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Method for positioning characters in image, and filter

A filter, a technology in images, applied in the field of filters, can solve the problems of reducing the detection effect of strokes, not fully considering the brightness consistency of stroke lines, the influence of stroke corners and intersections, etc.

Inactive Publication Date: 2018-02-02
北京新岸线网络技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical scheme of subtitle detection based on stroke detection is very meaningful, but the application of the stroke filter designed at present is very simple, and does not fully consider the influence of stroke line brightness consistency, stroke corners and intersection points, and reduces the stroke detection. Effect

Method used

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  • Method for positioning characters in image, and filter
  • Method for positioning characters in image, and filter
  • Method for positioning characters in image, and filter

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Embodiment Construction

[0055] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not intended to automatically limit the application if in fact more than one invention is disclosed The scope is any individual invention or inventive concept.

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Abstract

The invention discloses a method for positioning characters in an image, and a filter. The method comprises the steps of: receiving an image to be detected; calculating alight stroke pattern and a dark stroke pattern of the image; calculating character distribution regions by utilizing the light stroke pattern and the dark stroke pattern; segmenting each character distribution region into at leastone character row; and determining upper and lower boundaries of each character row. Therefore, the method can effectively position the characters from the image quickly.

Description

technical field [0001] The invention relates to filter technology, in particular to a technology for processing text in images. Background technique [0002] With the continuous increase of Internet video content, and a large number of multimedia applications such as digital library, video on demand, distance teaching, etc., how to retrieve the required information from the massive video is very important. Traditional video retrieval based on keyword description cannot meet the needs of mass video retrieval due to limited description ability, strong subjectivity, manual annotation and other reasons. Therefore, from the 1990s onwards, content-based video retrieval technology has become a hot topic of research, and the recognition technology of video subtitles is the key technology to realize video retrieval. According to the features used, the currently proposed video subtitle detection methods can be roughly divided into three types: region-based, edge-based, and texture-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06K9/34
CPCG06V20/62G06V30/153
Inventor 朱二龙罗旻
Owner 北京新岸线网络技术有限公司