Natural scene character detection method and system

A natural scene, text detection technology, applied in the field of pattern recognition, can solve the problems of slow speed, difficult to effectively deal with complex background, difficult text area, etc., to achieve the effect of speeding up automation, improving recall rate, and improving recognition performance

Inactive Publication Date: 2014-09-17
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

Coupled with many factors such as changes in shooting angles and the influence of different lighting, it is difficult to quickly and accurately detect text areas in natural scene images
In the existing technical solutions, the method based on connected domain analysis has the advantage of faster

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  • Natural scene character detection method and system
  • Natural scene character detection method and system
  • Natural scene character detection method and system

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0034] figure 1Shown is the flowchart of the natural scene text detection method of the present invention. The processing steps of the embodiment of the present invention mainly include six parts: extracting preliminary candidate regions of text, eliminating pseudo-character regions, recovering lost character candidate regions, forming character line candidate regions, eliminating pseudo-charac...

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Abstract

The invention discloses a natural scene character detection method and system and belongs to the technical field of mode identification. The natural scene character detection method comprises the steps of performing binarization processing on an image to obtain a character preliminary candidate region, and establishing two layers of filtering mechanisms based on judgment rules and a confidence coefficient image to remove a pseudo character region; making obtained character candidate region form a seed region in order to solve the character loss problem possibly caused in the earlier stage processing and restoring the lost character candidate region in the adjacent region according to contextual information; making adjacent character regions arranged in the horizontal direction form character lines and performing judgment through a classifier to remove pseudo character lines; finally, segmenting characters in the character lines with words as units. By means of the natural scene character detection method and system, characters in complex natural scenes can be extracted effectively, and high actual value in quickening automation and intelligence of comprehension and analysis of the natural scenes is achieved.

Description

technical field [0001] The invention belongs to the technical field of pattern recognition, and more specifically relates to a method and system for character detection in natural scenes. Background technique [0002] With the maturity and popularization of digital camera equipment, people have been able to record all aspects of the real world under different perspectives very conveniently and quickly. As a human language, visual text has a special and irreplaceable position in human activities. Text detection in natural scenes is one of the important research topics of computer vision and pattern recognition technology in the field of target detection and recognition. The purpose of this technology is to accurately detect text information in the captured natural scene images. It has broad application prospects in natural scene understanding and analysis, robot-assisted navigation, video retrieval, assisted reading for the blind, and text translation. [0003] The ultimate...

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Application Information

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IPC IPC(8): G06K9/32G06K9/46
Inventor 桑农王润民高常鑫罗思慧陈梦况小琴
Owner HUAZHONG UNIV OF SCI & TECH
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