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Method for extracting and displaying text messages from television signal and television

A technology for extracting text from TV signals, applied in the field of TV sets, can solve the problems of TV signal and display screen aspect ratio not matching, subtitles cannot be displayed, etc., to achieve the effect of reducing computing requirements and improving recognition efficiency

Active Publication Date: 2012-11-28
HISENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a method for extracting and displaying text information from TV signals and a TV set, so as to solve the problem that subtitles cannot be displayed due to the inconsistency between the TV signal and the aspect ratio of the display screen

Method used

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  • Method for extracting and displaying text messages from television signal and television
  • Method for extracting and displaying text messages from television signal and television
  • Method for extracting and displaying text messages from television signal and television

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Embodiment Construction

[0082] In order to further explain the technical means and effects adopted by the present invention to achieve the intended invention purpose, the method for extracting and displaying text information from TV signals and the TV set according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Embodiments, methods, steps and effects are described in detail below.

[0083] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of specific embodiments, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the present invention. limit.

[0084] See fi...

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Abstract

The invention discloses a method for extracting and displaying text messages from a television signal and a television. The method comprises the steps of: receiving at least one frame of television signal; obtaining a static image from the television signal; intercepting a detection image from a set region on the static image, wherein the set region covers the text messages on the static image; identifying the detection image, extracting the text messages; and displaying the extracted text messages. According to the invention, specially aiming at the characteristics of the text messages on a television image, through intercepting a part on the static image, including texts, the detection image with a smaller detection region is formed; therefore, compared with the prior art, the method has the advantages of reducing operation requirements, and increasing identification efficiency; and according to the particularity of the television signal, through comparing two frames of images, an image background can be removed, and the text messages can be conveniently extracted.

Description

technical field [0001] The invention relates to the field of video image and processing, and particularly designs a method for extracting and displaying text information from television signals and a television set using the method. Background technique [0002] In order to better meet the needs of users, many TV programs have subtitles, which are of great help to users in noisy environments and when translation is required. With the popularization of digital TV, the aspect ratio of many TVs on the market is 16:9, and the screen images of TV programs broadcast by TV stations are all in the standard aspect ratio of 4:3, resulting in TV screen Does not match the aspect ratio of the TV display screen. For this reason, many televisions have several display modes for the user to choose from: [0003] 1) 16:9 full screen mode. [0004] That is, the TV video image with a standard aspect ratio of 4:3 is stretched to an aspect ratio of 16:9, so that it can be displayed in full scr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/431G06K9/32
Inventor 张文军
Owner HISENSE
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