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Intelligent mobile terminal scene character processing method

An intelligent mobile terminal and word processing technology, applied in character recognition, character and pattern recognition, instruments, etc., can solve problems such as difficulty in word processing, and achieve the effect of improving accuracy

Active Publication Date: 2015-03-11
XIDIAN NINGBO INFORMATION TECH INST
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Problems solved by technology

[0005] However, there are major technical challenges in implementing the above applications on smartphones, which are mainly reflected in the following two aspects: On the one hand, the diversity and uncertainty of text in natural scenes make it extremely difficult to process text in natural scenes; On the other hand, the limitations of the CPU and GPU of smartphones put forward higher requirements for the accuracy and real-time performance of word processing methods

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  • Intelligent mobile terminal scene character processing method
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  • Intelligent mobile terminal scene character processing method

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0053] The present invention provides a method for processing scene text in an intelligent mobile terminal, which includes the following steps, see figure 1 Shown:

[0054] Step 1: Coarse edge-based text detection:

[0055] The rough detection of text is the first step, and its main task is to detect as many texts in the input scene image I as possible. Only when the "recall rate" of the rough detection of the text is high, the subsequent text candidate area screening will be effective. Significance, so that the overall detection accuracy will be higher, because the edge detection is relatively fast and the "recall rate" is high, suitable for smart phones, so the text rough detection method adopted in the present invention is based on the edge text detection algorithm, specifically include:

[0056] (1-1), adopt color image edge detection m...

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Abstract

The invention relates to an intelligent mobile terminal scene character processing method. The method comprises the following steps: step 1, performing text coarse detection based on edges; step 2, obtaining a stroke width graph T of an input scene image I, analyzing the stroke widths and geometric characteristics of each candidate text area in a candidate text area set S, rejecting a non-text area not according with requirements, and finally outputting a positioning result graph L1; step 3, performing identification pretreatment; step 4, performing extraction operation of standard and directional element characteristics on segmented single characters; and step 5, performing fine classification based on Gabor characteristics. Compared to the prior art, the method provided by the invention has the following advantages: the accuracy is greatly improved, the recall rate is quite high, the time performance is substantially improved, and the accuracy of character identification is greatly enhanced.

Description

technical field [0001] The invention relates to the field of text pattern recognition in pattern recognition, in particular to a scene text processing method of an intelligent mobile terminal, which is used for recognizing scene text photographed by an intelligent mobile terminal. Background technique [0002] With the rapid development of information technology, pattern recognition has been widely used and valued in many scientific and technological fields, such as artificial intelligence, medicine, neurobiology, weapon manufacturing, navigation and other fields. In these fields, common applications include fingerprint recognition, face recognition, optical character recognition, text recognition, precision guidance, fault detection, speech recognition and translation. The rapid development and wide application of pattern recognition technology has greatly promoted the construction of the national economy and the modernization of national defense science and technology. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20
CPCG06V10/22G06V30/10
Inventor 卢朝阳李静刘晓佩姜维通天意汪文芳
Owner XIDIAN NINGBO INFORMATION TECH INST
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