Detecting text using stroke width based text detection

摘要

Detecting text using stroke width based text detection. As a part of the text detection, a representation of an image is generated that includes pixels that are associated with the stroke widths of components of the image. Connected components of the image are identified by filtering out portions of the pixels using metrics related to stroke width. Text is detected in the image based on the identified connected components.

主权项

1. A method for detecting text using stroke width based text detection, comprising:
generating a representation of an image taken from an imaged scene that includes pixels that are associated with stroke widths of components of said image; identifying connected components of said image by filtering out portions of said pixels using metrics related to stroke width to exclude said portions of said pixels; and detecting text in said image by building a graph that contains nodes that represent identified connected components, wherein, initially, said graph is an intact string of nodes in which each node is connected to all other nodes, and wherein connections between nodes that are identified as not belonging to a same text line are severed, based on:
distance in a vertical direction;an amount of intersection in a horizontal direction; anda difference in average stroke width between connected components.