Scanning and capturing digital images using layer detection

• US 8,610,924 B2
• Filed: 11/24/2009
• Issued: 12/17/2013
• Est. Priority Date: 11/24/2009
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Do, Lydia M., Nesbitt, Pamela A., DeLuca, Lisa S.
• Primary Examiner(s): SARPONG, AKWASI
• Application Number:
  US12/624,753
• Publication Number:
  US 20110122432A1
• Time in Patent Office: 1,484 Days
• Field of Search: 358/474, 358/1.2, 358/501, 358/453, 358/468, 399/371
• US Class Current: 358/1.15
• CPC Class Codes: H04N 1/203 Simultaneous scanning of two or more separate pictures , e.g. two sides of the same sheet refeeding a sheet for double-sided scanning H04N1/00572
• CPC Class Codes: H04N 1/2036 of a plurality of pictures corresponding to a single side of a plurality of media

Abstract

A mechanism for scanning and capturing digital images using document layer detection. Upon detecting a document placed on a scanning surface of a scanning device, the illustrative embodiments identify one or more layers within the document. The illustrative embodiments then scan the one or more layers within the document on a layer by layer basis.

Claims

1. A computer implemented method for scanning a document, the computer implemented method comprising:

detecting a document placed on a scanning surface of a scanning device;

identifying a plurality of layers within the document using depth edge detection; and

scanning, by the scanning device, the plurality of layers within the document on a layer by layer basis;

wherein each of the plurality of layers comprises a specific unique depth of field in the document that is different from other depths of field for other layers of the plurality of layers.

2. The computer implemented method of claim 1, further comprising:

storing each scanned layer as a separate file in memory.

3. The computer implemented method of claim 1, wherein identifying a plurality of layers within the document further comprises:

detecting lighting variations within the document; and

associating each detected lighting variation to a particular layer in the one or more layers within the document.

4. The computer implemented method of claim 1, wherein each of the plurality of layers comprises a specific unique color in the document that is different from other colors for other layers of the plurality of layers.

5. The computer implemented method of claim 4, wherein identifying a plurality of layers within the document further comprises:

detecting wavelengths of light reflected from the document; and

associating each detected wavelength of light to a particular layer in the plurality of layers within the document.

6. The computer implemented method of claim 1, wherein each of the plurality of layers comprises a specific unique type of content in the document that is different from other types of content for other layers of the plurality of layers.

7. The computer implemented method of claim 6, wherein identifying a plurality of layers within the document further comprises:

detecting various types of content within the document;

associating each detected type of content to a particular layer in the one or more layers within the document.

8. A data processing system for scanning a document the data processing system comprising:

a bus;

a storage device connected to the bus, wherein the storage device contains computer usable code; and

a processing unit connected to the bus, wherein the processing unit executes the computer usable code to detect a document placed on a scanning surface of a scanning device;

identify a plurality of layers within the document using depth edge detection; and

scan the plurality of layers within the document on a layer by layer basis;

Wherein each of the plurality of layers comprises a specific unique depth of field in the document that is different from other depths of field for other layers of the plurality of layers.

9. A Non-Transitory computer program product for scanning a document, the computer program product comprising:

a tangible computer usable storage device having computer usable program code stored thereon, the computer usable program code comprising;

computer usable program code for detecting a document placed on a scanning surface of a scanning device;

computer usable program code for identifying a plurality of layers within the document using depth edge detection; and

computer usable program code for scanning the plurality of layers within the document on a layer by layer basis;

wherein each of the plurality of layers comprises a specific unique depth of field in the document that is different from other depths of field for other layers of the plurality of layers.

10. The computer program product of claim 9, further comprising:

computer usable program code for storing each scanned layer as a separate file in memory.

11. The computer program product of claim 9 wherein the computer usable program code for identifying a plurality of layers within the document further comprises:

computer usable program code for detecting lighting variations within the document; and

computer usable program code for associating each detected lighting variation to a particular layer in the plurality of layers within the document.

12. The computer program product of claim 9, wherein each of the plurality of layers comprises a specific unique color in the document that is different from other colors for other layers of the plurality of layers.

13. The computer program product of claim 12, wherein the computer usable program code for identifying a plurality of layers within the document further comprises:

computer usable program code for detecting wavelengths of light reflected from the document; and

computer usable program code for associating each detected wavelength of light to a particular layer in the one or more layers within the document.

14. The computer program product of claim 9, wherein each of the plurality of layers comprises a specific unique type of content in the document that is different from other types of content for other layers of the plurality of layers.

15. The computer program product of claim 14, wherein the computer usable program code for identifying a plurality of layers within the document further comprises:

computer usable program code for detecting various types of content within the document;

computer usable program code for associating each detected type of content to a particular layer in the one or more layers within the document.

16. The computer program product of claim 9, wherein the computer usable program code is stored in a computer readable storage medium in a data processing system, and wherein the computer usable program code is downloaded over a network from a remote data processing system.

17. The computer program product of claim 9, wherein the computer usable program code is stored in a computer readable storage medium in a server data processing system, and wherein the computer usable program code is downloaded over a network from a remote data processing system for use in a computer readable storage medium with the remote system.