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Character detection device, method, and system

A detection method and letter technology, applied in the field of image processing, can solve the problems of reduced text detection accuracy and difficulty in detection, etc.

Pending Publication Date: 2021-05-28
NAVER CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is relatively simple to detect text from text images, however, text included in images taken in real life such as signboards, road signs, menus, etc., may be difficult to detect due to various design factors, image transitions, light reflections, etc. difficulty
[0003] A method for detecting words composed of multiple letters in an image has been proposed, however, when words are detected centered on words instead of individual letters, there is a problem with words arranged in a curve or depending on the viewpoint The problem that the detection accuracy of distorted characters is reduced

Method used

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  • Character detection device, method, and system
  • Character detection device, method, and system
  • Character detection device, method, and system

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Embodiment Construction

[0036] The present disclosure allows various changes and can have various embodiments, therefore, specific embodiments are illustrated in the drawings and described through the detailed description. However, this does not limit the present disclosure in a specific embodiment, but should be understood to include all changes, equivalents, and substitutions included within the idea and technical scope of the present disclosure.

[0037] In describing the embodiments, in the case where it is considered that specific descriptions on well-known technologies may unnecessarily obscure the gist of the invention, their detailed descriptions are omitted. Also, numerals (for example, first, second, etc.) used in describing the embodiments are merely identification symbols for distinguishing one constituent element from other constituent elements.

[0038] Also, when it is mentioned in this specification that one constituent element is "connected" or "connected" to another constituent elem...

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Abstract

An embodiment provides a character detection method performed by a character detection device, the character detection method comprising the steps of: obtaining an input image; inputting the input image to a character detection model including a neural network and processing the input image; and obtaining at least one output image from the character detection model, wherein the output image includes a probability value image which indicates a probability of existence of a character in the input image in an image space at a location corresponding to the input image.

Description

technical field [0001] The present disclosure relates to the field of image processing. More particularly, the present disclosure relates to an apparatus, method, and system for detecting letters included in an image by using a machine learning model. Background technique [0002] Detecting the position of text within an image is a key element in human computer interaction (HCI). It is relatively simple to detect text from text images, however, text included in images taken in real life such as signboards, road signs, menus, etc., may be difficult to detect due to various design factors, image transitions, light reflections, etc. difficulty. [0003] A method for detecting words composed of multiple letters in an image has been proposed, however, when words are detected centered on words instead of individual letters, there is a problem with words arranged in a curve or depending on the viewpoint There is a problem that the detection accuracy of distorted characters decre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/11G06N3/08
CPCG06T7/11G06N3/08G06T2207/20081G06V20/63G06V10/774G06N20/00G06V30/148
Inventor 白荣民李活石李巴道
Owner NAVER CORP
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