Method of image pre-analyzing of a machine-readable form of non-fixed layout
First Claim
1. A method of pre-processing of a machine-readable form image with non-fixed fields layout, comprising a bit-mapped image of the filled in form, at least one model of a form, containing spatial and parametric properties of objects thereof, preliminarily assigning at least one object of the form as a reference point for spatial binding of at least one data input field thereof, performing at least the following steps:
- a step of eliminating skew, distortion and noise of the image, a step of parsing the image into regions, a step of defining location of at least one data input field relatively to at least one reference point, said step further comprising;
selecting a data input field to search in the said form model description, accepting from the model description at least one reference point properties for the spatial relative reference of the said data input field, searching said at least one reference point on the form image, searching the said data input field on the form image relatively to at least one reference point taking into account all spatial and parametrical properties, described in the form model, profound identification of the said data input field position in the case of multiple search result.
6 Assignments
0 Petitions
Accused Products
Abstract
A method of a pre-recognition processing is proposed for forms with non-fixed fields layout.
One or more objects, that are present on the form and can be reliably identified after conversion of the form into electronic state, are preliminarily assigned to act as reference points for spatial binding of data input fields or groups thereof.
In the case of a text object as a reference point, the text recognition is additionally performed.
The spatial location of the reference point may be not fixed.
The reference point may be described as alternative.
The field identification may be performed either automatically or manually.
-
Citations
12 Claims
-
1. A method of pre-processing of a machine-readable form image with non-fixed fields layout, comprising
a bit-mapped image of the filled in form, at least one model of a form, containing spatial and parametric properties of objects thereof, preliminarily assigning at least one object of the form as a reference point for spatial binding of at least one data input field thereof, performing at least the following steps: -
a step of eliminating skew, distortion and noise of the image, a step of parsing the image into regions, a step of defining location of at least one data input field relatively to at least one reference point, said step further comprising;
selecting a data input field to search in the said form model description, accepting from the model description at least one reference point properties for the spatial relative reference of the said data input field, searching said at least one reference point on the form image, searching the said data input field on the form image relatively to at least one reference point taking into account all spatial and parametrical properties, described in the form model, profound identification of the said data input field position in the case of multiple search result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification