US 11,687,886 B2 · Method and device for identifying number of bills and multiple bill areas in image

Abstract

The invention provides a method and a device for identifying the number of bills and multiple bill areas in an image. The method comprises the following steps: acquiring the image containing a plurality of bills arranged in sequence; processing the image to obtain a plurality of boundary lines of each bill in the image; wherein the boundary lines comprise a first type of boundary lines which are substantially perpendicular to the bill arrangement direction; generating a long line segment which is substantially parallel to the arrangement direction of the bills and passes through the area where all the bills are located, wherein the long line segment has an intersection point with each first type of boundary line; and determining the number of bills in the image according to the lengths of the sub-line segments between the adjacent intersection points.

Claims23

Dependent claims

A method for identifying a number of bills in an image, the method comprises:

acquiring the image containing multiple bills arranged in sequence;
processing the image to obtain multiple boundary lines of each of the bills in the image, wherein the multiple boundary lines comprise a first type of boundary lines which are substantially perpendicular to a bill arrangement direction;
generating a long line segment which is substantially parallel to the bill arrangement direction and passes through an area where all the bills are located, wherein the long line segment has an intersection point with each of the first type of boundary lines;
determining the number of the bills in the image according to lengths of sub-line segments between each of the adjacent intersection points.

1 more element

A method for identifying multiple bill areas in an image, the method comprises:

acquiring the image containing multiple bills;
identifying an approximate area of each bill in the image through a machine vision algorithm;
for each bill, processing the approximate area of the bill in the image to obtain a line pattern with a gray contour in the approximate area of the bill;
merging similar lines in the line pattern to obtain multiple initial merged lines, and determining a boundary matrix according to the multiple initial merged lines;
merging similar lines among the multiple initial merged lines to obtain target lines, wherein the target lines further comprise the initial merged lines that are not merged;
determining multiple reference boundary lines in the approximate area among the multiple target lines according to the boundary matrix;
and
obtaining multiple intersection points of the multiple reference boundary lines, and using an internal area defined by the multiple intersection points and the multiple reference boundary lines as an actual area of the bill.

5 more elements

Dependencies are inferred from the claim text.

Method and device for identifying number of bills and multiple bill areas in image

Life of this patent

Method and device for identifying number of bills and multiple bill areas in image

Life of this patent

Abstract

Claims23