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Character and image recognition system based on video image and method thereof

A character recognition and image technology, which is applied in the field of image processing and pattern recognition, can solve the problems such as the difficulty of splicing multiple images and the inconvenient way of covering, and achieve the effect of improving the scope of application

Active Publication Date: 2009-09-16
SAMSUNG ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, it is very inconvenient to take pictures of different areas of a newspaper, so that each area of ​​the newspaper is covered by at least one image, and it is also very difficult to stitch multiple images into the original newspaper image.

Method used

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  • Character and image recognition system based on video image and method thereof
  • Character and image recognition system based on video image and method thereof
  • Character and image recognition system based on video image and method thereof

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Embodiment Construction

[0032] Some terms and definitions used in the present invention are as follows:

[0033] The document layout refers to the relative position and logical relationship of each unit of the document on the document image. Usually, the user requires the system to create an electronic document with the same content and layout based on the original document image.

[0034] Image or video frame addition refers to the copying of an image or video frame area, that is, part or all of an image or video frame is copied to a designated area of ​​another image.

[0035] The reading order refers to the reading order of characters. For example, the reading order of the text in the same line is usually from left to right, and the reading order between lines is from top to bottom. The reading order referred to here includes between lines and between lines. Read relationship between characters on the same line.

[0036] Text detection refers to the detection of text regions and their positions o...

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Abstract

The invention provides an image mosaicking method based on video or a plurality of images, which comprises the following steps of: a) obtaining a video frame or image containing text; b) selecting the video frame or image from the continuous video frames or a plurality of images; c) extracting the text area or removing the background area from the video frame or image selected in step b ); and d) mosaicking the continuous video frame or image, or mosaicking character recognition results of the continuous video frame or image. The invention can improve the application scope of OCR systems from the traditional single image to continuous video signals, especially in special OCR application systems such as video-based card recognition systems.

Description

technical field [0001] The invention relates to the fields of image processing and pattern recognition, in particular to a system and method for character and image recognition based on video images. Background technique [0002] Most of the applications related to text recognition in common image recognition systems currently use OCR (Optical Character Recognition Technology), and it has been used very successfully. It is widely used in license plate recognition, certificate / business card recognition, document digitization and other fields. However, most of the recognition objects of these existing OCR systems or layout analysis systems are only aimed at the text in the input complete image, and only text information exists in the recognition results given, while images such as LOGO etc. exist in the input complete image. Information is discarded without identification or stored as an image. Therefore, a large amount of useful information is often lost. [0003] In additi...

Claims

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Application Information

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IPC IPC(8): G06K9/32G06K9/34G06K9/64
Inventor 陈又新欧文武王炎罗恒亮王华
Owner SAMSUNG ELECTRONICS CO LTD
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