17. The system of claim 14, wherein the processor is configured to display the affected dependent fields and associated data values simultaneously, via the human validation interface, at least in part by generating dynamically and displaying via the display device a sub-form.

18. The system of claim 14, wherein the validation rule defines a dependency between the dependent fields without reference to a page location within the multi-page document.

19. The system of claim 14, further comprising a memory or other data storage device coupled to the processor and configured to store on or both of the data entry form and said data values extracted from the multi-page document.

20. The system of claim 14, wherein the processor is further configured to apply the validation rule and mark the affected dependent fields as having an error in the event the validation rule fails.

21. A computer program product to validate data, the computer program product being embodied in a tangible computer readable storage medium and comprising computer instructions for:

extracting data values from digital content that is generated by recognizing characters or marks from a multi-page document;

generating a data entry form comprising the data values extracted from the digital content;

receiving an indication that one or more validation rules associated with two or more dependent fields in the data entry form comprising the data values extracted from the digital content has failed;

providing a human validation interface that enables an operator to view the affected dependent fields and for each an associated document image portion from which a corresponding data value was extracted, including by providing automated navigation to and display of the affected dependent fields;

receiving operator input that changes a data value of one or more of the affected dependent fields, and in response to the operator input, re-evaluating a first validation rule of the one or more validation rules; and

re-evaluating a second validation rule of the one or more validation rules affected by the changes to the data value of said one or more of the affected dependent fields.