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Text detection method and device

A text detection and text technology, applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problem of global information ignorance, and achieve the effect of improving precision and recall rate and improving accuracy

Inactive Publication Date: 2018-01-05
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A common shortcoming of them is that each group is evaluated in isolation; while the global information in the image is ignored

Method used

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  • Text detection method and device

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Embodiment Construction

[0043] With reference to the drawings listed above, this section describes specific embodiments and their detailed structures and operations. Note that the embodiments to be described below are illustrated by way of illustration only and not limitation, and therefore they do not limit the scope of the present invention, and can be changed into various forms within the scope of the present invention. Those skilled in the art, under the teachings herein, will recognize that there is a scope equivalent to the example embodiments described herein.

[0044] figure 1 It is a block diagram showing the hardware configuration of a computer system implementing an embodiment of the present invention.

[0045] Such as figure 1 As shown in the figure, the system includes at least a computer 100, and the computer 100 includes a CPU 101, a RAM 102, a ROM 103, a system bus 104, an input device 105, an output device 106, and a driver 107. For example, the computer 100 may be an image recognition d...

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Abstract

The invention provides a text detection method and device. The text detection method and device are used for positioning a text region in a natural scene image. The invention relates to a text detection method and device and a text information extraction method and system. The method for detecting a text region in an image comprises the steps of generating assemblies by an inputted image; groupingthe assemblies to form assembly groups; classifying the assembly groups into text groups and non-text groups according to characteristics acquired by distribution of assembly connection; and generating a text region based on the text groups. Compared with the prior art, the method provided by the invention improves the precision and recall rate through the equivalent time cost.

Description

Technical field [0001] The present invention generally relates to but not limited to computer vision, image processing and understanding, and more specifically relates to text detection methods and devices. Background technique [0002] The text in natural scene images and video frames carries important information for visual content understanding and retrieval. Detecting text in images, especially natural images or video frames, for many computer vision applications (for example, computerized assistance for visually impaired people or foreigners, automatic retrieval of images or videos, and robotic navigation in urban environments Etc.) is crucial. [0003] However, text detection in natural scenes is a tricky subject. The main challenge lies in the diversification of texts with different fonts, sizes, skew angles, or distortions. Environmental factors such as uneven lighting and reflections, poor lighting conditions, and complex backgrounds add more complexity. [0004] In relat...

Claims

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Application Information

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IPC IPC(8): G06K9/32G06K9/46
Inventor 麻文华
Owner CANON KK
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