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Method for implementing multiple special effects of icon and subtitling in video

A video and icon technology, applied to color TV parts, TV system parts, TVs, etc., can solve the problems of large and inflexible equipment

Inactive Publication Date: 2008-06-11
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional subtitle machines are all analog subtitle machines. Adding subtitles in the analog domain, the equipment is huge and inflexible. This kind of subtitle machines will eventually be gradually eliminated by digital subtitle machines.

Method used

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  • Method for implementing multiple special effects of icon and subtitling in video
  • Method for implementing multiple special effects of icon and subtitling in video

Examples

Experimental program
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Embodiment Construction

[0037] The present invention is realized on PC, and the video source of test is the foreman file of 176*144, as shown in Figure 2, the subtitle picture that the test is used to add is " welcome " two words, as shown in Figure 3 .

[0038] First, write the word "Welcome" in the drawing board, then save it as the RGB format of the BMP24bit image, and then convert the RGB format of the BMP24bit image into the YUV422 format.

[0039] Then, test the methods of implementing the three special effects of scrolling, fading and rotating respectively.

[0040] (1) Test the method of implementing scrolling effects.

[0041] Superimpose the word "Welcome" on the lower right corner of the kth frame image, as shown in Figure 4. Realize the special effect of scrolling to the left. The position of the subtitle in the k+1 frame image is 15 pixels to the left than the position in the k-th frame image. In order to see the effect after the movement more clearly, select the kth The +5th frame ima...

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Abstract

The invention relates to a method for realizing a plurality of special effects like icons or subtitles in a video and belongs to the video signal processing technical field. The invention comprises the following steps: the icons or the subtitles are arranged inside a drawing board and stored in RGB form of BMP bitmap, and the RGB form of the BMP bitmap is converted into YUV form; icon or subtitle files which have been converted into the YUV form are superposed into video files, and data of the video files is also in the form of YUV; a rolling special effect of the icons or the subtitles is realized, and the realization method is to make the icons or the subtitles located on different positions in different frame images; a fade-in fade-out special effect of the icons or the subtitles is realized, and the realization method is that the fade-in fade-out effect can be realized through continuous change of pixel values by adjusting the pixel values f'k+1 (x, y) of icon or subtitle data areas in a k+1 frame image; a rotation special effect of the icons or the subtitles is realized, and the realization method is to firstly acquire pixel values after the icons or the subtitles are rotated at different angles. The invention has the advantage of simple, easy and flexible realization of various special effects.

Description

technical field [0001] The invention relates to the technical field of video signal processing, in particular to a method for realizing multiple special effects of icons or subtitles in videos. Background technique [0002] In today's society where multimedia services are developing rapidly, video services are playing an increasingly important role, and video services also convey more and more information. The video service allows external parties to better understand the corporate culture and establish a good corporate image. [0003] Therefore, companies always have to add their own specific subtitles in their promotional videos, such as vision, slogans or slogans, etc., and also add some of their own corporate icons. These icons and subtitles enhance the display effect through various special effects. Attract the attention of consumers to enhance the influence of enterprises. [0004] Traditional subtitle machines are all analog subtitle machines. Adding subtitles in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/278
Inventor 张延华陈春朋胡启梁
Owner BEIJING UNIV OF TECH
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