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US 9,298,964 B2Granted
Imaging terminal, imaging sensor to determine document orientation based on bar code orientation and methods for operating the same
AssigneeHand Held Products, Inc.
InventorsJingquan Li, Robert M. Hussey, Timothy P. Meier
Life of this patent
Estimating the term…
Abstract
Embodiments of an image reader and/or methods of operating an image reader can capture an image, identify a bar code or IBI form within the captured image, and, store or display the captured image responsive to the an orientation of the bar code.
Claims22
An indicia reading terminal method for processing a document image, comprising:
- receiving a document image disposed in a frame of image data, wherein a portion of the document image is occupied by a barcode;
- cropping the document image to a region of interest detected in the document image so that a resulting cropped document image includes the barcode and additional data;
- correcting the cropped document image for a spatial relationship between a document and the indicia reading terminal, resulting in a corrected document image;
- aligning a two dimensional orientation of the corrected document image to the two dimensional orientation of the flame of image data, resulting in an aligned document image;
- decoding the barcode to determine sequenced corners of a position of the barcode within the aligned document image, where the sequenced corners represent an orientation of the barcode in the aligned document image;
- determining an orientation of the barcode within the aligned document image;
- storing or displaying the aligned document image in a prescribed viewing position responsive to an orientation of the barcode in the aligned document image.
4 more elements
A method of processing data from an indicia reading terminal including an image sensor array comprising a plurality of pixels, the method comprising:
- capturing an image of a document, wherein a portion of the image of a document is occupied by a barcode;
- automatically cropping the captured image of the document to determine corner points of the document, wherein the cropping is performed so that a resulting cropped image of the document includes the barcode and additional data;
- correcting the cropped document image for a spatial relationship between a document and the indicia reading terminal, resulting in a corrected document image;
- aligning a two dimensional orientation of the corrected document image to the two dimensional orientation of the frame of image data, resulting in an aligned document image;
- decoding the barcode, where the decoding provides sequenced corners of a position of the barcode in the aligned image of the document, and where the sequenced corners represents an orientation of the barcode in the aligned image of the document;
- determining an orientation of the aligned image of the document according to the orientation of the bar code;
- formatting the oriented image of the document so that a top of the oriented image of the document represents a top of the document in a proper orientation;
- and
- displaying or saving the formatted image of the document.
6 more elements
Dependencies are inferred from the claim text.