Method and system for realizing dynamic two-dimensional subtitle through data array

Abstract

The invention discloses a method and a system for realizing a dynamic two-dimensional subtitle through a data array, mainly relating to the making and processing of a special subtitle effect in the field of broadcast television program making and broadcasting. The method comprises the following steps of: 1) determining a subtitle window resolution; 2) establishing a system process array unit according to the subtitle window resolution, and recording unit assignment corresponding to each frame during the special effect process in the unit; 3) establishing a system special subtitle effect data array unit databank in which a frame variable is used as a key word; and 4) reading the databank sequentially in accordance with the order of frames. The system comprises a subtitle window information reading unit, a special effect data array generating unit, a special effect data array unit databank establishing unit and a frame reading unit. According to the method and the system, selections for setting the resolution are provided for a user; subtitle window files with the same size and same resolution can be set up flexibly; by establishing the special effect data array, the actual pixel attribute change condition of the subtitle window is recoded, thereby accomplishing the establishment of the corresponding databank; for the subtitle window which is set up, the assignment may not be calculated; a duty ratio optimizing method is provided; and the pixel on which the assignment is not carried out in the subtitle window can be separated from the whole databank to be assigned uniformly, and thus the assignment number of the pixels in the actual subtitle window is reduced.

Description

technical field [0001] The invention relates to the production and broadcasting of program subtitles and related technical fields, in particular to a method and system for realizing dynamic two-dimensional subtitles through data arrays. Background technique [0002] In the existing program production and broadcasting and related technical fields, in the process of program material production, in order to better express the text, a large number of subtitles need to be synthesized, especially in the production and playback of large-scale 3D films and materials. In order to obtain better effects, it is often necessary to insert special effects into subtitles. With the continuous improvement of special effects requirements, 3D effect subtitle special effects have appeared one after another. In the process of realizing 3D subtitle special effects, a large amount of data needs to be calculated. And usually will carry out a large number of calculations with the help of the GPU of t...

AI Technical Summary

Problems solved by technology

[0005] In the production of 3D subtitle deformation, large-capacity storage space and fast running speed are required in the synthesis process, so the requirements for graphics card and GPU are relatively high, and the system is wasted in the process of simple special effect synthesis , at the same time, there are also many restrictions on the playback device, such as operating speed and processing power, which limit the production and use of 3D subtitle deformation effects.

[0006] At the same time, in the existing subtitle deformation animation processing process, the amount of calculation is directly related to the resolution of the subtitle window. In the process of high-resolution and large-area subtitle image processing, a large amount of system resources will be occupied, and the calculation speed will cause problems. Subtitle synthesis takes a long time and cannot meet the needs

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