FINDING TEXT IN NATURAL SCENES
First Claim
1. A computer-implemented method for automatically detecting text in electronic images of natural scenes, comprising:
- receiving an electronic image for analysis;
performing an edge-detection algorithm on the electronic image;
identifying closed contours in the electronic image as a function of detected edges;
establishing links between closed components;
identifying candidate text lines as a function of the identified closed contours;
classifying candidate text lines as being text or non-text regions; and
outputting, via a graphical user interface (GUI), verified text regions in the electronic image to a user.
5 Assignments
0 Petitions
Accused Products
Abstract
As set forth herein, systems and methods facilitate providing an efficient edge-detection and closed-contour based approach for finding text in natural scenes such as photographic images, digital, and/or electronic images, and the like. Edge information (e.g., edges of structures or objects in the images) is obtained via an edge detection technique. Edges from text characters form closed contours even in the presence of reasonable levels of noise. Closed contour linking and candidate text line formation are two additional features of the described approach. A candidate text line classifier is applied to further screen out false-positive text identifications. Candidate text regions for placement of text in the natural scene of the electronic image are highlighted and presented to a user.
-
Citations
19 Claims
-
1. A computer-implemented method for automatically detecting text in electronic images of natural scenes, comprising:
-
receiving an electronic image for analysis; performing an edge-detection algorithm on the electronic image; identifying closed contours in the electronic image as a function of detected edges; establishing links between closed components; identifying candidate text lines as a function of the identified closed contours; classifying candidate text lines as being text or non-text regions; and outputting, via a graphical user interface (GUI), verified text regions in the electronic image to a user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A computerized system that facilitates automatically detecting text in electronic images of natural scenes, comprising:
-
a memory that stores computer-executable instructions; and a processor configured to execute the instructions, the instructions comprising; receiving an electronic image for analysis; performing an edge-detection algorithm on the electronic image; identifying closed contours in the electronic image as a function of detected edges; establishing links between closed components; identifying candidate text lines as a function of the identified closed contours; classifying candidate text lines as being text or non-text regions; and a graphical user interface (GUI) via which verified text regions in the electronic image are displayed to a user. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
Specification