Automatic image capture
AssigneeiParse, LLC
InventorChristopher E. Tilt
Life of this patent
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Abstract
An improved automatic image capture system for an intelligent mobile device having a camera guides a user to position the camera so only a single image needs to be automatically captured. Syntactic features, using a view finder on a display of the intelligent mobile device, are used to guide a user to maximize the occupancy of the view finder with the document so that the document is maximized within the view finder based upon detected corners of the document. When occupancy is maximized, the camera automatically captures the image of the document for post-processing using semantic knowledge of the document. A confidence level is computed based on the semantic knowledge to qualify an image with greater accuracy, and without user intervention, prior to transmission to a remote site.
Claims12
A method of automatic image capture of a target document using an intelligent mobile device having a camera comprising the steps of:
- showing a view finder on a display of the intelligent mobile device and a secondary view finder of corresponding shape to the view finder;
- lining up the two view finders until the secondary view finder superimposed on the view finder;
- guiding a user to maximize occupancy of the view finder with an image of the target document as a first condition;
- automatically capturing the target document image when the occupancy is maximized to produce a captured image;
- and
- semantically processing the captured image to qualify the captured image for transmission to a remote site, wherein the semantically processing step comprising the steps of:
- providing semantic knowledge of the target document within the mobile device;
- by using optical character recognition, measuring a confidence level of each character in the target document image based upon the semantic knowledge of the target document;
- and
- qualifying the target document image for transmission to a remote site when an average confidence level for ad the characters achieves a specified score.
A method of automatic image capture of a target document using an intelligent mobile device having a camera comprising the steps of:
- showing a trapezoidal view finder on a display of the intelligent mobile device and a secondary view finder of corresponding shape to the trapezoidal view finder;
- lining up the trapezoidal view finder and the secondary view finder until the secondary view finder superimposed on the trapezoidal view finder;
- determining the corners of the target document image within the trapezoidal view finder using edge detection and line projection;
- maximizing the target document image within the trapezoidal view finder using the determined corners;
- automatically capturing the target document image for post-processing;
- and
- semantically processing the captured image to qualify the captured image for transmission to a remote site, wherein the semantically processing step comprises the steps of:
- providing semantic knowledge of the target document within the mobile device;
- by using optical character recognition, measuring a confidence level of each character in the target document image based upon the semantic knowledge of the target document;
- and
- qualifying the target document image for transmission to a remote site when an average confidence level for all the characters achieves a specified score.
Dependencies are inferred from the claim text.