Video word processing method based on interframe information

A word processing and video technology, used in image data processing, image enhancement, instruments, etc., can solve problems such as flicker, jump, inaccurate repair results, etc., to reduce flicker and jump between frames, guarantee Time continuity, the effect of ensuring correctness

Inactive Publication Date: 2013-07-24
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a video text processing method based on inter-frame information, which can solve the problems of inaccurate repair results in existing methods, and the repair results are prone to flickering and jumping when playing.

Method used

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  • Video word processing method based on interframe information
  • Video word processing method based on interframe information
  • Video word processing method based on interframe information

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation examples.

[0030] Below at first some terms of the present invention are used to explain:

[0031] Text Area of ​​Image: The area where the text in the image is located.

[0032] False alarm area: A non-text area in an image that is detected as a text area.

[0033] Background Repair: Remove the text area, repair and restore the background blocked by the text area.

[0034] Motion offset: The amount of change in the position of a region in previous and subsequent frames.

[0035] Best matching block: the area within the search range that is most similar to the area to be repaired in a certain measure.

[0036] Such as figure 2 , 3 , 4, shown in 5, the present invention is based on the video text processing method of interframe information and comprises the following steps:

[0037] (1) Detect the text area R(x, y, t) of the current image...

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Abstract

The invention discloses a video word processing method based on interframe information. The method comprises the following steps of: detecting a text area R(x, y, t) of a current image; checking the text area R(x, y, t) of a current image f(x, y, t); performing background restoration on the text area R(x, y, t) from the first frame to the last frame; and performing the background restoration fromthe last frame to the first frame. The method has the advantages of ensuring the accuracy of detection positioning, ensuring the correctness of a restoration result, and ensuring the time continuity of a video result.

Description

technical field [0001] The invention belongs to the application field of video image processing, and in particular relates to a video text processing method based on inter-frame information. Background technique [0002] In video image processing, text extraction and image information restoration have very broad application prospects, so they have been paid more and more attention in recent years. [0003] However, the current methods for automatically locating text regions in images are also difficult to completely detect and extract text in some complex backgrounds. The current image inpainting algorithms can be mainly divided into two categories: PDE-based inpainting methods and texture-based inpainting methods. It mainly embodies two different ideas of speculation and optimization. These methods are often based on image processing, ignoring the temporal correlation of video frames, resulting in inaccurate repair results, and the repair results are prone to flickering, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
Inventor 田岩许毅平文灏陈柱孙福生
Owner HUAZHONG UNIV OF SCI & TECH
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