Automatic aspect ratio control method based on AFD (automatic feeding device)

A control method and aspect ratio technology, which is applied in the field of automatic aspect ratio control based on AFD, can solve the problem that viewers cannot normally recognize subtitle content, cannot flexibly adjust the combination of video image file aspect ratio and subtitle area, and affect TV Program visual effects and other issues, to eliminate overlap and ensure viewing effect

Inactive Publication Date: 2012-06-27
成都东方盛行电子有限责任公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the existing control methods, to provide a new method of automatic aspect ratio control based on AFD, to overcome the traditional video program subtitle content often overlaps with the video program image, or with the video image itself Overlapping translation subtitles, etc., causing viewers to fail to recognize the subtitle content; tr

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  • Automatic aspect ratio control method based on AFD (automatic feeding device)
  • Automatic aspect ratio control method based on AFD (automatic feeding device)

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Embodiment Construction

[0015] Further describe the technical scheme of the present invention below in conjunction with accompanying drawing: as figure 1 As shown, the automatic aspect ratio control method based on AFD includes the following steps:

[0016] (1) Calculate the source program image zoom area rectangle rectSource according to the video image height, width and AFD information of the source program;

[0017] (2) Calculate the zoom area rectangle rectDest of the target program image according to the height and width information of the target program image;

[0018] (3) Scale the data of the zoom area rectangle rectSource of the source program image to the data size of the zoom area rectangle rectDest of the target program image;

[0019] (4) Fill the data of the rectSource, the zoom area rectangle of the source program image after scaling, into the target program image;

[0020] (5) Fill the part outside the zoom area rectangle rectDest in the target program image with black, and use it a...

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Abstract

The invention discloses an automatic aspect ratio control method based on an AFD (automatic feeding device), which comprises the steps of calculating zoom region rectangles of a source program image and a target program image; zooming a zoom region rectangle data size of the source program image to be equal to that of zoom region rectangle data of the target program image; filling the zoomed zoom region rectangle data of the source program image into the target program image; and filling parts except the part of the zoom region rectangle in the target program image with black, the filled parts serve as a caption region. The method disclosed by the invention carries out aspect ratio adjusting on video file data based on AFD information, completely covers a whole picture on television combined with the caption region, avoids phenomenon that the caption contents are overlapped with video program images or self translated captions and the like, flexibly adjusts the aspect ratio of the video image files to be combined with the caption region, so as to avoid the cases that the captain region is over-wide or over-narrow and the like, and ensure the viewing effect of audiences.

Description

technical field [0001] The invention relates to an AFD-based automatic aspect ratio control method. Background technique [0002] When broadcasting digital video programs on the hard disk of a TV station, it is often necessary to superimpose left-hand and right-hand subtitles, announcements, program previews, or stock information, etc., and usually set the subtitle content at the bottom of the screen according to the audience's viewing habits. However, the subtitle content of traditional video programs often overlaps with the video program image, or overlaps with the translated subtitles in the video image itself, so that viewers cannot normally recognize the subtitle content and affect the audience's viewing experience. [0003] In order to solve this phenomenon, TV workers specially designed a subtitle area for the subtitle content. The white subtitle is displayed in the black area background, which can clearly display the subtitle content, which is convenient for the audi...

Claims

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Application Information

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IPC IPC(8): H04N5/278H04N7/01
Inventor 冯良怀温大川张月何亮文斌
Owner 成都东方盛行电子有限责任公司
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